Simulation of stress paths derived from FEM analysis in triaxial tests

• Autorzy: Kowalska M.
• Języki publikacji: EN

Abstrakty

EN

Reliable estimation of geotechnical parameters is often based on reconstruction of a complete loading process of subsoil on a specimen in laboratory tests. Unfortunately laboratory equipment available in many laboratories is sometimes limited to just a triaxial apparatus - the use of which generates difficulties whenever a non-axisymmetric problem is analysed. The author suggests two simple operations that may be done to improve the quality of simulation in triaxial tests. The first one is based on the use of triaxial extension along the segments of the stress path p’-q-θ for which the Lode’s angle values are positive. The second one consists in a modification of the equivalent stress value in such a way that the current stress level in the specimen complies with results of FEM analysis.

Słowa kluczowe

EN

laboratory testing; numerical modelling; stress path; triaxial test

PL

badanie laboratoryjne; modelowanie numeryczne; ścieżka naprężenia; badanie trójosiowe

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2013
• Tom: Vol. 59, nr 1
• Strony: 119--129
• Opis fizyczny: Bibliogr. 18 poz., il.

Twórcy

autor

Kowalska M.

• Silesian University of Technology, Faculty of Civil Engineering, Department of Geotechnics, Gliwice

Bibliografia

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