In this paper, we investigate some micromechanical aspects of elasto-plasticity in heterogeneous geomaterials. The aim is to upscale the elasto-plastic behavior for a representative volume of the material which is indeed a very challenging task due to the irreversible deformations involved. Considering the plastic strains as eigen-strains allows us to employ the powerful tools offered by Continuum Micromechanics which are mainly developed for upscaling of eigen-stressed elastic media. The validity of such eigen-strain based formulation of multiscale elasto-plasticity is herein examined by comparing its predictions against Finite Element (FE) simulations.
翻译:在本文中,我们调查了多种地质材料中等离子体溶解性的某些微机械方面,目的是提升具有代表性的材料的弹性塑料行为,由于不可逆的变形,这确实是一项非常艰巨的任务。将塑料菌株视为树脂质,使我们能够利用环球微机械提供的强大工具,这些工具主要是为扩大受密封的乙基因弹性介质而开发的。目前,通过比较其针对微量元素(FE)的模拟所作的预测,对基于乙基因的多规模的埃氏体塑性制剂的有效性进行了研究。