factor of safety
the ratio of the maximum stress that a structural part or other piece of material can withstand to the maximum stress estimated for it in the use for which it is designed. Also called safety factor.
[1855-60]

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Universalium. 2010.

Look at other dictionaries:

  • factor of safety — n. the ratio of the maximum strength of a piece of material or a part to the probable maximum load to be applied to it …   English World dictionary

  • Factor of safety — See also: safety factor (plasma physics) Factor of safety (FoS), also known as safety factor (SF), is a term describing the structural capacity of a system beyond the expected loads or actual loads. Essentially, how much stronger the system is… …   Wikipedia

  • factor of safety — certain amount of safety …   English contemporary dictionary

  • factor of safety — noun the ratio of the breaking stress of a structure to the estimated maximum stress in ordinary use • Syn: ↑safety factor • Hypernyms: ↑ratio * * * : the ratio of the ultimate strength of a member or piece of material (as in an airplane) to the… …   Useful english dictionary

  • factor of safety — i. A design factor used to provide for the possibility of loads greater than those assumed, and for uncertainties in design and fabrication. (ICAO). In aircraft design, the margin of strength against loads greater than the limit load normally 1.5 …   Aviation dictionary

  • factor of safety — noun the ratio between the maximum stress that a structural part can withstand and the safe permissible stress which it may be expected to experience in use …   Australian English dictionary

  • ultimate factor of safety — The safety factor in aircraft structure. It is the ratio of the ultimate load at which the structure is likely to fail to the loads imposed under normal operating conditions. This ratio normally varies between 1.5 and 1.7 …   Aviation dictionary

  • margin of safety — noun the margin required in order to insure safety in engineering the margin of safety is the strength of the material minus the anticipated stress • Syn: ↑safety margin, ↑margin of error • Hypernyms: ↑margin, ↑index * * * : an arithmetical index …   Useful english dictionary

  • margin of safety — The safety factor, expressed either in a percentage or a ratio, by which the ultimate failing load of components exceeds the design limit load …   Aviation dictionary

  • safety — n. (pl. ies) 1 the condition of being safe; freedom from danger or risks. 2 (attrib.) a designating any of various devices for preventing injury from machinery (safety bar; safety lock). b designating items of protective clothing (safety helmet) …   Useful english dictionary

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