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Asked: May 8, 2020In: Mechanical Metallurgy

GATE MT 2020 Q16. A component subjected to tensile stress in a mechanical device is monitored periodically for cracks by NDT. The NDT technique can only detect cracks (both surface and internal) which are larger than 1 mm. Keeping a 10 % margin of safety, the maximum allowed tensile stress on the component will be ______MPa. (Round off to the nearest integer). Given, fracture toughness K(Ic) =30MPa m(1/2) and assume crack geometry factor of unity.

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Askmemetallurgy Official

Asked: March 13, 2020In: Mechanical Metallurgy

GATE MT 2011 Q8. In fracture toughness characterized by Kic or Jun. I in the subscript indicates loading by

Poll Results

76.92%(A) crack opening mode ( 10 voters )

0%(B) forward shear mode

0%(C) parallel shear mode

23.08%(D) perpendicular shear mode ( 3 voters )

Based On 13 Votes

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