| 304不锈钢室温单轴循环棘轮行为的粘塑性本构描述 |
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| 引用本文： | 高庆,康国政,杨显杰.304不锈钢室温单轴循环棘轮行为的粘塑性本构描述[J].固体力学学报,2002,23(2):167-172. |
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| 作者姓名： | 高庆 康国政 杨显杰 |
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| 作者单位： | 西南交通大学应用力学与工程系,成都,610031 |
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| 基金项目： | 国家自然科学基金 (19772 0 4 1)，四川省跨世纪青年学科带头人培养基金资助 . |
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| 摘 要： | 在统一粘塑性循环本构模型的框架下对循环硬化的304不锈钢的单轴棘轮行为进行了本构描述。模型中通过随动硬化背应力演化和各向同性变形阻力演化对304不锈钢在非对称应力循环下的循环附加硬化和循环流动特性进行了分析，同时考虑了加载历史对循环棘轮行为的影响。将模型应用于304不锈钢室温单轴循环棘轮行为及其对加载历史依赖性的描述中，预言结果与实验结果吻合较好。
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| 关 键 词： | 单轴循环 不锈钢 棘轮行为 本构描述 粘塑性 |
| 修稿时间： | 2000年11月10 |
VISCO-PLASTIC CONSTITUTIVE MODEL FOR UNIAXIAL RATCHETING OF 304 STAINLESS STEEL AT ROOM TEMPERATURE |
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| Gao Qing,Kang Guozheng,Yang Xianjie.VISCO-PLASTIC CONSTITUTIVE MODEL FOR UNIAXIAL RATCHETING OF 304 STAINLESS STEEL AT ROOM TEMPERATURE[J].Acta Mechnica Solida Sinica,2002,23(2):167-172. |
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| Authors: | Gao Qing Kang Guozheng Yang Xianjie |
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| Abstract: | The ratcheting of 304 stainless steel was described in the frame of unified visco plastic cyclic constitutive model. In the model, the cyclic hardening and cyclic flow properties of 304 stainless steel under asymmetrical stress controlled cycling were analyzed by the evolution rules of kinematic hardening back stress and isotropic deforming resistance. The effect of load history on the ratcheting was also considered. Comparing with the experimental results of 304 stainless steel, the predicting ability of the developed model is proved to be well. |
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| Keywords: | stainless steel ratcheting visco plasticity constitutive model |
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