000012698 001__ 12698
000012698 005__ 20160920162638.0
000012698 04107 $$aeng
000012698 046__ $$k2016-09-05
000012698 100__ $$aPasquali, M.
000012698 24500 $$aA geometrically exact formulation for thin laminated composite shells

000012698 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012698 260__ $$bTaylor and Francis Group, London, UK
000012698 506__ $$arestricted
000012698 520__ $$2eng$$aA geometrically exact approach is employed to formulate the equations of motion of thin multi-layered composite shells subject to excitations that cause large strains, displacements, and rotations. Ad hoc truncated kinematic approximations of the obtained semi-intrinsic theory delivers, as a by-product, the kinematics of the Koiter and the Naghdi theories of shells, respectively. Numerical simulations are carried out both for cylindrical and spherical shells: nonlinear equilibrium paths are constructed considering a quasi-static load increase. The comparisons between the results furnished by the geometrically exact theory and those obtained by Koiter and Naghdi theories show the high accuracy of the proposed nonlinear approach. Classical theories becomes increasingly inaccurate at deflection amplitudes of the order of the shell thickness, evidencing that significant misrepresentations of the system behavior are possible if reduced-order kinematics are taken into account.

000012698 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012698 653__ $$a

000012698 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012698 720__ $$aPasquali, M.$$iGaudenzi, P.
000012698 8560_ $$ffischerc@itam.cas.cz
000012698 8564_ $$s976673$$uhttp://invenio.itam.cas.cz/record/12698/files/146.pdf$$yOriginal version of the author's contribution as presented on CD, 146.pdf.
000012698 962__ $$r12552
000012698 980__ $$aPAPER