000012518 001__ 12518
000012518 005__ 20160816141450.0
000012518 04107 $$aeng
000012518 046__ $$k2016-05-09
000012518 100__ $$aZemanová, A.
000012518 24500 $$aLAMINATED GLASS STRUCTURES IN BENDING: TIME/TEMPERATURE-DEPENDENT FINITE ELEMENT MODELS

000012518 24630 $$n22.$$pEngineering Mechanics 2016
000012518 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Praha
000012518 506__ $$arestricted
000012518 520__ $$2eng$$aThe lamination of glass sheets with ductile interlayers significantly changes the post-fracture response of glass structures and increases their safety. The aspects important for the modeling of laminated glass structures are: (i) heterogeneity in material parameters of glass and polymer foil (the ratio of shear moduli exceeds 1,000), (ii) time/temperature-dependent behavior of polymer foil, and (iii) effects of geometric non-linearity as a result of slenderness of laminated glass. One of the modeling approaches is finite element formulation based on refined theories. In the proposed model, kinematics relations are formulated for each layer individually and the compatibility on the interfaces of layers is ensured via Lagrange multipliers with the meaning of forces holding the neighboring layers perfectly bonded. The comparison of models with different assumptions is performed in this contribution: formulation based on large deflection or finite strains theories for kinematics, and constitutive assumption of constant bulk modulus or constant Poisson’s ratio in relations for time/temperature-dependent behavior of polymeric interlayer. The developed models were verified against the detailed finite element model in ADINA and compared with a simplified model assuming elastic behavior of polymer foil with the secant shear modulus set according given temperature and loading time.

000012518 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012518 653__ $$aLaminated glass, Finite element method, Lagrange multipliers, Generalized Maxwell model, Williams-Landel-Ferry equation.

000012518 7112_ $$aEngineering Mechanics 2016$$cSvratka, CZ$$d2016-05-09 / 2016-05-12$$gEM2016
000012518 720__ $$aZemanová, A.$$iZeman, J.$$iŠejnoha, M.
000012518 8560_ $$ffischerc@itam.cas.cz
000012518 8564_ $$s154558$$uhttps://invenio.itam.cas.cz/record/12518/files/148bo_o_sol.pdf$$yOriginal version of the author's contribution as presented on CD, id 148, section SOL.
000012518 962__ $$r12369
000012518 980__ $$aPAPER