摘要
为研究EPS填充混凝土的损伤破坏机理,基于混凝土塑性损伤本构模型和泡沫塑性本构模型,用Abaqus对EPS填充混凝土随机细观模型进行准静态压缩试验的数值模拟.结果表明:受压损伤沿着45°方向发展,受拉损伤沿着竖直方向发展.在同一应变下,同一EPS体积含量模型的受拉损伤比受压损伤更明显.EPS颗粒的存在能够增强EPS泡沫填充混凝土的韧性.
To study the damage mechanism of the concrete filled with EPS foam,based on plastic damaged constitutive model of concrete and plastic constitutive model of foam,the numerical simulation is performed on the random micro-structure model of concrete filled with EPS under quasi-static compression by Abaqus. The results show that the compressive damage develops along the 45° direction and the tensile damage develops along the vertical direction. Under the same EPS volume content and the same strain,the tensile damage is more obvious than compressive damage. The EPS particles can enhance the toughness of the concrete filled with EPS.
出处
《计算机辅助工程》
2017年第3期66-71,共6页
Computer Aided Engineering
基金
国家自然科学基金(11272124)
关键词
聚苯乙烯泡沫塑料
细观结构模型
受压损伤
受拉损伤
有限元
expanded polystyrene
micro-structure model
compressive damage
tensile damage
finite element
