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A simple procedure to simulate a smooth elastic-plastic transition in Cam-Clay models |
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| Institution: | 1. Key Laboratory of New Technology for Construction of Cities in Mountain Area, College of Civil Engineering, Chongqing University, Chongqing 400045, China;2. State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining & Technology, China;1. Department of Geotechnical Engineering, Tongji Univ., Shanghai 200092, China;2. Department of Civil Engineering, Shanghai Univ., 149 Yanchang Road, Shanghai 200072, China;1. Department of Mathematics, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong;2. Shanghai Starriver Bilingual School, China;3. Department of Mathematics, Purdue University, 150 N. University Street, West Lafayette, IN, USA |
| Abstract: | A simple procedure is proposed to simulate a smooth transition from elastic to elastoplastic behaviour in Cam-Clay models. The procedure consists of the definition of an external constitutive surface where full yield is assumed, and an internal one that allows the definition of the position in which plastic strains start to appear before the external yield surface is reached. The comparison of the model results with different laboratory tests shows the validity of the procedure. The method considers one additional parameter with regard to a “standard” critical state model, and it can easily be implemented in existing integration modules. |
| Keywords: | Elastoplasticity Critical state models Cam-Clay models Yield surface Overconsolidation CCm"} {"#name":"keyword" "$":{"id":"k0035"} "$$":[{"#name":"text" "_":"Cam-Clay model MCCm"} {"#name":"keyword" "$":{"id":"k0045"} "$$":[{"#name":"text" "_":"Modified Cam-Clay model |
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