混凝土损伤塑性模型参数选取及应用  

Parameter selection and application of concrete damage plasticity model

作　　者：王琼与 桑登峰[1] 娄学谦[1] 邹学韬 WANG Qiongyu;SANG Dengfeng;LOU Xueqian;ZOU Xuetao(CCCC Fourth Harbor Engineering Institute Co.,Ltd.,Guangzhou 510230,China;School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510641,China)

机构地区：[1]中交四航工程研究院有限公司,广东广州510230 [2]华南理工大学土木与交通学院,广东广州510641

出　　处：《水运工程》2023年第6期26-31,50,共7页Port & Waterway Engineering

摘　　要：针对ABAQUS(有限元分析软件)的CDP模型(混凝土损伤塑性模型)的参数选取问题,结合袁迎曙的试验结果,对CDP模型的黏性系数、剪胀角以及计算方法的选取展开探讨。结果表明:1)黏性系数取0.001时具有良好的计算精度和收敛性;2)剪胀角取36°左右时,计算结果与试验结果最为吻合;3)对于CDP模型的钢筋混凝土,不适合采用Risk法(弧长法)进行计算,而应采用“Static,General”法(一般静力学法)。参数建议值的计算结果较好地反应出钢筋混凝土梁损伤开裂破坏的过程,可为港口码头等工程钢筋混凝土构件力学性能的研究提供参考。Regarding the parameter selection of ABAQUS(finite element analysis software)CDP model(concrete damage plastic model),combined with the experimental results of Yuan Yingshu,the selection of viscosity coefficient,dilation angle and calculation method of CDP model is discussed.The results show that:1)When the viscosity coefficient is 0.001,it has good calculation accuracy and convergence;2)When the dilation angle is about 36°,the calculated results are in the best agreement with the experimental results;3)For the reinforced concrete problem of CDP model,the“Static,General”method(general statics method)should be used instead of the Risk method(arc-length method).The calculation results of the suggested values of these parameters can well reflect the damage and cracking process of reinforced concrete beams,and can provide a reference for the research on mechanical properties of reinforced concrete members in port and wharf projects.

关 键 词：混凝土损伤塑性模型 黏性系数 剪胀角 计算方法 ABAQUS 

分 类 号：TU31[建筑科学—结构工程] U65[交通运输工程—港口、海岸及近海工程]