proof stress


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proof stress

n
(General Engineering) engineering the equivalent of yield stress in materials which have no clearly defined yield point
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Caption: Figure 9: Comparison of mechanical properties of Sn-5Sb [18] and Sn- 10Sb: (a) tensile strength, (b) 0.1% proof stress, and (c) elongation.
From the results of four-point bending tests, the proof stress, [[sigma].sub.P], in air and PS were determined as 200 and 100 MPa, respectively.
[14, 15] proposed an index relationship method to express the proof stress of magnesium-based alloys AZ31 and AZ91 in hot working processes.
For the load corresponding to proof stress, the value of real stress [[sigma].sub.r02] was calculated in accordance with the formula (1) [9]