The void-size effect on plastic flow localization in the Gurson model
β Scribed by Wen Jie; Huang Yonggang; Hwang Keh-Chih
- Publisher
- The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences
- Year
- 2004
- Tongue
- English
- Weight
- 537 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0567-7718
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Plastic flow localization in porous elastic-viscoplastic solids is analyzed with an emphasis on the effects of material rate sensitivity and plastic potential surface curvature. The effect of rate sensitivity is included in a material model that accounts for a change of yield surface curvature in a
The effect of size on the mechanical behavior and the void growth rate in a voided single crystal was studied using two-dimensional discrete dislocation dynamics. The simulations were based on the methodology developed by Van der Giessen and Needleman [Van der Giessen E, Needleman A. Modell Simul Ma