In the present work, a physically-based finite element model simulating the compression moulding process of cork-based agglomerates is presented. The goal is the prediction of the pre-stress state due to the process and its influence on the macroscopic mechanical properties of the agglomerate. An ad-hoc algorithm simulating the mould filling phase (based on a generalised Voronoi’s tesselation algorithm which is paired with a 2D physics engine) as well as the moulding compression phase is presented. A numerical campaign is conducted to show the effectiveness of the modelling strategy and to assess the influence of packing density on the behaviour of the agglomerate. For all considered cases, the stress-strain and time dependent density curves of the agglomerate show that a high packing density configuration, resulting from a proper selection of particles size mixing, allows obtaining higher tangent moduli than that of natural cork with a lower material density.

在目前的工作中，提出了一种基于物理的有限元模型，该模型模拟了基于软木塞的团块的压缩成型过程。目的是预测由于该过程而产生的预应力状态及其对团聚体宏观机械性能的影响。一个特设提出了一种模拟模具填充阶段的算法（基于与2D物理引擎配对的通用Voronoi镶嵌细分算法）以及成型压缩阶段。开展了一项数值运动，以显示建模策略的有效性并评估堆积密度对团聚体行为的影响。对于所有考虑的情况下，集合体显示应力 - 应变和时间依赖性密度曲线，一个填充密度高的结构，从粒子尺寸混合的适当选择产生，允许获得更高的正切模量高于天然软木的具有较低的材料密度。