Shear wrinkling of GFRP webs in cell-core sanwiches

Glass fiber-reinforced (GFRP) cell-core sandwich structures are increasingly used in bridge deck and roof construction. GFRP cell-core sandwiches are composed of the outer GFRP face sheets, a foam core and a grid of GFRP webs integrated into the core in order to reinforce the shear load capacity. One of the critical failure modes is shear wrinkling, a local buckling failure in the sandwich webs due to shear loading. Shear wrinkling is a biaxial compression-tension wrinkling problem and, for this reason, the numerous results of pure compressive wrinkling research are not necessarily applicable. The details and results of in-plane biaxial compression-tension wrinkling experiments on GFRP sandwich laminates, stabilized by a polyurethane foam core, are presented. It is shown that an increasing transverse tension load significantly decreases the wrinkling load. These results are confirmed by finite element calculations.


Publié dans:
Proceedings of the 5th International Conference on FRP Composites in Civil Engineering (CICE 2010), 95-98
Présenté à:
5th International Conference on FRP Composites in Civil Engineering (CICE 2010), Beijing, China, September 27-29
Année
2010
Publisher:
Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa
Mots-clefs:
Laboratoires:




 Notice créée le 2011-01-11, modifiée le 2019-12-05


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