proof stress


Also found in: Dictionary, Acronyms, Wikipedia.

proof stress

[′prüf ‚stres]
(mechanics)
The stress that causes a specified amount of permanent deformation in a material.
A specified stress to be applied to a member or structure in order to assess its ability to support service loads.

proof stress

A stress, either compression or tension, which is applied to a material to determine the magnitude required to produce a specified permanent deformation usually specified as a percentage of the original length.
References in periodicals archive ?
In both alloys, the longer the exposure time, the lower the elongation and reduction of area became while showing a slight increase in the proof stress. Especially noteworthy is that the rate of lowering of elongation and reduction of area in relation to the exposure time is lower in Ti-72SiCN than in Ti-6242S.
Strength properties, including proof stress, were determined in static uniaxial tension test on testing machine Instron of 1116 type.
Limited Tenders are invited for 1)Cold Rolled Sealing Strips -500 N/Sq Mm Min.0.2 Percent Proof Stress, Grade X 20Cr Mo13kg Spec., Drg.
Limited Tenders are invited for 1)1.00 X 7.75 Mm Copper Winding Wire - Proof Stress Pccw With Lpd Of 2290 Mr As Per Item 1 Of Annexure 24064455 Rev-00.
Limited Tenders are invited for 1)Alloy Steel Bar Flats 600 N/Sq Mm 0.2 Percent Proof Stress Gr X22crmov121 To Spec Hw10687 Rev 04 & Size 42 X 24 Mm In Random Length Of 3 To 6 Metres.