| 冲击加载下材料破坏准则的规范场理论 |
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| 引用本文： | 王克钢,董连科,龙期威.冲击加载下材料破坏准则的规范场理论[J].高压物理学报,1987,1(2). |
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| 作者姓名： | 王克钢 董连科 龙期威 |
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| 作者单位： | 成都科技大学高温高压物理研究所
(王克钢)，中国科学院金属研究所
(董连科)，中国科学院金属研究所(龙期威) |
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| 摘 要： | 本文给出了规范场理论中的Bessel-Hagen散度不变性的广义E. Noether对称定理。应用此定理及缺陷的规范场理论，研究了材料在强动外载作用下的动力学性质，给出了破坏准则的一般公式，此公式定量地反映了缺陷和外载对材料破坏的影响。作为一个例子，研究了强冲击波作用下材料的破坏情况，使一般公式具体化了，而且定量地反映了冲击波的速度、压力和缺陷对材料破坏的影响。
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| 关 键 词： | 冲击加载 裂纹扩展 缺陷 规范场 |
| 收稿时间： | 1987-07-07; |
GAUGE FIELD THEORY OF THE BREAKING CRITERION OF MATERIALS SUBJECTED TO INTENSIVE SHOCK LOADING |
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| Wang Kegang.GAUGE FIELD THEORY OF THE BREAKING CRITERION OF MATERIALS SUBJECTED TO INTENSIVE SHOCK LOADING[J].Chinese Journal of High Pressure Physics,1987,1(2). |
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| Authors: | Wang Kegang |
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| Institution: | 1. Institute of High-Temperature and High-Pressure Physics, Chengdu University of Science and Technology, Chengdu 610065, China;2. Institute of Metal Research, Academia Sinica, Shenyang 110015, China |
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| Abstract: | The paper presents the generalized E. Noether symmetrical theorem providing the Bcssel-Hagen's divergence on gauge field theory is invariance. with the aid of the theorem and gauge field theory of defects, the formula of a breaking criterion of materials subjected to loading is obtained. The formula quantitatively expresses the effect of defects and loading on damage of materials.As a special example, the paper also presents a concrete formula of the breaking criterion of materials under intensive shock loading, and the formula quantitatively expresses the effect of shock speed, pressure and defects on damage of materials. |
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| Keywords: | shock loading crack propagation defect gauge field |
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