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Optimization of the initial crack length in consideration of the groove width for wedge splitting test specimen
Seitl, Stanislav ; Klusák, Jan
An optimization of the initiate crack length in view of the width of grips groove of the wedge splitting (WS) specimen is the topic of the contribution. The WS specimens are now started to be used for fracture laboratory testing, especially of quasi-brittle cement-based composites. For the optimization the theory of the general fracture mechanics is used. For the numerical calculation the finite element method and ANSYS software are used. At the end, the optimal crack lengths for various grips widths are discussed and some suggestions are pronounced.

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