Trabecular bone possesses a complex hierarchical structure of plate- and strut-like elements, which is analogous to structural systems encountered in engineering practice. In this work, key structural features of trabecular bone are mimicked to uncover effective energy dissipation mechanisms under blast loading. To this end, several key design parameters were identified to develop a bone-like unit cell. A computer script was then developed to automatically generate bone-like finite element models with many combinations of these design parameters, which were simulated under blast loading. The optimal structure was identified and its performance was benchmarked against traditional engineered cellular structures, including those with hexagonal, re-entrant and square cellular geometries. The bone-like structure showed superior performance over its engineered counterparts using the peak transmitted reaction force and energy dissipation as the key performance criteria.

骨小梁具有板状和支柱状元素的复杂层次结构，类似于工程实践中遇到的结构系统。在这项工作中，模拟了小梁骨的关键结构特征，以揭示爆炸载荷下的有效能量耗散机制。为此，确定了几个关键的设计参数来开发类骨单元。然后开发了一个计算机脚本来自动生成具有这些设计参数的许多组合的类骨有限元模型，这些模型在爆炸载荷下进行模拟。确定了最佳结构，并将其性能与传统工程蜂窝结构进行了基准测试，包括具有六边形、重入式和方形蜂窝几何形状的结构。