| 塑性流动法则的相关性 |
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| 引用本文： | 冷飞,林皋. 塑性流动法则的相关性[J]. 哈尔滨工业大学学报, 2006, 38(6): 934-936 |
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| 作者姓名： | 冷飞 林皋 |
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| 作者单位： | 大连理工大学,海岸及近海工程国家重点实验室,大连,116024;大连理工大学,海岸及近海工程国家重点实验室,大连,116024 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 介绍、分析和比较由最大耗散法则与热力学原理两种方法推导得到的率无关塑性变形流动法则的形式,得出了塑性流动法则总是与屈服函数有关,可由屈服函数和耗散函数确定材料进入塑性状态后不可恢复应变的结论.由此得到的流动法则,避免了不相关流动法则中塑性势函数意义不清的缺点.
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| 关 键 词： | 塑性 流动法则 最大耗散法则 热力学原理 |
| 文章编号： | 0367-6234(2006)06-0934-03 |
| 收稿时间： | 2005-11-04 |
| 修稿时间： | 2005-11-04 |
Association of plastic flow rules |
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| LENG Fei,LIN Gao. Association of plastic flow rules[J]. Journal of Harbin Institute of Technology, 2006, 38(6): 934-936 |
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| Authors: | LENG Fei LIN Gao |
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| Affiliation: | National Key Lab of Coastal and Offshore Engineering, Dalian university of Technology, Dalian 116024, China |
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| Abstract: | Through the introduction,comparison and analyze of rate-independent plastic flow rules derived from the postulate of maximum dissipation and thermodynamics,the conclusion is drawn that plastic flow rules is always dependent on yield function,and irreversible strain increment can be calculated by yield and dissipation function.The flow rule in this paper overcomes the disadvantages of unclearly meaning and difficult construction of potential functions in non-associated flow rules. |
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| Keywords: | plasticity flow rule the postulate of maximum dissipation thermodynamics |
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