000022156 001__ 22156
000022156 005__ 20170622145959.0
000022156 04107 $$aeng
000022156 046__ $$k2015-05-25
000022156 100__ $$aZabala, F.
000022156 24500 $$aTHREE DIMENSIONAL ANALYSIS OF A CFRD DAM USING THE MATERIAL POINT METHOD

000022156 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022156 260__ $$bNational Technical University of Athens, 2015
000022156 506__ $$arestricted
000022156 520__ $$2eng$$aSeismic safety of earth or rockfill dams and embankments is strongly conditioned by permanent displacements caused by earthquakes. For a severe earthquake, the permanent displacement pattern results from the combination of displacements generated by volumetric and shear plastic strains distributed within the structure, and those caused by sliding of the soil mass along one or more failure surfaces. Numerical procedures commonly used in practice do not consider the strain localization phenomena at failure surfaces and the associated mesh dependence of the solution. Typically, nonlinear finite element or finite difference codes yield an estimate of distributed deformations and dynamic response, without accounting for the plastic strain localization problem. In addition, some of the numerical approaches used in practice do not consider the change of configuration caused by large displacements. The material point method or MPM is a lagrangian “particle-mesh” numerical method. It has been previously used in modeling dynamic problems with large displacements and strain localization. With MPM, a body is discretized into a collection of lagrangian particles, which carry all the data needed to define the body’s state. Interaction between particles takes place in a background fixed mesh, similar to those used in the finite element method. The MPM is applied in this paper to model the three dimensional dynamic response of Punta Negra dam, a concrete faced gravel dam which is being built in San Juan Province, Argentina..

000022156 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022156 653__ $$aMaterial Point Method, plastic strain localization, earth dams

000022156 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022156 720__ $$aZabala, F.$$iOldecop, L. O.$$iRodari, R. D.
000022156 8560_ $$ffischerc@itam.cas.cz
000022156 8564_ $$s561115$$uhttps://invenio.itam.cas.cz/record/22156/files/C1350.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022156 962__ $$r22030
000022156 980__ $$aPAPER