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factor of safety

   Also found in: Dictionary/thesaurus, Medical, Financial, Acronyms, Wikipedia 0.02 sec.
factor of safety [′fak·tər əv ′sāf·tē]
(mechanics)
The ratio between the breaking load on a member, appliance, or hoisting rope and the safe permissible load on it. Also known as safety factor.

factor of safety, safety factor
1. The ratio of the ultimate stress of a structure or pressure vessel to the design working stress.
2. The ratio of the ultimate breaking strength of a member or piece of material or equipment to the actual working stress or safe load when in use.


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It was their actions which eroded the building''s factor of safety.
This is why, for the purpose of safety and sustainability, the factor of safety of dams was increased several times.
The engineer may decide that the bridge needs a factor of safety of 2.
 
 
 
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