000008838 001__ 8838
000008838 005__ 20141204083525.0
000008838 04107 $$aeng
000008838 046__ $$k12/05/2014
000008838 100__ $$aNáhlík, L.
000008838 24500 $$aESTIMATION OF CRITICAL STRESS VALUES FOR CRACK INITIATION FROM SHARP V-NOTCHES

000008838 24630 $$n20.$$pEngineering Mechanics 2014
000008838 260__ $$bBrno University of Technology- Institute of Solid Mechanics, Mechatronics and Biomechanics
000008838 506__ $$arestricted
000008838 520__ $$2eng$$aThe aim of the paper is to estimate a critical value of an applied stress for a crack initiation from sharp tip of the V-notch using a procedure based on linear elastic fracture mechanics (LELM). The V-notch represents singular stress concentrator with the stress singularity exponent different from 0.5, therefore the generalized form of LELM for stress distribution description in the vicinity of the sharp V-notch was used. The stress singularity exponent depends on the V-notch opening angle, in general. A stability criterion based on the average value of the tangential stress component across a critical distance d from the V-notch tip is used in the paper. Resultant values of the critical applied stress are compared with experimental data.

000008838 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000008838 653__ $$aFailure initiation, Stress singularity, V-notch, Generalized stress intensity factor.

000008838 7112_ $$aEngineering Mechanics 2014$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2014
000008838 720__ $$aNáhlík, L.$$iŠtegnerová, K.$$iHutař, P.
000008838 8560_ $$ffischerc@itam.cas.cz
000008838 8564_ $$s431657$$uhttps://invenio.itam.cas.cz/record/8838/files/138-Nahlik-CD.pdf$$yOriginal version of the author's contribution as presented on CD, paper No. 138.
000008838 962__ $$r70
000008838 980__ $$aPAPER