The paper is devoted to combined computational and experimental approach for estimation of the elastic mechanical properties of structures made of laminate polymer composite materials (PCM). The computational component of the technique is connected with numerical simulation of mechanical behavior during quasistatic deformation of structures made of PCM. The experimental component is based on measurement of strains by fiber-optic strain sensors (FOSS) with Bragg gratings (FBG sensors), embedded in composite laminates or attached to them. The principle of the proposed method is based on the comparison of the data from FBG sensors, placed in the predetermined control points in the composite structure, with the data of numerical finite element modelling of the same structure. To refine the elastic constants in accordance with the information received from the FBG sensors, an algorithm is proposed, according to which the inverse problems are solved in order to ensure that the numerical and experimental results coincide with the specified accuracy. The implementation of the algorithm is demonstrated on the example case studies.

该论文致力于结合计算和实验方法来估计由层压聚合物复合材料（PCM）制成的结构的弹性机械性能。该技术的计算部分与PCM制造的结构准静态变形过程中的力学行为数值模拟有关。实验组件基于带有布拉格光栅（FBG传感器）的光纤应变传感器（FOSS）对应变的测量，光纤光栅传感器嵌入复合层压板中或附着在层压板上。所提出的方法的原理是基于将来自FBG传感器的数据（放置在复合结构的预定控制点中）与相同结构的数值有限元建模数据进行比较。为了根据从FBG传感器接收的信息细化弹性常数，提出了一种算法，根据该算法解决反问题，以确保数值和实验结果与指定的精度一致。实例研究证明了该算法的实现。