000021342 001__ 21342
000021342 005__ 20170522124350.0
000021342 04107 $$aeng
000021342 046__ $$k2017-05-15
000021342 100__ $$aKovář, J.
000021342 24500 $$aTHE INFLUENCE OF CONTACT REGION ON PROBABILITY OF CERAMICS FRACTURE

000021342 24630 $$n23.$$pEngineering Mechanics 2017
000021342 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021342 506__ $$arestricted
000021342 520__ $$2eng$$aThis paper focuses on assessment of probability of ceramic component fracture. The component is loaded by four point bending with different boundary conditions. The Weibull's weakest link theory, which includes the effect of first principal stress only, was chosen for calculation of probability of fracture. The stresses for calculations were evaluated numerically by finite element method. The component was discretizated by plane elements and constraints were considered in two variants. In the first variant, the constraints and loads are considered at the centerline of the rod (in accordance with rod theory). The second variant considers constraints and loads on the outer surface of the body. The contact between body and constraint (support) is considered in this variant. The influence of the radius of support on the value of probability of body fracture and the width of contact region is analyzed.

000021342 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021342 653__ $$aWeibull´s weakest link theory, Contact, Probability of fracture, Hertz´s theory, Ceramic.

000021342 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021342 720__ $$aKovář, J.
000021342 8560_ $$ffischerc@itam.cas.cz
000021342 8564_ $$s963915$$uhttps://invenio.itam.cas.cz/record/21342/files/0510.pdf$$yOriginal version of the author's contribution in proceedings, page 510, section REL.
000021342 962__ $$r21225
000021342 980__ $$aPAPER