A tensile test yields the following data on a sample: Initial cross section: 100 mm2 Elongation at failure: % 5 Force at failure:...

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A tensile test yields the following data on a sample:
Initial cross section: 100 mm2
Elongation at failure: % 5
Force at failure: 22,000 N
The sample is known to have a KIC of 40 MPa m1/2 and a Poisson ratio of 0.3.
a) What could be the critical crack size for the sample tested?
b) To use this material in an application with a safety factor of 3, what is the
minimum cross section area?

    • 7 years ago
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