Mechanics of materials, also called strength of materials is a subject which deals with the behavior of objects withstanding stresses and strains.
The study of strength of materials often refers to various methods of calculating stresses in structural members, such as beams, columns and shafts. The methods employed to predict the response of a structure under loading and its susceptibility to various failure modes may take into account various properties of the materials other than material yield strength and ultimate strength; for example, failure by buckling is dependent on material stiffness and thus Young's Modulus.
Read more about Strength Of Materials: Definition, Design Terms, Microstructure
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“Fearlessness is a more than ordinary strength of mind, which raises the soul above the troubles, disorders, and emotions which the prospect of great dangers are used to produce. And by this inward strength it is that heroes preserve themselves in a calm and quiet state, and enjoy a presence of mind and the free use of their reason in the midst of those terrible accidents that amaze and confound other people.”
—François, Duc De La Rochefoucauld (1613–1680)
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—John Dos Passos (1896–1970)
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—Lyndon Baines Johnson (1908–1973)