A pressure-dependent elastoplastic damage constitutive model for polymer composites is established, in which the Implicit and Explicit numerical algorithm has been implemented in ABAQUS/Standard in terms of elasto-plastic phase with the aid of UMAT. The off-axis tension/compression tests for T800H/3633,T800S/3900-2B carbon/epoxy laminated composites, and quasi-isotropic compression tests for T800H/3633 laminated composites, have been simulated, in order to validate the efficiencies and accuracies of two algorithms. Additionally, the open-hole compression simulation is employed to analyze the progressive failure of T800H/3633 laminated composites. Compared with the Implicit and Explicit algorithm based the elasto-plastic model, the Explicit algorithm is recommended based on the computational efficiency on the premise of ensuring the numerical convergence, which may be extended to the large-scale engineering applications either statics or dynamics. Furthermore, the open-hole compression simulation of T800H/3633 composites shows the developed elasto-plastic damage model can predict well the stiffness and strength properties of the specimen. The failure mode and deformation of the open-hole specimen of T800H/3633 composites are also briefly discussed.

建立了聚合物复合材料的压力相关弹塑性损伤本构模型，其中在ABAQUS/Standard中借助UMAT实现弹塑性相的隐式和显式数值算法。模拟了T800H/3633、T800S/3900-2B碳/环氧层合复合材料的离轴拉伸/压缩试验，以及T800H/3633层合复合材料的准各向同性压缩试验，以验证其效率和精度。两种算法。此外，采用开孔压缩模拟来分析 T800H/3633 层压复合材料的渐进失效。与基于弹塑性模型的隐式和显式算法相比，在保证数值收敛的前提下，基于计算效率推荐显式算法，可扩展到大规模工程应用，无论是静力学还是动力学。此外，T800H/3633 复合材料的开孔压缩模拟表明，所开发的弹塑性损伤模型可以很好地预测试件的刚度和强度特性。还简要讨论了 T800H/3633 复合材料开孔试样的破坏模式和变形。