pact an × Assignment 6207%20Impact%20and%20Fracture%20 Toughness.pdf Which of th

Question

pact an × Assignment 6207%20Impact%20and%20Fracture%20 Toughness.pdf Which of the following statements most accurately describes the effect on the internal stress of a flaw or crack in a plate loaded in tension? a) The flaw has no effect on the internal stress of the plate. b) The flaw has the effect of increasing the stress in the plate with the maximum stress 8. increasing as the length of the flaw increases and the radius of curvature of the crack tip decreases. e) The flaw has the effect of decreasing the stress in the plate with the minimum stress decreasing as the length of the flaw increases and the radius fo curvature of the crack tip decreases. The flaw has the effect of increasing the stress in the plate with the maximum stress increasing as the length of the flaw and the radius of curvature of the crack tip increase none of these, d) e) Problems necessary 1. A series of Charpy impact tests were performed on 4340 steel and produced the Complete the following problems separately on engineering paper and graphical software as following data: Temperature Impact Energy rc) 105 acer

Explanation / Answer

The correct answer is (b)

The flaw has the effect of increasing the stress in the plate with the maximum stress increasing as the length of the flaw increases and the radius of curvature of the tip decreases.

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