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Prediction of Stress-strain Behavior for Anisotropic Consolidated Compacted Decomposed Granite Soil  

정진섭 (원광대학교 토목환경공학과)
양재혁 (서남대학교)
Publication Information
Magazine of the Korean Society of Agricultural Engineers / v.45, no.2, 2003 , pp. 86-95 More about this Journal
Abstract
During this study, constant stress ratio tests with previous compression anisotropic stress history are performed on compacted decomposed granite soil sampled at Iksan, Jeonbuk. Yielding points are determined from stress-strain curves. The shape and characteristics of compression anisotropic yield curves is examined. In addition, the measured value of yielding curve and stress-strain behavior is predicted by Yasufuku's anisotropic constitutive model based on non-associated flow rule. The main results are summarized as follows : 1) Shape of yielding curves shows almost ellipse but asymmetry with respect to stress path during previous consolidation stress. 2) Yasufuku's anisotropic constitutive model is suitable in evaluation of yielding curves on anisotropic consolidated decomposed granite soil. 3) The predicted stress-strain curve shows reasonable agreement to measured behaviours.
Keywords
Stress-constant test; Anisotropic stress history; Stress path; Yielding Curve; Stress-strain Curve; Yasufuku model;
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