A thin plate of a ceramic material with E = 225 GPa is loaded in tension, developing a stress of 450 MPa. Is the specimen likely to fail if the most severe flaw present is an internal crack oriented perpendicular to the load axis that has a total length 0.25 mm and a crack tip radius of curvature equal to 1 μm?

Q: a) plot how the critical stress intensity kc depends on the thickness and explain this?

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Q: calculate the lateral strain and the change in diameter.

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Q: Example: the low cycle fatigue of a certain steel is given by life cycle equation-2: (of/E)=0.005…

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Q: A ceramic part is used under a complete reverse cyclic stress with a stress amplitude (S) of 250…

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Crack Detection

Concrete materials are meant for supporting structures, building foundations and they act as several load-bearing structures. Over time, due to environmental conditions, and based on the constituent materials used, concrete materials are subjected to a great degree of distress. Corrosion of the reinforcement bars due to chemical influences, uneven base, earthquake, drying shrinkages, and alkali-aggregate reactions are some of the reasons for concrete distress.