A ductile damage model based on endochronic theory and its application to ductile failure analysis

1993 ◽  
Author(s):  
Xingfu Chen
Keyword(s):  
Failure Analysis ◽  
Damage Model ◽  
Ductile Failure ◽  
Ductile Damage ◽  
Endochronic Theory ◽  
Model Based

An endochronic damage model for three-dimensional ductile failure analysis of double-edge notched thick-tension specimens

1998 ◽  
Vol 212 (1) ◽  
pp. 25-34
Author(s):  
C L Chow ◽  
X F Chen
Keyword(s):  
Damage Evolution ◽  
Failure Process ◽  
Damage Model ◽  
Three Dimensional ◽  
Ductile Failure ◽  
Failure Criteria ◽  
Ductile Damage ◽  
Damage Evolution Equation ◽  
Double Edge ◽  
Failure Loads

A three-dimensional ductile damage model based on the endochronic plastic theory is developed and employed to characterize the failure process of double-edge notched thick-tension specimens. A ductile damage evolution equation is derived with a new intrinsic time-scale specifically defined to characterize damage evolution. Two damage failure criteria are proposed and employed to predict the failure loads and crack initiation sites which correspond well with those measured experimentally.

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