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Wednesday, 10 January 2018


-Design engineer prefer ductile material compare to brittle material.
-in ductile material when plastic deformation starts(permeable deformation or yielding)failure occurs.
-in brittle material there is no plastic deformation and failure occurs at the fractured point

-in ductile material before fracture some indication to the designer in the dorm of plastic deformation that mean component will fail after some time but in brittle material there is no indication in the dorm of yielding before fracture.

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