The work presents the numerical implementation of the multiplicative hyperelastic-based Extended Subloading Surface model. The theoretical development of the constitutive equations of the unconventional plasticity theory has already been formulated in the literature. However, its application to finite element simulations has been not proposed yet. In particular, this paper discusses in detail the adaptation of the constitutive equation from a theoretical to a computation point of view, highlighting the numerical strategies adopted by the authors. Moreover, a comparison of the predictive response between the additive hypo- and multiplicative hyperelastic-based versions of the Extended Subloading Surface model is offered through a series of numerical examples.

该工作介绍了基于乘法超弹性的扩展子加载表面模型的数值实现。非常规塑性理论的本构方程的理论发展已经在文献中阐述。然而，尚未提出将其应用于有限元模拟。特别是，本文详细讨论了本构方程从理论到计算的适应，突出了作者采用的数值策略。此外，通过一系列数值示例比较了基于加性超弹性和乘性超弹性版本的扩展子加载表面模型之间的预测响应。