000004888 001__ 4888
000004888 005__ 20141119144602.0
000004888 04107 $$aeng
000004888 046__ $$k2002-06-02
000004888 100__ $$aMihdi, Mohammad Mirza
000004888 24500 $$aCHARACTERIZATION OF STRESS SEPARATION RELATION IN CEMENTITIOUS MATERIALS

000004888 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004888 260__ $$bColumbia University in the City of New York
000004888 506__ $$arestricted
000004888 520__ $$2eng$$aA new approach integrating numerical modeling and experimental work was developed to characterize the stress separation relation in cementitious materials. In this paper, we present the formulation and the algorithm of the numerical modeling. Two weight matrixes, one relates the stresses along the potential crack line to the external loads and the other relates the stresses along the potential crack line to the crack openings, are formed first. The modeling can then be achieved by implementing the stress separation as a boundary condition on the kinetic relation of the stresses, crack opening, and the applied loads. Through a step-by-step iterative process, the relationship between the stresses in the member, load-crack mouth displacement curves, and stress-separation curves can be obtained. Parameter study in exploring the relationship by varying each parameter separately is presented.

000004888 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004888 653__ $$a

000004888 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004888 720__ $$aMihdi, Mohammad Mirza$$iLin, Feng-Bao$$iCho, Young S.
000004888 8560_ $$ffischerc@itam.cas.cz
000004888 8564_ $$s178392$$uhttps://invenio.itam.cas.cz/record/4888/files/493.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004888 962__ $$r4594
000004888 980__ $$aPAPER