Tensor Model for Dynamic Damage of Ductile Metals Over a Wide Range of Strain Rates

摘要：

　　Based on llyushin damage theory,the damage tensor for deformation at high strain rate was divided into volumetric and deviatoric part.The volumetric damage describes microvoid behavior and deviatoric damage characterizes shear failure.Thermodynamics of irreversible processes in consideration of damage was applied.The Gurson model is used for characterizing volumetric damage and strain accumulation damage model for deviatoric damage.The presented model is applicable to analysis of ductile failure over a wide range of the stress state triaxiality corresponding to wide range of strain rates from quasistatic tension to high rates of strain,even to high pressure shock.

关键词： dynamic damage tensor model metal high strain rate

作者: X.HUANG

作者单位: Institute of Systems Engineering, China Academy of Engineering Physics, PR China 621900

会议类型: 国际会议

会议名称: Sixth International Conference on Nonlinear Mechanics(第六届国际非线性力学会议)(ICNM-VI)

会议地点: 上海

会议语种:英文

页码: 100-104

在线出版日期: 2013-08-01（万方平台首次上网日期，不代表论文的发表时间）