A method for the crack tip analysis of a tensile loaded crack (mode I) due to yielding of the material is developed. The stress/strain distribution within the plastic zone, as well as size of the plastic zone are presented. The development is based on the energy interpretation of the strain hardenin
The size of the cohesive zone at a crack tip
โ Scribed by E. Smith
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 455 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0013-7944
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โฆ Synopsis
Abrbret--Although
it is markedly dependent on both the stress at the cohesive zone tip and the dispkummt at the crack tip, the cohesive zor~ size at the critical stage of crack extension is shown to be relatively insensitive to the deteikd form of the force law &scribirIg the non-iinesrity of material bchaviour.
๐ SIMILAR VOLUMES
The distribution of dislocations in the vicinity of a mode I crack tip is formulated based on the observation of a single crystal specimen of aluminium by transmission electron microscopy (TEM). Closed form expressions of the dislocation density function and the dislocation-free zone (DFZ) condition
Consideration is given to the development of a general theory for the determination of the structure in the vicinity of the tip of a crack within an isotropic elastic solid. The basis of the model is the presence of a Barenhlatt-type zone, in which cohesive stresses act, thereby allowing non-linear
Abstraet--A laser speckle technique, together with a computer-based image processing system, was used to measure the extent of the elastic-plastic boundary ahead of a static mode 1 crack under small-scale yielding. The technique used a simple optical set-up and did not require surface contact with t