Investigation of the residual load-bearing behaviour of fractured glazing


///Investigation of the residual load-bearing behaviour of fractured glazing
This volume describes the Through-Cracked-Bending (TCB) Test and the Through-Cracked-Tensile (TCT) Test as central testing methods to evaluate the residual load-bearing behaviour of laminated glass such as LSG and annealed glass. Both allow for a classification of the intermediate layer of LSG by means of a comparison with the PVB foil usually applied in the building sector, and are superior to the tensile bond test and adhesive shear strength test as well as currently used test methods such as the Pummel test, for example. Delamination behaviour of the intermediate layer in broken LSF, to be interpreted as a separation of foil and glass, plays a critical role in residual load-bearing behaviour. Experimental research is done on the delamination behaviour using PVB foils of different rates of adhesion and the TCT test at different deformation rate by determining the individual rate of energy release, whereby the test results are depicted and evaluated by means of cohesive zone elements of the finite element method.

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