load per unit area continued deformation under sustained loading the strain per unit length the resistance offered by the material per unit area to a force
Answer Discuss in Comment
Mohr Poisson Robert Hook Thomas Young
lateral stress to linear stress Young's Modulus of elasticity to Modulus of Rigidity lateral strain to longitudinal strain lateral elongation to linear elongation
average of ultimate strength and actual breaking stress stress corresponding to 0.2% strain from the stress strain curve ultimate strength the stress at which the permanent set reaches the value 0.2%
they can be easily analysed they can be made of good material they can be designed to have larger dimensions higher loads can be supported with less consumption of material
fail after giving ample warning fail suddenly never fail never be used for structural purposes
to become brittle continued deformation with time under sustained loading disappearance of deformation on removal of load not being ductile
the failure occurs by buckling only the column is having initial curvature and the load is eccentrically applied the failure occurs by crushing of the material the column shortens so much that it will become a short column
the maximum slenderness ratio effective length only radius of gyration only the ultimate crushing strength of the material
8 4 6 2
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