3次元ひずみ空間多重せん断モデルにおける初期構造異方性の表現に関する一考察

Abstract

It is known that soil materials such as sand and clay exhibit anisotropy due to the effects of the depositional environment and other factors. Such anisotropy is called inherent (or fabric) anisotropy to distinguish it from stress-induced anisotropy, which is caused by the effects of dilatancy and other factors unique to granular materials under the action of stress. A strain space multiple mechanism model under two-dimensional plane strain conditions has been extended to allow for inherent anisotropy, but inherent anisotropy remains unaccounted for in the three-dimensional constitutive model. Therefore, this paper discusses how to incorporate the effects of inherent anisotropy into the three-dimensional strain space multiple mechanism model.