Thermal fracture of macrocrack with closure as influenced by microcracks |
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Authors: | V Tamuzs V Petrova N Romalis |
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Abstract: | The fracture stability of macrocracks under uniform heat flux is analyzed to include the effect of a system of microcracks. The interaction of cracks leads to full or partial closure of crack surfaces. The boundary problem is stated and a solution is obtained. The domains where microcracks are closed and/or affect partial closing of the macrocrack are found. Evaluated is the macrocrack tip stress intensity factor accounting for closure. |
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