The paper deals with the effect of stress state on inelastic deformation and failure behavior of ductile solids. The continuum model takes into account stress-state-dependence of the damage and failure criteria with different branches corresponding to different micro-mechanical mechanisms depending on the stress triaxiality and the Lode parameter. Basic material parameters are identified using various tests with smooth and differently notched tension and shear specimens. To get more insight in the complex damage and failure mechanisms on the micro-scale additional series of three-dimensional micro-mechanical numerical analyses of void-containing unit cells have been performed. These calculations cover a wide range of stress triaxialities and Lode parameters in tension, shear and compression domains. The numerical results are used to discuss general trends, to develop equations for the damage and failure criteria, and to identify corresponding parameters of the continuum model.
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ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis
July 2–4, 2012
Nantes, France
Conference Sponsors:
- International
ISBN:
978-0-7918-4484-7
PROCEEDINGS PAPER
A Continuum Damage and Failure Model Based on Stress-State-Dependent Criteria
Michael Brünig,
Michael Brünig
Universität der Bundeswehr München, Neubiberg, Germany
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Steffen Gerke,
Steffen Gerke
Universität der Bundeswehr München, Neubiberg, Germany
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Vanessa Hagenbrock
Vanessa Hagenbrock
Universität der Bundeswehr München, Neubiberg, Germany
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Michael Brünig
Universität der Bundeswehr München, Neubiberg, Germany
Steffen Gerke
Universität der Bundeswehr München, Neubiberg, Germany
Vanessa Hagenbrock
Universität der Bundeswehr München, Neubiberg, Germany
Paper No:
ESDA2012-82964, pp. 573-581; 9 pages
Published Online:
August 12, 2013
Citation
Brünig, M, Gerke, S, & Hagenbrock, V. "A Continuum Damage and Failure Model Based on Stress-State-Dependent Criteria." Proceedings of the ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. Volume 1: Advanced Computational Mechanics; Advanced Simulation-Based Engineering Sciences; Virtual and Augmented Reality; Applied Solid Mechanics and Material Processing; Dynamical Systems and Control. Nantes, France. July 2–4, 2012. pp. 573-581. ASME. https://doi.org/10.1115/ESDA2012-82964
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