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ultimate strength

noun, Engineering
1.
the quantity of the utmost tensile, compressive, or shearing stress that a given unit area of a certain material is expected to bear without failing.
Also called ultimate stress.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for ultimate stress

ultimate strength

noun
1.
the maximum tensile stress that a material can withstand before rupture
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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