000012508 001__ 12508
000012508 005__ 20160816141449.0
000012508 04107 $$aeng
000012508 046__ $$k2016-05-09
000012508 100__ $$aVančík, V.
000012508 24500 $$aUSING GPU COMPUTING FOR THE SOLUTION OF A CDEM PROBLEM

000012508 24630 $$n22.$$pEngineering Mechanics 2016
000012508 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Praha
000012508 506__ $$arestricted
000012508 520__ $$2eng$$aIn this paper we introduce an approach for the solution of a coupled discrete and finite element method (CDEM) designed for effective implementation on a graphics processing unit (GPU). A static problem is solved using dynamic relaxation while an optimum load-time history keeps the inertial forces small, thus eliminating the need for damping. Explicit time integration using central difference method is used. Each element is integrated independently and potential interelement contacts are enforced using penalty forces. This allows to avoid the need for forming global characteristic matrices and leads to a formulation well suited to GPU processing. To test the stability and accuracy of the proposed method, we start with a serial CPU implementation and examine a three-point bending test with the beam composed of dicrete deformable blocks (represented by traditional finite elements) connected by linear springs. The CPU code will serve as the starting point of the GPU implementation.

000012508 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012508 653__ $$aGPU computing, CDEM, dynamic relaxation, explicit integration.

000012508 7112_ $$aEngineering Mechanics 2016$$cSvratka, CZ$$d2016-05-09 / 2016-05-12$$gEM2016
000012508 720__ $$aVančík, V.$$iPatzák, B.
000012508 8560_ $$ffischerc@itam.cas.cz
000012508 8564_ $$s1063532$$uhttps://invenio.itam.cas.cz/record/12508/files/138bo_o_sol.pdf$$yOriginal version of the author's contribution as presented on CD, id 138, section SOL.
000012508 962__ $$r12369
000012508 980__ $$aPAPER