Gradient-enhanced damage model for large deformations of elastic-plastic materials

• Autorzy: Wcisło, B. , Pamin, J. , Kowalczyk-Gajewska, K.
• Konferencja: Solid Mechanics Conference (38 ; 27-31.08.2012 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

This paper deals with the development of a family of gradient-enhanced elasticity-damage-plasticity models for the simulation of failure in metallic and composite materials. The model incorporates finite deformations and is developed with the assumption of isotropy and isothermal conditions. The gradient enhancement applied to the damage part of the model aims at removing pathological sensitivity to the finite element discretization which can occur due to material softening. The attention is focused on the algorithmic aspects and on the implementation of the model using AceGen tool. The numerical verification tests of the described model are performed using the Mathematica-based package AceFEM. Particularly, uniaxial tension test for a bar with a variable cross-section and tension of a perforated plate are examined.

Słowa kluczowe

EN

large strains; damage; plasticity; gradient enhancement; AceGen package

• Czasopismo: Archives of Mechanics
• Rocznik: 2013
• Tom: Vol. 65, nr 5
• Strony: 407--428
• Opis fizyczny: Bibliogr. 16 poz., rys. kolor., wykr.

Twórcy

autor

Wcisło, B.

• Institute for Computational Civil Engineering Cracow University of Technology Warszawska 24 31-155 Kraków, Poland,

autor

Pamin, J.

• Institute for Computational Civil Engineering Cracow University of Technology Warszawska 24 31-155 Kraków, Poland ,

autor

Kowalczyk-Gajewska, K.

• Institute of Fundamental Technological Research Polish Academy of Sciences Pawińskiego 5B 02-106 Warszawa, Poland,

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