Any yield or fracture condition which is constructed from the deviator of the stress field will fail to account for the effect of hydrostatic pressure on the flow and fracture characteristics of a solid, as shown by Bridgman.' This criticism applies in particular to the von 1\iises and Tresca yield conditions which are widely used in the theory of plastic flow. To meet the above and other objec...

Stable ductile crack growth in 3 mm thick AISI 304 stainless steel specimens has been investigated experimentally and numerically. Multi-linear Isotropic Hardening method coupled with the Von-Mises yield criterion was adopted for modeling elasto-plastic behavior of the material. Mode-I CT fracture specimens have been tested to generate experimental load-displacement-crack growth data during sta...

Numerical methods such as boundary element and finite element methods are widely used for the stress analysis in solid mechanics. This study presents boundary element method based on the displacement discontinuity formulation to solve general problems of interaction between hydraulic fracturing and discontinuities. The crack tip element and a higher order boundary displacement collocation techn...

Abstract In situ microcantilever bending tests were performed on martensite islands in a dual-phase (DP) steel to extract the fracture toughness of at microscale and understand damage initiation during forming DP steels. All microcantilevers produced through FIB milling. The do not exhibit linear elastic brittle fracture; instead, significant ductile tearing is observed. conditional extracted b...