000003650 001__ 3650
000003650 005__ 20141118153352.0
000003650 04107 $$acze
000003650 046__ $$k2013-05-13
000003650 100__ $$aNežerka, V.
000003650 24500 $$a2D FINITE ELEMENT ANALYSIS OF AGGREGATE INFLUENCE ON MECHANICAL PROPERTIES OF MORTAR SAMPLES.

000003650 24630 $$n19.$$pEngineering Mechanics 2013
000003650 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Praha
000003650 506__ $$arestricted
000003650 520__ $$2eng$$airtual testing of composite materials is, compared to a conventional experimental analysis, less time consuming, and it can very clearly reveal the failure mode. Therefore, it can be used for an optimization of the shape and amount of aggregates. Unlike the basic analytical homogenization methods, numerical modeling can predict the strength of the material and energy needed for the crack propagation. In our study three-point bending and splitting tests, by means of 2D plane-stress nonlinear finite element analysis utilizing isotropic damage model, were simulated. The results of the analysis indicate that angular aggregates of b igger size contribute to an increased fracture energy of the mortars, while the mortars containing fine round aggregates exhibit higher strength due to absence of stress concentrations around the grains. 

000003650 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000003650 653__ $$aFEM, damage model, mortar, influence of aggregates 

000003650 7112_ $$aEngineering Mechanics 2013$$cSvratka (CZ)$$d2013-05-13 / 2013-05-16$$gEM2013
000003650 720__ $$aNežerka, V.$$iZeman, J.$$iVorel, J.
000003650 8560_ $$ffischerc@itam.cas.cz
000003650 8564_ $$s1009848$$uhttps://invenio.itam.cas.cz/record/3650/files/031_Nezerka_V-FT.pdf$$y
             Original version of the author's contribution as presented on CD, SOL.
            
000003650 962__ $$r3632
000003650 980__ $$aPAPER