基于ABAQUS的泡沫混凝土棱柱体数值模拟  

Numerical Simulation of Foam Concrete Prism Based on ABAQUS

作　　者：龙文武[1,2] 王劲松[1] 卢恺[1] 

机构地区：[1]南华大学城市建设学院,衡阳421001 [2]湖南省建筑材料研究设计院有限公司,长沙410000

出　　处：《混凝土与水泥制品》2016年第6期70-72,共3页China Concrete and Cement Products

基　　金：湖南省土木工程"十二五"重点学科项目

摘　　要：通过微机控制电液伺服机(300k N)对150mm×150mm×300mm泡沫混凝土棱柱体进行了轴心单轴压缩试验,测得泡沫混凝土弹性模量、应力-应变本构关系等力学性能。在ABAQUS中建立与实验尺寸相同的泡沫混凝土棱柱体三维模型,并设置泡沫混凝土材料本构关系参数。对模型采用时间-位移的线性加载方法进行了单轴轴心压缩模拟,以验证ABAQUS中泡沫混凝土模型的正确性。通过对模型输出的荷载-时间曲线、荷载-位移曲线、应力-塑性应变曲线分析表明,设置的ABAQUS泡沫混凝土模型能较好地模拟泡沫混凝土轴心单轴压缩实验结果。The uniaxial compression test of 150mm×150mm×300mm foam concrete prism was carried out by using computer controlled servo machine （300kN）, mechanical properties of elastic modulus of foam concrete and stress-strain constitutive relation were measured. A three dimensional model of foam concrete prism with the same size as experimental size was established in ABAQUS, and constitutive relation parameters of foam concrete were set up. In order to verify the correctness of the ABAQUS model, the model is simulated by uniaxial compression that using time-displacement linear loading method. By analyzing the model output load-time curve, load-displacement curve and stress-strain curve, uniaxi- al compression test of foam concrete can be simulated by the ABAQUS foam concrete model.

关 键 词：泡沫混凝土 本构关系 ABAQUS 模型参数 棱柱体 

分 类 号：TU528[建筑科学—建筑技术科学]