| 混凝土动态力学性能分析 |
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| 引用本文： | 陈磊,李媛,陈太林,滕桃居. 混凝土动态力学性能分析[J]. 建筑技术开发, 2004, 0(1) |
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| 作者姓名： | 陈磊 李媛 陈太林 滕桃居 |
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| 作者单位： | 空军后勤学院 徐州221000(陈磊，李媛，陈太林)，空军后勤学院 徐州221000(滕桃居) |
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| 摘 要： | 混凝土结构在爆炸与冲击载荷下的动态力学性能通常是结构的应力波效应和材料的应变率效应。而混凝土结构中的应力波传播特性实际上又依赖于混凝土在高应变率下率型本构关系。本文讨论了这方面的研究进展情况 ,包括混凝土弹性模量、抗压强度、断裂应变等重要强度参数对应变率的相关性 ,特别强调混凝土率型本构关系的研究 ,以及损伤演化的重要性。
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| 关 键 词： | 混凝土 动态力学性能 应变率 Hopkinson压杆 |
DYNAMIC MECHANICAL BEHAVIOUR OF CONCRETES |
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| Chen Lei Li Yuan Chen Tai-lin Teng Tao-ju. DYNAMIC MECHANICAL BEHAVIOUR OF CONCRETES[J]. Building Technique Development, 2004, 0(1) |
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| Authors: | Chen Lei Li Yuan Chen Tai-lin Teng Tao-ju |
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| Affiliation: | Chen Lei Li Yuan Chen Tai-lin Teng Tao-ju |
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| Abstract: | For the safety analysis of concrete structures under impulsive loading is i.e.stress wave effects and strain-rate effects.Moreover,the characteristics of stress waves propagating in concrete structures are essentially dependent on the rate-dependent constitutive relation of concrete materials under high strain-rates.The influences of strain-rate on elastic modulus,compressive strength and fracture strain are briefly reviewed.Based on the authors results,the studies on the rate-dependent constitutive relation,particularly taking account of damage evolution,are emphasized in relation to the safely analysis of concrete structures. |
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| Keywords: | Concrete Dynamic mechanical behavior Strain-rate split Hopkinson pressure bar |
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