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A platform for research: civil engineering, architecture and urbanism
Deformation of strain softening materials
Part I: Objectivity of finite element solutions based on conventional strain softening formulations
Abstract This paper is a continuation of the research initiated by the first author and Z. Mroz [1] during the 1980–1981 period. It is intended as a prelude to a series of articles which extend the concepts and ideas introduced at that time. In the present article, finite element analysis for conventional strain-softening concepts is provided. Sensitivity of the solution to the details of discretization (the type and number of elements) and to the strain-softening rate is discussed. The solutions obtained in this study, though unique in a mathematical sense, prove to be very sensitive to both factors. In order to avoid this sensitivity, the introduction of the geometrical strain-softening effect into the constitutive relation is recommended (after ref. [1]). An extended and generalized version of such a concept will be presented separately.
Deformation of strain softening materials
Part I: Objectivity of finite element solutions based on conventional strain softening formulations
Abstract This paper is a continuation of the research initiated by the first author and Z. Mroz [1] during the 1980–1981 period. It is intended as a prelude to a series of articles which extend the concepts and ideas introduced at that time. In the present article, finite element analysis for conventional strain-softening concepts is provided. Sensitivity of the solution to the details of discretization (the type and number of elements) and to the strain-softening rate is discussed. The solutions obtained in this study, though unique in a mathematical sense, prove to be very sensitive to both factors. In order to avoid this sensitivity, the introduction of the geometrical strain-softening effect into the constitutive relation is recommended (after ref. [1]). An extended and generalized version of such a concept will be presented separately.
Deformation of strain softening materials
Part I: Objectivity of finite element solutions based on conventional strain softening formulations
Pietruszczak, S. (author) / Stolle, D.F.E. (author)
Computers and Geotechnics ; 1 ; 99-115
1985-01-01
17 pages
Article (Journal)
Electronic Resource
English
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