The fracture toughness of Ni/Al2O3 laminates by digital image correlation I: Experimental crack opening displacement and R-curves |
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| Authors: | Waleed Mekky |
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| Affiliation: | Ceramic Engineering Research Group, Department of Materials Science and Engineering, McMaster University, Hamilton, Ont., Canada L8S 4L7 |
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| Abstract: | The crack opening displacement of laminates made of alumina/nickel was measured using digital image correlation (DIC). The crack opening displacements were validated with a finite-element model that uses the characteristic bridging-stress bridging-displacement relationship obtained experimentally by testing a constrained nickel sandwich in tension. The method is a simple, accurate way of measuring the crack opening displacement (COD) in ceramic/metal laminates. |
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| Keywords: | Digital image correlation Crack opening displacement Fracture Ceramic/metal laminates |
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