-
New results on non-disjoint and classical strong external difference families Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-02-05 Sophie Huczynska, Sophie Hume
Classical strong external difference families (SEDFs) are much-studied combinatorial structures motivated by information security applications; it is conjectured that only one classical abelian SEDF exists with more than two sets. Recently, non-disjoint SEDFs were introduced; it was shown that families of these exist with arbitrarily many sets. We present constructions for both classical and non-disjoint
-
A new automatic framework for searching rotational-XOR differential characteristics in ARX ciphers Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-02-05 Yuhan Zhang, Lei Zhang, Yafei Zheng, Wenling Wu
In this paper, a security evaluation framework for ARX ciphers, using modular addition as non-linear component, against rotational-XOR differential cryptanalysis is proposed. We first model all the possible propagations for rotational-XOR difference and rotational-XOR differential probability by some conjunctive normal form clauses. Then, acceleration techniques of automatic search are presented to
-
The revised boomerang connectivity tables and their connection to the difference distribution table Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-02-01 Kirpa Garg, Sartaj Ul Hasan, Constanza Riera, Pantelimon Stănică
It is well-known that functions over finite fields play a crucial role in designing substitution boxes (S-boxes) in modern block ciphers. In order to analyze the security of an S-box, recently, three new tables have been introduced: the Extended Boomerang Connectivity Table (EBCT), the Lower Boomerang Connectivity Table (LBCT), and the Upper Boomerang Connectivity Table (UBCT). In fact, these tables
-
Improved Side Channel Attacks on TRIVIUM, GRAIN-128-AEAD, ACORN-128 v3 and ASCON-128a Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-02-01 Soumya Sahoo, Raghavendra Patil, Sandip Kumar Mondal, Santanu Sarkar, Chester Rebeiro
Side Channel Attacks (SCA) exploit physical information leakage from devices performing cryptographic operations, posing significant security threats. While SCA has been extensively studied in the context of block ciphers, similar analyses on stream ciphers and constructions like authenticated encryption are less explored. In this paper, we present a novel enhancement to existing SCA techniques based
-
Perturbation-resilient sets for dynamic service balancing Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-31 Jin Sima, Chao Pan, Olgica Milenkovic
A combinatorial trade is a pair of sets of blocks of elements that can be exchanged while preserving relevant subset intersection constraints. The class of balanced and swap-robust minimal trades was proposed in Pan et al. (in: 2022 IEEE International Symposium on Information Theory (ISIT), IEEE, pp 2385–2390, 2022) for exchanging blocks of data chunks stored on distributed storage systems in an access-
-
Efficient generation of odd order de Bruijn sequence with the same complement and reverse sequences Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-02-01 Zuling Chang, Qiang Wang
Experimental results show that, when the order n is odd, there are de Bruijn sequences such that the corresponding complement sequence and the reverse sequence are the same. In this paper, we propose one efficient method to generate such de Bruijn sequences. This solves an open problem asked by Fredricksen forty years ago for showing the existence of such de Bruijn sequences when the odd order \(n
-
A multiscale and multiphysical numerical approach for sandwich multiphase hybrid fiber plates with smart composite facesheets Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-02-01 Duy-Khuong Ly, Huy-Cuong Vu-Do, Chanachai Thongchom, T. Nguyen-Thoi
This study introduces a comprehensive multiscale and multiphysical numerical approach for analyzing sandwich three-phase nanocomposite plate with multiferroic facesheets in its upper and lower surfaces. The proposed research investigates the zigzag effect and quasi-3D sinusoidal shear deformation, capturing the complex interactions between the core and multiferroic facesheets across multiple physical
-
A time-domain BEM for instantaneous interaction by two ships head-on encountering in incident waves Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-02-01 Xiao Zhang, Yong Cheng, Saishuai Dai, Mingxin Li, Zhiming Yuan, Atilla Incecik
Multi-ship encountering results in complex interactions that significantly modify the surrounding flow field, particularly in the presence of incident waves. Due to the disturbing effect of the complex wave system, the behavior of each ship during the encounter is influenced by the wave characteristics and the relative motions between the ships. This paper establishes a model for ship-to-ship encountering
-
A public key encryption algorithm based on multi-dimensional general Chebyshev polynomial Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-30 Rudong Min, Jiale Han, Shouliang Li, Zhen Yang, Yi Yang
Due to the operational efficiency and lower computational costs of the Chebyshev polynomial compared to ECC, this chaotic system has attracted widespread attention in public key cryptography. However, the single recurrence coefficient limitation and inherent short-period flaw, often render the Chebyshev polynomials cryptosystem ineffective against various attacks, such as Exhaustive Attacks and Ciphertext-Only
-
Linear complementary pairs of skew constacyclic codes Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-31 F. J. Lobillo, José Manuel Muñoz
Linear complementary pairs (LCPs) of codes have been studied since they were introduced in the context of discussing mitigation measures against possible hardware attacks to integrated circuits. In this situation, the security parameters for LCPs of codes are defined as the (Hamming) distance and the dual distance of the codes in the pair. We study the properties of LCPs of skew constacyclic codes
-
On vectorial functions with maximal number of bent components Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-31 Xianhong Xie, Yi Ouyang, Honggang Hu
We study vectorial functions with maximal number of bent components in this paper. We first study the Walsh transform and nonlinearity of \(F(x)=x^{2^e}h(\textrm{Tr}_{2^{2m}/2^m}(x))\), where \(e\ge 0\) and h(x) is a permutation over \({\mathbb {F}}_{2^m}\). If h(x) is monomial, the nonlinearity of F(x) is shown to be at most \( 2^{2\,m-1}-2^{\lfloor \frac{3\,m}{2}\rfloor }\) and some non-plateaued
-
Branching of Weil Representation for $$G_2$$ Adv. Appl. Clifford Algebras (IF 1.1) Pub Date : 2025-01-29 Zhiqiang Wang, Xingya Fan
This paper presents a discussion on the branching problem that arises in the Weil representation of the exceptional Lie group of type \(G_2\). The focus is on its decomposition under the threefold cover of \(SL(2,\, {\mathbb {R}})\) associated with the short root of \(G_2\).
-
The improved interpolating element-free Galerkin method based on nonsingular weight functions for three-dimensional elastoplastic problems Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-30 Y.F. Wang, Y. Lu, L. Chen, M.J. Peng, Y.M. Cheng
Because of the nonlinearity, three-dimensional (3D) elastoplastic problems are very important for any numerical method. In this study, the improved interpolating element-free Galerkin (IIEFG) method based on nonsingular weight functions for elastoplastic problems is presented. An improved interpolating moving least-squares (IIMLS) method with nonsingular weight functions is applied to construct the
-
A stable numerical investigation based on geometric greedy points for 2D time-fractional partial integro-differential equations with singular kernels Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-30 Mojtaba Fardi, Banafsheh Raeisi, Mohammadreza Ahmadi Darani
This paper develops a stable numerical method based on RBFs to solve two-dimensional time-fractional partial integro-differential equations with singular kernels. The spatial discretization uses an RBF-generated Hermite finite difference approach, which applies a geometric greedy sparse approximation technique for node selection, ensuring accuracy and controlling consistency errors. The temporal direction
-
On polynomials over finite fields that are free of binomials Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-29 Fabio Enrique Brochero Martínez, Lucas Reis, Sávio Ribas
Let \(\mathbb {F}_q\) be the finite field with q elements, where q is a power of a prime p. Given a monic polynomial \(f \in \mathbb {F}_q[x]\) that is not divisible by x, there exists a positive integer \(e=e(f)\) such that f(x) divides the binomial \(x^e-1\) and e is minimal with this property. The integer e is commonly known as the order of f and we write \(\textrm{ord}(f)=e\). Motivated by a recent
-
A fast bond-based peridynamic program based on GPU parallel computing Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-29 Yang Yang, Zixin Su, Yijun Liu
Peridynamic is an effective method for addressing fracture problems. However, the non-local theory makes it time-consuming. Although some techniques have been developed to improve computational efficiency, the acceleration effect remains relatively limited. This paper introduces a parallel algorithm for bond-based peridynamic using the GPU parallel CUDA programming technology. The calculation process
-
Polynomial reduction from syndrome decoding problem to regular decoding problem Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-28 Pavol Zajac
The regular decoding problem asks for (the existence of) regular solutions to a syndrome decoding problem (SDP). This problem has increased applications in post-quantum cryptography and cryptanalysis. Recently, Esser and Santini explored in depth the connection between the regular (RSD) and classical syndrome decoding problems. They have observed that while RSD to SDP reductions are known (in any parametric
-
Isogeometric methods for thermal analysis with spatially varying thermal conductivity under general boundary and other constraints Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-28 Zulfiqar Ali, Weiyin Ma
This paper presents some results on steady-state thermal analysis with variable thermal conductivity under general boundary conditions and other internal constraints using isogeometric methods. Non-Uniform Rational B-splines (NURBS) serve as basis functions for representing both the geometry of the physical domains and the solution. While both isogeometric collocation method and Galarkin formulation
-
Symmetric (15, 8, 4)-designs in terms of the geometry of binary simplex codes of dimension 4 Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-24 Mark Pankov, Krzysztof Petelczyc, Mariusz Żynel
Let \(n=2^k-1\) and \(m=2^{k-2}\) for a certain \(k\ge 3\). Consider the point-line geometry of 2m-element subsets of an n-element set. Maximal singular subspaces of this geometry correspond to binary simplex codes of dimension k. For \(k\ge 4\) the associated collinearity graph contains maximal cliques different from maximal singular subspaces. We investigate maximal cliques corresponding to symmetric
-
Electromagnetic scattering sensitivity analysis for perfectly conducting objects in TM polarization with isogeometric BEM Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-24 Leilei Chen, Chengmiao Liu, Haojie Lian, Wenxiang Gu
This study proposes a sensitivity analysis framework for Transverse Magnetic polarized electromagnetic scattering problems, with a focus on Perfectly Electric Conductors (PEC). To enable seamless integration of Computer-Aided Design and Computer-Aided Engineering, the isogeometric boundary element method based on the Galerkin scheme is employed. This method utilizes Non-Uniform Rational B-splines to
-
A cell-based smoothed radial point interpolation method applied to lower bound limit analysis of thin plates Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-24 Shenshen Chen, Hao Dong, Xing Wei, Fengtao Liu
This paper proposes a novel numerical method based on the cell-based smoothed radial point interpolation method (CS-RPIM) combined with second-order cone programming to perform lower bound limit analysis of elastic-perfectly-plastic thin plates, using only deflection as nodal variable. The problem domain is initially discretized using a simple triangular background mesh, where each triangular cell
-
Bi-material V-notch fracture analysis in functionally graded materials Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-23 C.Y. Fu, Y. Yang, P.H. Wen, J. Sladek, V. Sladek
The finite block method (FBM) in the Cartesian coordinate system is developed to deal with the problems of the bi-materials V-notches in functionally graded materials (FGM) under static and dynamic loads. The first partial differential matrix is established via Lagrange series. Higher-order derivatives can be deduced from the first order partial differential matrix directly. In order to obtain the
-
Green’s function representation and numerical approximation of the two-dimensional stochastic Stokes equation Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-23 Jie Zhu, Yujun Zhu, Ju Ming, Xiaoming He
This paper investigates the two-dimensional unsteady Stokes equation with general additive noise. The primary contribution is the derivation of the relevant estimate of Green’s tensor, which provides a fundamental representation for the solution of this stochastic equation. We demonstrate the crucial role of Green’s function in understanding the stability and perturbation characteristics of the stochastic
-
Cubic Dirac operator for $$U_q({\mathfrak {sl}}_2)$$ Adv. Appl. Clifford Algebras (IF 1.1) Pub Date : 2025-01-22 Andrey Krutov, Pavle Pandžić
We construct the q-deformed Clifford algebra of \(\mathfrak {sl}_2\) and study its properties. This allows us to define the q-deformed noncommutative Weil algebra \(\mathcal {W}_q(\mathfrak {sl}_2)\) for \(U_q(\mathfrak {sl}_2)\) and the corresponding cubic Dirac operator \(D_q\). In the classical case this was done by Alekseev and Meinrenken in 2000. We show that the cubic Dirac operator \(D_q\) is
-
A new boundary integral method for investigating the roughness scaling law of heterogeneous interfacial fracture Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-22 Wei Du, Xiaohua Zhao, Wei Jiang, Yongcheng Guo, Jinping Fu, Zhen Wang
A new semi-analytical and semi-numerical approach is proposed to investigate the scaling law of in-plane roughness due to the fracture of a heterogeneous interface involving spatial correlation of disorders. The model is considered as a composite structure composed of two cantilever rectangular plates bonded with an interfacial layer. Based on the theory of solid mechanics, the dynamic process of interfacial
-
Seismic response analysis of marine undulating sites based on indirect boundary element method Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-22 Zhong-Xian Liu, Xiang Liu, Tian-Chun Ai, Jia-Wei Zhao, Lei Huang
The seafloor is mostly made up of soft silt, and seismic waves collide with particles before scattering during their propagation. Moreover, the ocean terrain includes basins, seamounts, islands and reefs, contributing to the intricate propagation of seismic waves in seawater. This study proposes a two-dimensional wave simulation algorithm for the marine seismic site effect based on the indirect boundary
-
A fully cell-based immersed smoothed finite element method with the mean value coordinate projection using quadrilateral elements for fluid-structure interaction Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-22 Shuhao Huo, Hengzhi Wang, Zhipeng Li, Zhiqiang Li, Chen Jiang, Guirong Liu
In this work, an effective and stable immersed cell-based smoothed finite element method (ICS-FEM) together with mean value coordinate (MVC) projection using quadrilateral elements is presented for 2D fluid-structure interaction (FSI) problems. In an immersed-based algorithm, the entire system can be divided into three components: large-deformed nonlinear structure, incompressible viscous fluid, and
-
The Wigner Little Group for Photons is a Projective Subalgebra Adv. Appl. Clifford Algebras (IF 1.1) Pub Date : 2025-01-21 Moab Croft, Hamish Todd, Edward Corbett
This paper presents the Geometric Algebra approach to the Wigner little group for photons using the Spacetime Algebra, incorporating a mirror-based view for physical interpretation. The shift from a point-based view to a mirror-based view is a modern movement that allows for a more intuitive representation of geometric and physical entities, with vectors and their higher-grade counterparts viewed as
-
Flexoelectricity in bimaterials via boundary element analysis Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-20 Arezoo Hajesfandiari
A boundary element formulation is developed based on consistent couple stress flexoelectricity. The formulation is used here to study the flexoelectric response of a two-dimensional isotropic bimaterial consisting of a flexoelectric dielectric thin film on a non-flexoelectric dielectric material. Flexoelectric phenomenon is a coupled problem of mechanical and electrostatic effects, each specified by
-
H-B Theorems of Cauchy Integral Operators in Clifford Analysis Adv. Appl. Clifford Algebras (IF 1.1) Pub Date : 2025-01-18 Yufeng Wang, Zhongxiang Zhang
In this article, we verify the boundedness of the Cauchy type integral operators under the generalized Hölder norm in Clifford analysis, which are called H-B theorems of the Cauchy integral operators in Clifford analysis. We first demonstrate the generalized 2P theorems and the generalized Muskhelishvili theorem in Clifford analysis by Du’s method derived from Du (J Math (PRC) 2(2):115–12, 1982) and
-
Extension of three-dimensional discontinuous deformation analysis for solid block motions in predefined fluid field Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-18 Xinyan Peng, Xuanmei Fan, Pengcheng Yu, Guangqi Chen, Mingyao Xia, Yingbin Zhang, Xiao Cheng, Chao Liang
Solid–fluid numerical simulations involving open channels are usually complicated, especially for large solid displacements. An extended three–dimensional discontinuous deformation analysis (3D DDA) method incorporating depth-integrated two-dimensional fluid dynamics was proposed to evaluate solid movement considering fluid actions. In this method, two types of fluid forces on solid blocks, buoyancy
-
Symplectic time-domain finite element method for solving dynamic impact and crack propagation problems in peridynamics Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-18 Yajing Gong, Yong Peng, Shuguang Gong
This paper proposes a novel algorithm, the symplectic time-domain finite element method (ST-FEM), for solving the equation of motion within the peridynamics (PD) framework, with a focus on dynamic impact problems and crack propagation prediction. An iterative scheme for the PD equation of motion is established using the time-domain finite element method (T-FEM), with symplectic conservation of the
-
Modeling of rarefied gas flows in streamwise periodic channels: Application of coupled constitutive relations and the method of fundamental solutions Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-18 Ankit Farkya, Anirudh Singh Rana
Periodic structures are ubiquitous in nature and engineering, offering unique properties that inspire a range of applications. This paper explores the mathematical modeling of periodic structures in rarefied gas flows using the coupled constitutive relations (CCR) model. The method of fundamental solutions (MFS), known for its meshfree nature and computational efficiency, is utilized as a numerical
-
Efficient information-theoretic distributed point functions with general output groups Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-16 Junru Li, Pengzhen Ke, Liang Feng Zhang
An n-server information-theoretic Distributed Point Function (DPF) allows a client to secret-share a point function \(f_{\alpha ,\beta }(x)\) with domain [N] and output group \(\mathbb {G}\) among n servers such that each server learns no information about the function from its share (called a key) but can compute an additive share of \(f_{\alpha ,\beta }(x)\) for any x. DPFs with small key sizes and
-
Additive twisted codes: new distance bounds and infinite families of quantum codes Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-16 Reza Dastbasteh, Petr Lisoněk
We provide a new construction of quantum codes that enables integration of a broader class of classical codes into the mathematical framework of quantum stabilizer codes. Next, we present new connections between twisted codes and linear cyclic codes and provide novel bounds for the minimum distance of twisted codes. We show that classical tools such as the Hartmann–Tzeng minimum distance bound are
-
Rate-improved multi-permutation codes for correcting a single burst of stable deletions Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-16 Xiang Wang, Fang-Wei Fu
Permutation and multi-permutation codes have been widely studied due to their potential applications in communications and storage systems, especially in flash memory. In this paper, we consider balanced multi-permutation codes correcting a single burst of stable deletions of length t and length at most t, respectively. Based on the properties of burst stable deletions and stabilizer permutation subgroups
-
Blocking sets of secant and tangent lines with respect to a quadric of $$\text{ PG }(n,q)$$ Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-17 Bart De Bruyn, Puspendu Pradhan, Binod Kumar Sahoo
For a set \({\mathcal {L}}\) of lines of \(\text{ PG }(n,q)\), a set X of points of \(\text{ PG }(n,q)\) is called an \({\mathcal {L}}\)-blocking set if each line of \({\mathcal {L}}\) contains at least one point of X. Consider a possibly singular quadric Q of \(\text{ PG }(n,q)\) and denote by \({\mathcal {S}}\) (respectively, \({\mathcal {T}}\)) the set of all lines of \(\text{ PG }(n,q)\) meeting
-
Multicomplex Ideals, Modules and Hilbert Spaces Adv. Appl. Clifford Algebras (IF 1.1) Pub Date : 2025-01-17 Derek Courchesne, Sébastien Tremblay
In this article we study some algebraic aspects of multicomplex numbers \({\mathbb {M}}_n\). For \(n\ge 2\) a canonical representation is defined in terms of the multiplication of \(n-1\) idempotent elements. This representation facilitates computations in this algebra and makes it possible to introduce a generalized conjugacy \(\Lambda _n\), i.e. a composition of the n multicomplex conjugates \(\Lambda
-
Reduced-order prediction model for the Cahn–Hilliard equation based on deep learning Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-17 Zhixian Lv, Xin Song, Jiachen Feng, Qing Xia, Binhu Xia, Yibao Li
This study presents an end-to-end deep learning framework for nonlinear reduced-order modeling and prediction, combining Variational Autoencoders (VAE) for feature extraction and Long Short-Term Memory (LSTM) networks for temporal prediction. The framework simplifies the modeling process by integrating multiple steps into a unified architecture, improving both design and training efficiency. The VAE
-
Isogeometric Reissner–Mindlin shell analysis for post-buckling of piezoelectric laminated shell panels Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-17 Tao Liu, Wenxiang Xu, Yuhang Wang, Shanshan Cai, Xiaolei Hu, Jiming Gu
Isogeometric analysis (IGA) employs NURBS basis functions as shape functions, possessing geometric accuracy, high precision and high-order continuity, thereby making it very suitable for analyzing complex curved surface structures. By taking advantage of these benefits, this paper presents a geometrically nonlinear electro-mechanical coupled IGA model for accurately predicting the post-buckling behavior
-
Oblique wave interaction with a floating dock in the presence of inverted trapezoidal pile-rock breakwaters Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-17 M. Marshal Jins, K.G. Vijay, V. Venkateswarlu, H. Behera
This study evaluates the performance of a pair of inverted trapezoidal pile-rock breakwaters (PRB) placed at a finite distance from the floating dock and connected to a partially reflecting seawall under the oblique wave incidence. The PRB consists of pile shields to protect the rock core from the displacements due to incident wave stroke. The porous boundary conditions, such as continuity of pressure
-
Numerical investigation of wave propagation across rock masses through a nodal-based 3D discontinuous deformation analysis method with contact potential Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-16 Yang Xia, Wenan Wu, Yuyong Jiao, Shanyong Wang
The 3D-NDDACP method (nodal-based 3D discontinuous deformation analysis method with contact potential) shows its capability to simulate discontinuous deformation of rock block systems. Due to the adoption of contact potential for contact treatment and Newmark method for time integration, 3D-NDDACP method inherits attractive advantages from both FEM-DEM and discontinuous deformation analysis (DDA) method
-
On LCD skew group codes Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-13 Mohammed El Badry, Abdelfattah Haily, Ayoub Mounir
In this paper we study skew group codes as left ideals in some skew group rings. We have constructed a large class of LCD codes and a class of an LCD MDS codes. An important interest is given to the construction of idempotents generators of these codes.
-
Designer of codes: a tribute to Jennifer Key Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-12 Vassili C. Mavron, Harold N. Ward
We offer this tribute to our friend and colleague, Jenny Key. After describing her education and career, we comment on her areas of research. The paper concludes with a complete list of her publications.
-
Fatigue analysis of crack propagation in structures with bonded composite repairs Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-13 Lucas S. Moura, Andres F. Galvis, Andres F. Ramirez, Eder L. Abuquerque, Paulo Sollero
Recent growth in the aeronautical and oil industries has increased the demand for efficient repair techniques that offer shorter maintenance periods, greater durability, and reduced costs. Bonded composite repairs have emerged as an excellent solution, enabling the restoration of components without compromising structural integrity. By the first attempt, the coupling of the 3D boundary element method
-
A deferred approach to include solid[formula omitted]liquid phase change effects in the solution of advection–conduction heat transfer problems via the improved element-free Galerkin method Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-13 Juan C. Álvarez-Hostos, Benjamín A. Tourn, Alfonso D. Bencomo, Mauricio Mascotto, Javier A. Zambrano-Carrillo, Alirio J. Sarache-Piña
In this communication, a novel strategy is presented for addressing advection–conduction problems with solid↔liquid phase change by using a modified implementation of the improved element-free Galerkin (IEFG) method. The approach involves a deferred inclusion of non-linear effects related to temperature-dependent material properties and the latent heat exchanged during phase change, incorporated within
-
Application of defined auxiliary system in the method of layer potentials for solving the stokes flow problem Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-13 Kue-Hong Chen, Yi-Kui Liu, Jeng-Tzong Chen
In this article, we apply an error estimation technique to assess the numerical error of seven kinds of method of layer potentials for solving the Stokes flow problem governed by the biharmonic equation. The new error estimation technique allows us to estimate numerical errors in situations where analytical solutions are not available. Additionally, it enables us to determine the optimal solution for
-
Deep-neural-network-based framework for the accelerating uncertainty quantification of a structural–acoustic fully coupled system in a shallow sea Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-11 Leilei Chen, Qingxiang Pei, Ziheng Fei, Zhongbin Zhou, Zhongming Hu
To systematically quantify certain uncertainties within the vibro-acoustic coupling problems, we propose a framework for sampling the acceleration and uncertainty quantification based on a Deep Neural Network (DNN). Coupling the Finite Element Method (FEM) and Boundary Element Method (BEM) with Catmull–Clark subdivision surfaces to generate samples for DNN training and testing. Constructing various
-
The overload phenomenon in dynamic Brazilian disc: Insights from Voronoi-based discontinuous deformation analysis Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-09 Kaiyu Zhang, Feng Liu, Jun Zhu, Xuehua Zhao, Aiming Zhang, Yanbing Zhao, Zijun Hu
The tensile strength of rocks is a critical information in the design of operational blasting and support systems in rock engineering. However, it is important to note that in rock dynamic, the measured tensile strength in the BD test may be higher than the real value due to the overload effect. In this study, the overload effect and dynamic tensile strength correction are investigated by comparing
-
A coupled boundary element-finite element solution for pile groups embedded in layered saturated soils under transient loadings Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-09 Zhi Yong Ai, Yi Xuan Zhang, Yong Zhi Zhao, Wei Tao Ji
Pile groups in saturated soils frequently encounter transient dynamic loads from earthquakes, waves, and winds. This study uses the coupled boundary element method-finite element method (BEM-FEM) to investigate the transient interaction between pile groups and layered saturated soils. The analytical layer element solution for the stratified saturated soils is used as the kernel function to establish
-
Multi-patch IGA associated with Nitsche’s method for morphogenesis of complex free-form surface Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-09 Ziling Song, Tiantang Yu, Lin Wang, Tinh Quoc Bui
The analysis of complex multipatch structures has been solved with numerical tools, however, isogeometric shape optimization has not yet been applicable for designing free-form surface. Benefiting from the key concept of isogeometric analysis (IGA) for integration of design and analysis, a morphogenesis method is presented for shape optimization of complex free-form surfaces, especially built with
-
Ternary isodual codes and 3-designs Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-06 Minjia Shi, Ruowen Liu, Dean Crnković, Patrick Solé, Andrea Švob
Ternary isodual codes and their duals are shown to support 3-designs under mild symmetry conditions. These designs are held invariant by a double cover of the permutation part of the automorphism group of the code. Examples of interest include extended quadratic residues (QR) codes of lengths 14 and 38 whose automorphism groups are PSL(2, 13) and PSL(2, 37), respectively. We also consider Generalized
-
Somewhat homomorphic encryption based on random codes Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-06 Carlos Aguilar-Melchor, Victor Dyseryn, Philippe Gaborit
We present a secret-key encryption scheme based on random rank metric ideal linear codes with a simple decryption circuit. It supports unlimited homomorphic additions and plaintext multiplications (i.e. the homomorphic multiplication of a clear plaintext with a ciphertext) as well as a fixed arbitrary number of homomorphic multiplications. We study a candidate bootstrapping algorithm that requires
-
Efficient surface reconstruction for SPH method and its application to simulation of solid-solid contact and fluid-rigid body interaction Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-06 Yihua Xiao, Duping Zhai, Dongdong Jiang, Jianli Shao
Explicit surface reconstruction is useful for treating challenging boundary-related problems in smoothed particle hydrodynamics (SPH), for example, high-accuracy contact treatment. In this work, an efficient local surface reconstruction method (LSRM) is proposed. It first identifies boundary layer particles and then employs the Delaunay triangulation technique to reconstruct explicit surfaces from
-
RYDE: a digital signature scheme based on rank syndrome decoding problem with MPC-in-the-Head paradigm Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-04 Loïc Bidoux, Jesús-Javier Chi-Domínguez, Thibauld Feneuil, Philippe Gaborit, Antoine Joux, Matthieu Rivain, Adrien Vinçotte
We present a signature scheme based on the syndrome decoding (SD) problem in rank metric. It is a construction from Multi-Party Computation (MPC), using a MPC protocol which is a slight improvement of the linearized polynomial protocol used in Feneuil (Cryptology ePrint Archive, Report 2022/1512, 2022), allowing to obtain a zero-knowledge proof thanks to the MPCitH (MPC-in-the-Head) paradigm. We design
-
Quantum sieving for code-based cryptanalysis and its limitations for ISD Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-02 Lynn Engelberts, Simona Etinski, Johanna Loyer
Sieving using near-neighbor search techniques is a well-known method in lattice-based cryptanalysis, yielding the current best runtime for the shortest vector problem in both the classical and quantum setting. Recently, sieving has also become an important tool in code-based cryptanalysis. Specifically, a variant of the information-set decoding (ISD) framework, commonly used for attacking cryptographically
-
Fully selective opening secure IBE from LWE Des. Codes Cryptogr. (IF 1.4) Pub Date : 2025-01-03 Dingding Jia, Haiyang Xue, Bao Li
Selective opening security ensures that, when an adversary is given multiple ciphertexts and corrupts a subset of the senders (thereby obtaining the plaintexts and the senders’ randomness), the privacy of the remaining ciphertexts is still preserved. Previous selective opening secure IBE schemes encrypt messages bit-by-bit, or only achieve selective-id security. In this paper, we present the first
-
An element mapping material point method for tracking interfaces in transient nonlinear heat conduction with sources Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-03 Peiwen Wu, Weidong Chen, Shengzhuo Lu, Jingxin Ma, Mingwu Sun, Bo Sun, Shibo Wu
The Generalized Interpolation Material Point method (GIMP), based on both material-point discretization and Eulerian space meshing, which is appropriate for nonlinear problems. However, it is difficult to identify physical boundaries and material interfaces, leading to numerical oscillations in the thermal analysis. Therefore, an Element Mapping Material Point method (EMMP) is proposed to handle with
-
Integrating GA-BEM and polynomial fitting for efficient structural shape optimization Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-03 Alexandre Tachibana dos Santos, José Antonio Marques Carrer
This paper presents a novel simplified approach to achieving smooth boundaries on structural shape optimizations when combining Genetic Algorithms (GA) with the Boundary Element Method (BEM) by applying a simple polynomial fitting technique for boundary smoothing. The methodology focuses on the challenges of reducing material usage while maintaining constructability. The integration of polynomial fitting
-
The radial point interpolation method and mixed-mode energy release rate criterion for crack growth in single lap joints Eng. Anal. Bound. Elem. (IF 4.2) Pub Date : 2025-01-03 D.C. Gonçalves, L.D.C. Ramalho, R.D.S.G. Campilho, J. Belinha
Nowadays, adhesively bonded joints are widely used in high-end industries due to their valuable advantages over traditional joining techniques. Nevertheless, predicting the mechanical behaviour of adhesively bonded joints with accuracy and efficiency still represents a major challenge reducing structure weight, material usage, and computational cost. In this work, a fracture propagation algorithm based