strength of materials- lab report
plz define young's modulus, 0.1% proof stress, tensile strength, percentage elongation and percentage reduction of area after fracture.
- MikeLv 51 decade agoFavorite Answer
Young's modulus - The ratio of stress to strain on the loading plane along the loading direction.
0.1% proof stress - The stress that will cause a permanent extension of 0.1 % of a tensile test piece.
Tensile Strength - The tensile strength of a material is the maximum amount of tensile stress that it can be subjected to before failure.
Percentage elongation - The elongation of the test specimen expressed as a percentage of the gage length.
Reduction of Area is expressed as a precentage and is given by:-
Percentage Reduction of Area (%) = 100 (Ao - Af)/Ao
Ao is the orginal cross-sectional area
Af is the cross-sectional after fracture
==================================================Source(s): my engineering knowledge