Hypoplastic Constitutive Model for Soils : An Overview
Publish Year: 1393
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICESCONF01_433
تاریخ نمایه سازی: 11 اردیبهشت 1394
Abstract:
Abstract:The so-called hypoelastic constitutive equations, defined by the equation T = h(T, D), are limited by the requirement that h is linear in D. Dropping this requirement and retaining positive homogeneity of the first degree in D leads to a broader class of equations which can be called hypoplastic. Such equations are appropriate to describe the anelastic behaviour of granular materials. Some properties of hypoplastic equations are discussed in this paper including the new notions of yield and bound surfaces which are given a completely different meaning than in classical elastoplasticity. Possibilities to enlarge hypoplasticity towards rate-dependence and more complex intrinsic memory of the material are pointed to.
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Authors
Mehdi Shekarbeigi
Ph.D Student of Civil Engineering (Department of Civil Engineering and Natural Hazard,Boku University) Vienna ,Austria
WEI.WU H Sharafi
Institute of Geotechnical Engineering .University of Boku, Vienna ,Austria School of faculty Engineering , Razi University, kermanshah, Iran
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