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Theoretical Approach to Sand Liquefaction
The paper presents a non associated elasto/viscoplastic constitutive equation for saturated sand. This constitutive equation assumes: instantaneous elastic response, yield surfaces in the sense of viscoplasticity (i.e., after each reloading following with delay in time the loading path), it describes both compressibility and dilatancy and the constitutive equation is non associated (i.e., the viscoplastic potential does not coincide with the yield function). It is shown that in this case a strip in the constitutive domain exists where short-term repeated loading/unloading pulse can produce loosing of stability, i.e., liquefaction.
Theoretical Approach to Sand Liquefaction
The paper presents a non associated elasto/viscoplastic constitutive equation for saturated sand. This constitutive equation assumes: instantaneous elastic response, yield surfaces in the sense of viscoplasticity (i.e., after each reloading following with delay in time the loading path), it describes both compressibility and dilatancy and the constitutive equation is non associated (i.e., the viscoplastic potential does not coincide with the yield function). It is shown that in this case a strip in the constitutive domain exists where short-term repeated loading/unloading pulse can produce loosing of stability, i.e., liquefaction.
Theoretical Approach to Sand Liquefaction
Cristescu, N. D. (author)
Geo-Denver 2000 ; 2000 ; Denver, Colorado, United States
2000-07-24
Conference paper
Electronic Resource
English
Theoretical Approach to Sand Liquefaction
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