proportional limit

(redirected from limit of proportionality)
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pro·por·tion·al lim·'it

the greatest stress that a material is capable of sustaining without any deviation from proportionality of stress to strain (Hooke law).
References in periodicals archive ?
[15] EN 14651, Test method for metallic fibre concrete--Measuring the flexural tensile strength (limit of proportionality (LOP), residual).
where 398 is the limit of proportionality of not used steel, 425 is the yield strength of not used steel, 601 is the tension strength of not used steel and 1235 is the fracture stress of not used steel.