A brittle material typically exhibits substantial plastic deformation with high energy absorption before fracture. true or false For transgranualar...

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Mechanical Engineering

Abrittle material typically exhibits substantial plastic deformationwith high energy absorption before fracture.

true or false

For transgranualar fracture, crack propagation is along thegrains, whereas for intergranular crack propagation is through thegrain boundaries.

true or false

during secondary creep the creep rate is constant

true or false

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1Soln B FalseA brittle material exhibits littleor no plastic deformation with low energy absorption beforefractureTakes place without any appreciable plastic deformationand by rapid crack propagation Direction of crack motion is nearlyperpendicular to the direction of applied tensile stressIt occurswhen the material is in elastic conditionlittle plasticdeformation and low energy absorption before fracture2Soln TrueCrack propagation is a process ofevolutionary geometry driven by relatively high values andgradients in crack front fields Crack propagation is See Answer

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