Tuler-Butcher模型中考虑已有损伤影响的一种修正

蒋东; 李永池; 郭扬

doi:10.11858/gywlxb.2009.04.006

Tuler-Butcher模型中考虑已有损伤影响的一种修正

doi: 10.11858/gywlxb.2009.04.006

中国科学技术大学近代力学系，安徽合肥 230027

详细信息

通讯作者:
李永池

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出版历程
- 收稿日期: 2008-10-19
- 修回日期: 2009-04-09
- 刊出日期: 2009-08-15

Modification of Tuler-Butcher Model with Damage Influence

Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China

More Information

Corresponding author: LI Yong-Chi

摘要

摘要: 基于Tuler-Butcher模型提出了一种修正的损伤演化模型。在此基础上，将新的损伤演化方程编入一维Lagrange有限差分动力学程序，对45钢和铝锂合金两种延性金属材料的平板正碰撞层裂实验进行了数值模拟，计算结果与实验结果吻合得较好，验证了本模型的正确性。
- 延性金属 /
- 层裂准则 /
- 损伤演化 /
- 数值模拟
Abstract: A modificatin of Tuler-Butcher model including damage influence was presented, which was incorporated into a hydrodynamic one-dimensional finite difference computer code, to simulate the process of spall fracture of 45 steel and Al-Li alloy. The calculated results are in good agreement with experimental data, and shows the correctness of the model.
- ductile metals /
- spallation criterion /
- damage evolution /
- numerical simulation

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参考文献(24)

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