著者

飛田 善雄 加茂 謙一

出版者

Japan Society of Civil Engineers

雑誌

応用力学論文集 (ISSN:13459139)

巻号頁・発行日

vol.5, pp.295-306, 2002-08-28 (Released:2010-03-17)

参考文献数

17

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The incrementally nonlinear behaviors of engineering materials, in particular geomaterials, are often reported and formulated into constitutive models. We here discuss the mathematical structure of incrementally nonlinear constitutive models among stress rates, strain rates, and the rate of change in internal variables through the representation theorem of isotropic functions and their matrix forms. As the examples of incrementally nonlinear models we discuss the formulation of the multi-slip model and the modified elasto- plastic model leading to incremental nonlinearity. Both models are evaluated whether they can account for the behavior of sands during the rotation of principal stress axes and found to be satisfactory from a qualitative view point.