SOM Strength Of Materials – General Terms Explained
Stress – Internal resistance set up in a material on application of load.
Normal Stress = Load / Cross section area
True Stress = Load / Instataneous cross section area
Stiffness – The rate of stress with respect to strain
Resilience – Capacity of a material to store strain energy
Creep – Continuous deformation of material under steady load
Fatigue – Failure of a material under alternating stress
Proof Stress – Stress required to produce a permanent stress in a material equal to a specified percentage of its gauge length
Fracture – Fragmentation of solid body under load
Heat Treatment – A combination of operation involving heating and cooling under controlled condition for obtaining desired physical properties in a material
