Simulation of instabilities in non-softening Drucker-Prager plasticity

• Autorzy: Stankiewicz A. , Pamin J.
• Języki publikacji: EN

Abstrakty

EN

The problem of instability and strain localization in a hardening non-associative Drucker-Prager plasticity theory is analyzed. The classical and gradient-enhanced versions of the theory are reviewed and instability indicators are summarized. The regularizing properties of the gradient-enhancement are shown. The classical plane strain biaxial compression test is analyzed in terms of the analytical prediction of ellipticity loss and numerical simulation of the process of shear band formation and evolution. The influence of material model parameters, especially of the degree of non-associativity and the gradient influence,

Słowa kluczowe

EN

Drucker-Prager plasticity theory

PL

teoria plastyczności

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Mechanics and Engineering Sciences
• Rocznik: 2001
• Tom: Vol. 8, No. 1
• Strony: 183--204
• Opis fizyczny: Bibliogr. 37 poz, wykr.

Twórcy

autor

Stankiewicz A.

• Faculty of Civil Engineering, Cracow University of Technology, ul. Warszawska 24, 31-155, Cracow, Poland

autor

Pamin J.

• Faculty of Civil Engineering, Cracow University of Technology, ul. Warszawska 24, 31-155, Cracow, Poland

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