A Finite Element Study on Crack Tip Deformation.
SYRACUSE UNIV N Y DEPT OF CHEMICAL ENGINEERING AND MATERIALS SCIENCE
Pagination or Media Count:
The moire crack tip strain measurements made on double-edge-notched specimens loaded into the region of general yielding are compared with the results calculated by finite element method. It is found that the bulk of the strain measurements agree well with the results of the plane stress calculations except in the small area close to the crack tip. The crack tip region is stiffened against plastic deformation by the triaxial state of stress. The region affected by the crack tip stiffening extends to a distance from the crack tip equal to the specimen thickness.
- Theoretical Mathematics