000014194 001__ 14194
000014194 005__ 20161115100144.0
000014194 04107 $$aeng
000014194 046__ $$k2016-08-21
000014194 100__ $$aYu, Feng
000014194 24500 $$aStress triaxiality effect on damage evolution of high-strength steels

000014194 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014194 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014194 506__ $$arestricted
000014194 520__ $$2eng$$aThe damage evolution of three high strength steels was characterized at two levels of stress triaxiality, 0.4 and 1.2, using both smooth and short gauge tensile specimens, respectively, where the value of stress triaxiality was determined using finite element modelling. With the aid of numerical simulation, the degradation of elastic modulus for the smooth tensile specimens was first characterized by eliminating the influence of geometry on the unloading modulus measured from cyclic tensile tests. The approach was also applied to the short gauge tensile specimens to further explore the damage evolution. A theoretical model describing the dependence of damage parameter on the stress triaxiality was then used to show the difference in the damage evolution between the two types of tensile specimens.

000014194 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014194 653__ $$a

000014194 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014194 720__ $$aYu, Feng
000014194 8560_ $$ffischerc@itam.cas.cz
000014194 8564_ $$s177625$$uhttps://invenio.itam.cas.cz/record/14194/files/PO.SM03-2.10.130.pdf$$yOriginal version of the author's contribution as presented on CD,  page 1881, code PO.SM03-2.10.130
.
000014194 962__ $$r13812
000014194 980__ $$aPAPER