The compressive characteristics of egg-box energy-absorbing cores composed of plain-weave carbon/epoxy composites were analysed via a finite-element analysis (FEA) and experimentally validated. Through draping experiments and simulations, material behavioural aspects, including wrinkle generation according to the initial draping orientation (0° ([0/90]_T), 30° ([30/-60]_T), and 45° ([±45]_T)) of uncured prepregs were estimated. The compressive behaviour and energy-absorbing capability of the cured egg-box core were estimated via FEA and experimentally validated. To improve the simulation accuracy, the fibre orientation-mapping technique as well as models for modulus degradation and progressive failure were developed and applied in the FEA. Using the abovementioned simulation technique, the crushing behaviour of the egg-box energy-absorbing core was predicted, and the corresponding failure mode under compression was estimated successfully.

通过有限元分析（FEA）分析了由平纹碳/环氧复合材料组成的蛋盒吸能芯的压缩特性，并进行了实验验证。通过悬垂实验和模拟，材料的行为方面包括根据初始悬垂方向（0°（[0/90] _T），30°（[30 / -60] _T）和45°（[±45] ] _T））未固化的预浸料。通过有限元分析估算了鸡蛋盒芯的压缩性能和能量吸收能力，并进行了实验验证。为了提高仿真精度，开发了纤维定向映射技术以及模量退化和渐进破坏模型，并将其应用于有限元分析中。利用上述仿真技术，对蛋盒吸能芯的破碎行为进行了预测，并成功地估算了压缩下相应的破坏模式。