This article presents a numerical study on the mechanical behaviour of damaged micro-lattice (ML) blocks submitted to uniaxial compressible loads. The numerical model is implemented in the commercial finite-element code Abaqus/Standard. From the finite-element model, the initial stiffness and the Yield stress of ML blocks are calculated. The damage in ML blocks is modelled as manufacturing defects, that are included in the ML structures using a random algorithm implemented in MatLab. The numerical model is validated with experimental data from uniaxial compression tests carried out on ML intact blocks by other authors. The analysis of the mechanical behaviour of ML blocks is presented in terms of variations of damage percentage, cell type and cell size.

本文提供了对承受单轴可压缩载荷的受损微晶格（ML）块力学行为的数值研究。数值模型在商业有限元代码Abaqus / Standard中实现。从有限元模型中，计算出ML块的初始刚度和屈服应力。ML块中的损坏被建模为制造缺陷，使用MatLab中实现的随机算法将其包含在ML结构中。使用其他作者在ML完整块上进行的单轴压缩测试得到的实验数据验证了该数值模型。ML块的机械行为分析是根据损伤百分比，单元类型和单元大小的变化来表示的。