| 非线性材料本构模型结构和参数的耦合进化识别 |
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| 引用本文： | 杨成祥,冯夏庭.非线性材料本构模型结构和参数的耦合进化识别[J].东北大学学报(自然科学版),2002,23(4):379-382. |
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| 作者姓名： | 杨成祥 冯夏庭 |
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| 作者单位： | 东北大学资源与土木工程学院;东北大学资源与土木工程学院辽宁沈阳110004;辽宁沈阳110004 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金资助项目 (990 14 5 2 3，教育部高等学校优秀青年教师与科研奖励基金资助项目，霍英东教育基金会资助项目 (710 48) |
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| 摘 要： | 在引入进化思想的基础上,利用进化算法全局最优搜索特点,结合非线性力学分析方法,提出了材料非线性本构模型结构和参数的耦合进化识别算法,对复杂的非线性材料本构模型进行全局识别·复合材料非线性本构模型的识别结果表明了该方法的科学性,为非线性材料的研究提供了一条新途径
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| 关 键 词： | 非线性材料 本构模型 遗传算法 遗传规划 |
| 文章编号： | 1005-3026(2002)04-0379-04 |
| 修稿时间： | 2001年5月10日 |
Evolutionary Recognition of Structure and Parameters of Nonlinear Material Constitutive Model |
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| YANG Cheng xiang,FENG Xia ting.Evolutionary Recognition of Structure and Parameters of Nonlinear Material Constitutive Model[J].Journal of Northeastern University(Natural Science),2002,23(4):379-382. |
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| Authors: | YANG Cheng xiang FENG Xia ting |
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| Abstract: | Constitutive models of engineering materials are mainly characterized with highly nonlinear. Recognition of their structures and parameters is a search problem with multimodal and large parameter space. How to get the global trustable solution becomes the key point. A new approach evolutionary concept was introduced. Using the global optimum features of evolutionary algorithms, combining with nonlinear mechanical analysis method, a new algorithm for evolutionary recognition of structure and parameters of nonlinear material constitutive model was proposed to perform global optimum recognition of nonlinear material constitutive model. Also the constitutive model of composites was recognized as a example. The results approved the validity of the new method. This algorithm provides a new method for study of nonlinear material. |
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| Keywords: | nonlinear material constitutive model evolutionary algorithms evolutionary programming |
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