| 基于孕育时间的金属材料动态屈服理论(英文) |
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| 作者姓名： | GRUZDKOV A PETROV Y |
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| 作者单位： | 圣彼得堡国立大学数学与力学系;圣彼得堡工程学院信息工程系;俄罗斯科学院机械工程研究所 |
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| 基金项目： | Supported by the National Natural Science Foundation of China(11032001);Russian Foundation for Basic Research(11-01-91217) |
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| 摘 要： | 利用孕育时间准则建立金属从弹性到塑性状态的转变模型,这种方法类似于在St.-Petersburg State University发展起来的脆性固体断裂的结构暂存理论.该方法可使我们建立模型,很好地分析和解释材料随温度变化发生的屈服应力演化、韧-脆性失效转变及其他效应等特殊的力学现象.
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| 关 键 词： | 动态屈服 孕育时间方法 失效准则 |
Incubation-time Based Approach for Dynamic Yielding of Metals |
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| GRUZDKOV A,PETROV Y.Incubation-time Based Approach for Dynamic Yielding of Metals[J].Journal of Ningbo University(Natural Science and Engineering Edition),2012(1):78-82. |
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| Authors: | GRUZDKOV A PETROV Y |
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| Institution: | Department of Mathematics and Mechanics,Saint Petersburg State University,Saint Petersburg 198504,Russia; 2.Department of Information Technology,Saint Petersburg Technological Institute,Saint Petersburg 190013,Russia; 3.Institute of Mechanical Engineering of Russian Academy of Science,Saint Petersburg 199178,Russia) |
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| Abstract: | Transition of the materials from elastic to plastic state is modeled by incubation-time based criterion.This approach is similar to the structural-temporal theory for brittle solids fracture developed in St.-Petersburg State University.This approach allow us to model anomalous behavior of yield stress in case of elevated temperature,brittle-to-ductile failure mode transition and some other effects. |
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| Keywords: | dynamic yielding incubation-time approach failure criteria |
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