The present paper is devoted to numerical investigation on fracture parameters of cracked shells subjected to out-of-plane loading using ordinary state-based peridynamics (PD). The nonlocal deformation gradient and equivalent domain integral are introduced to evaluate fracture parameters. To reduce the surface effect and obtain more accurate results, the energy method and volume correction algorithm are considered. Meanwhile, the adaptive dynamic relaxation technique is employed to obtain steady-state solutions. From comparisons between PD results and reference solutions, the proposed PD shell model successfully evaluates fracture parameters in both single- and mixed-mode loading conditions.

本文致力于使用普通的基于状态的绕动力学（PD）对平面外载荷作用下的破裂壳的断裂参数进行数值研究。引入非局部变形梯度和等效域积分来评估断裂参数。为了减少表面效应并获得更准确的结果，考虑了能量方法和体积校正算法。同时，采用自适应动态松弛技术获得稳态解。通过PD结果与参考解决方案之间的比较，所提出的PD壳模型成功地评估了单模和混合模式加载条件下的断裂参数。