Numerical modelling on the compressive response of self-healing polymer foams embedded with novel, bilayered alginate capsules was developed based on the coupled pore fluid diffusion and stress simulations. Micromechanical models were developed to link the damage variable to permeability as well as the saturation to the capillary pressure within damaged polymer foams. These micromechanical models were calibrated against experimental measurements and were implemented into the coupled simulations. To give physical insight into how the damage evolution coupled with the mass conservation, an illustrative example was presented for one-dimensional (1D) compression problem. Two-dimensional (2D) detailed finite element simulations were conducted to interpret the experimental findings. It was demonstrated that the numerical study could capture the main features of the self-healing process. The predicted healing efficiency has good agreement with that measured by the experiments. Based on the numerical models, parameter study was conducted to understand the effects of the key design parameters of the healing system.

基于耦合的孔隙流体扩散和应力模拟，建立了嵌有新型双层藻酸盐胶囊的自愈聚合物泡沫的压缩响应的数值模型。开发了微力学模型，以将破坏变量与渗透率以及饱和度与破坏的聚合物泡沫内的毛细压力联系起来。这些微机械模型针对实验测量进行了校准，并被实现到耦合仿真中。为了深入了解损伤演化与质量守恒的关系，给出了一个一维（1D）压缩问题的示例。进行了二维（2D）详细的有限元模拟，以解释实验结果。结果表明，数值研究可以捕捉到自我修复过程的主要特征。预测的治愈效率与实验测得的结果有很好的一致性。基于数值模型，进行了参数研究，以了解愈合系统关键设计参数的效果。