Abstract
In Part I, a phenomenological fracture criterion of polycrystalline metals under conventional loading conditions is presented on the premise that there exist generally two modes of fracture ; ductile shear fracture and brittle cleavage fracture. The two major effects on fracture ; that is, triaxiality of stress and plastic strains preceding fracture are formulated mathematically in this criterion. The experimental results under combined stresses on ductile metals are well explained on the basis of this criterion. In Part II, the tensile fracture tests of mild steel cylindrical bars having circumferential hyperbolic notches are performed, and the plastic stress and strain distributions at fracture necessary for an application of this criterion to practical problems are analysed approximately. The various fracture behaviors in these tests are well explained and a view as to the notch brittleness are given.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
