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EXTENDED TANGENTIAL-SUBLOADING SURFACE MODEL FOR GENERAL LOADING BEHAVIOR OF SOILS : APPLICATION TO NONPROPORTIONAL LOADINGS
Setouchi, Hideki
Hashiguchi, Koichi
Shikanai, Takeshi
Okayasu, Takashi
open access
本文データは学協会の許諾に基づきCiNiiから複製したものである
公益社団法人地盤工学会 \n本文データは公益社団法人地盤工学会の許諾に基づきCiNiiから複製したものである
elastoplasticity
nonproportionalloading
subloading surface model
tangential stress rate
yield surface(IGC: El3)
The conventional elastoplastic model premising that the interior of yield surface is a purely elastic domain is incapable of describing the plastic deformation by the rate of stress inside the yield surface. Thus, it is inapplicable to the description of cyclic loading behavior. Besides, the traditional elastoplastic model is independent of the stress rate component tangential to the yield surface. Therefore, it predicts an unrealistically high stiffness modulus for nonproportionalloading process deviating significantly from proportional one. The extended tangential-subloading surface model proposed by Hashiguchi and Tsutsumi (2001) would be capable of describing the cyclic loading behavior and the inelastic strain rate induced by the stress rate component tangential to the subloading surface. In this article, the extended tangential-subloading surface model is applied to the prediction of deformation behavior of sands subjected to various loading ranging from proportional to cyclic nonproportionalloading. The validity is verified by comparing with the various test data. Then, it is revealed that the incorporation of the strain rate due to the stress rate component tangential to the subloading surface is of importance for the description of nonproportional loading behavior.
論文
公益社団法人地盤工学会
The Japanese Geotechnical Society
2006-08
eng
journal article
VoR
http://hdl.handle.net/20.500.12000/36946
http://hdl.handle.net/20.500.12000/36946
https://u-ryukyu.repo.nii.ac.jp/records/2008688
http://ci.nii.ac.jp/naid/130004552270
0038-0806
Soils and Foundations
46
4
449
463
https://u-ryukyu.repo.nii.ac.jp/record/2008688/files/Vol46No4p449.pdf