Stable ductile fracture of a typical metal alloy is found to be governed by the condition dS/da = const., i.e. the rate change of the strain energy density S with crack length 2n (or a) remained constant. Since fracture and/or yielding are toad rate dependent, the incremental theory of plasticity is
โฆ LIBER โฆ
Fracture instability of notched cracked plates characterized by the strain energy density theory
โ Scribed by E.E. Gdoutos; C.G. Thireos
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 527 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0167-8442
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Until recently, the one-parameter singular expression for stresses near a crack-tip was widely thought to be sufficiently accurate over a reasonable region for any geometry and loading conditions. This view has been fast changing due to the growing evidence that the inclusion of higher order terms c