A Microscopic Damage Model Considering the Change of Void Shape and Application in the Void Closing

Zhu Ming; Jin Quan-lin

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Article Navigation > Applied Mathematics and Mechanics > 1992 > 13(8): 729-736

Zhu Ming, Jin Quan-lin. A Microscopic Damage Model Considering the Change of Void Shape and Application in the Void Closing[J]. Applied Mathematics and Mechanics, 1992, 13(8): 729-736.

Citation:

Zhu Ming, Jin Quan-lin. A Microscopic Damage Model Considering the Change of Void Shape and Application in the Void Closing[J]. Applied Mathematics and Mechanics, 1992, 13(8): 729-736.

Citation:

Zhu Ming, Jin Quan-lin. A Microscopic Damage Model Considering the Change of Void Shape and Application in the Void Closing[J]. Applied Mathematics and Mechanics, 1992, 13(8): 729-736.

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A Microscopic Damage Model Considering the Change of Void Shape and Application in the Void Closing

Laboratory for Nonlinear Mechanics of Continuous Media, Institute of Mechanics, Chinese Academy of Sciences, Beijing

Received Date: 1991-07-29
Publish Date: 1992-08-15

Abstract

Abstract

A microscopic damage model of ellipsoidal body containing ellipsoidal void for nonlinear matrix materials is developed under a particular coordinate. The change of void shape is considered in this model. The viscous restrained equation obtained from the model is affected by stress ∑_ij, void volume fraction f, material strain rate exponent m as well as the void shape. Gurson's equation is modified from the numerical solution. The modified equation is suitable for the case of nonlinear matrix materials and changeable voids. Lastly, the model is used to analyze the closing process of voids.
- nonlinear material,
- ellipsoidal void,
- void shape,
- void closing

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References(6)

References

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