基于ABAQUS驱动钢结构断裂损伤探究  

Research on Fracture Damage of Steel Structures Driven by ABAQUS

作　　者：王铎 沈振辉[1] 蒋国平[1] 杨拴强[1] WANG Duo;SHEN Zhenhui;JIANG Guoping;YANG Suanqiang(College of Engineering,Fujian Jiangxia University,Fuzhou 350108,China)

机构地区：[1]福建江夏学院工程学院

出　　处：《安阳工学院学报》2019年第6期17-20,共4页Journal of Anyang Institute of Technology

基　　金：2017年福建省中青年教师教育科研项目(JAT170613);福建江夏学院校级教育教学改革重点资助项目(J2017A009)

摘　　要：以低碳钢单轴拉伸实验为基础,运用材料单轴拉伸应力-应变非线性理论、塑性变形原理和损伤演化相关原理,推演出延性金属的弹塑性损伤模型,得出损伤变量的取值。利用ABAQUS有限元软件平台模拟低碳钢单向受力拉伸断裂。针对ABAQUS模拟拉伸断裂损伤的有效性进行分析,在钢结构进入塑性阶段必须考虑损伤形成的影响。材料进入塑性阶段后促进损伤扩展,应防止构件出现塑性过程,导致局部失效破坏。Based on the uniaxial tensile test of low carbon steel, the elastic-plastic damage model of ductile metal is deduced by using the stress-strain non-linear theory of uniaxial tensile material, the principle of plastic deformation and the related principle of damage evolution, and the value of damage variable is obtained. The unidirectional tensile fracture of low carbon steel was simulated by ABAQUS finite element software platform. Aiming at the effectiveness of ABAQUS simulating tensile fracture damage, the influence of damage formation must be considered when steel structure enters the plastic stage. When the material enters the plastic stage, it promotes the damage propagation, and the plastic process of the component should be prevented, leading to local failure and failure.

关 键 词：ABAQUS 损伤演化 延性金属 塑性变形 低碳钢 

分 类 号：TG142.1[一般工业技术—材料科学与工程]