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有限变形下材料的弹塑性损伤行为及结构响应分析
ANALYSIS OF THE ELASTO-PLASTIC-DAMAGE BEHAVIOR AND STRUCTURAL RESPONSE OF MATERIALS UNDER FINITE DEFORMATION

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陈岑 1 *   梁乃刚 1   刘芳 2   付强 3   洪友士 1  
文摘 该文基于一种弹塑性损伤本构模型,分析了材料在有限变形下的力学行为及结构力学响应。将模型建立的本构方程进行线性化处理,嵌入到有限元计算软件ABAQUS的子程序中,实现模型在结构计算中的应用。针对铝合金材料(6061-T6),建立了两种不同的结构模型进行数值模拟。模拟结果与实验结果对比表明,模型能较好地描述材料的变形过程及结构的力学行为。最后基于模型的理论基础,分析了材料在超出弹性范围时的复杂变形行为。
其他语种文摘 The mechanical behavior and structural response of materials under finite deformation are analyzed by using an elasto-plastic damage constitutive model. The constitutive equation of the present model is transformed into a linear format, and implemented into the finite element simulation tool ABAQUS. For the aluminum alloy 6061-T6, two kinds of structures are modeled for numerical simulation. From the comparison between the simulation and experimental results, it is found that the present model has the ability to describe the deformation processes and structural response of material. Based on the theory behind the present model, complicated deformation behavior beyond the elastic stage is also analyzed.
来源 工程力学 ,2014,31(11):9-16 【核心库】
DOI 10.6052/j.issn.1000-4750.2013.05.0410
关键词 有限变形 ; 弹塑性损伤 ; 结构响应 ; 本构理论 ; 构元组集模型
地址

1. 中国科学院力学研究所, 非线性力学国家重点实验室, 北京, 100190  

2. 武汉理工大学交通学院, 湖北, 武汉, 430063  

3. 中国轻型燃气轮机开发中心, 北京, 100190

语种 中文
文献类型 研究性论文
ISSN 1000-4750
学科 力学
基金 国家自然科学基金项目
文献收藏号 CSCD:5285138

参考文献 共 23 共2页

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