| 泡沫铝率相关本构模型及其在三明治夹芯板冲击吸能特性的应用研究 |
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| 引用本文： | 寇玉亮,陈常青,卢天建.泡沫铝率相关本构模型及其在三明治夹芯板冲击吸能特性的应用研究[J].固体力学学报,2011,32(3):217-227. |
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| 作者姓名： | 寇玉亮 陈常青 卢天建 |
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| 作者单位： | 1. 西安交通大学航天航空学院2. 清华大学工程力学系3. 西安交通大学校长办公室 |
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| 基金项目： | 国家自然科学基金项目(11072127,10832002); 国家“973计划”(2011CB610305); 国家“111计划”(B06024)资助 |
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| 摘 要： | 高孔隙率泡沫铝芯体三明治板具有轻质、高比刚度和减振吸能等优良的力学特性和物理特性,被广泛地应用于碰撞吸能部件上.近年来,高孔隙率泡沫铝在动态压缩下是否具有应变率敏感性成为广大学者的研究焦点.论文建立了横观各向同性率相关本构模型来描述高孔隙率泡沫铝的应变率效应,给出了有限元的计算步骤,基于ABAQUS/Explicit平...
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| 关 键 词： | 泡沫铝 率相关本构 子程序 三明治板 吸能 |
| 收稿时间： | 2010-09-17 |
A RATE-DEPENDENT CONSTITUTIVE MODEL FOR ALUMINUM FOAMS AND ITS APPLICATION TO THE ENERGY ABSORPTION OF LIGHTWEIGHT SANDWICH PANELS WITH ALUMINUM FOAM CORES |
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| Yuliang Kou,Changqing Chen,Tianjian Lu.A RATE-DEPENDENT CONSTITUTIVE MODEL FOR ALUMINUM FOAMS AND ITS APPLICATION TO THE ENERGY ABSORPTION OF LIGHTWEIGHT SANDWICH PANELS WITH ALUMINUM FOAM CORES[J].Acta Mechnica Solida Sinica,2011,32(3):217-227. |
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| Authors: | Yuliang Kou Changqing Chen Tianjian Lu |
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| Affiliation: | Yuliang Kou1 Changqing Chen2 Tianjian Lu1(1 School of Aerospace,Xi'an Jiaotong University,Xi'an,710049)(2 School of Aerospace,AML & CNMM,Tsinghua University,Beijing,100084) |
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| Abstract: | Aluminum foam sandwich structures with the excellent mechanical and physical properties as lightweight,high specific stiffness and strength,vibration damping and energy absorption,have been wildly applied in the energy absorption device under impact.In this paper,a transverse isotropic rate-dependent constitutive model for aluminum foams has been developed for the strain rate sensitive behavior of the foams.Numerical algorithm for computing the rate-dependent constitutive model in finite element method is p... |
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| Keywords: | aluminum foam rate-dependent constitutive model user subroutine sandwich structures energy absorption |
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