| 摘要 |
diagnosis of loaded materials; determination of long-term strength of structures at designing and operating stages. SUBSTANCE: proposed method consists in measurement of short-time strength and temperature of material under test followed by plotting temperature graph versus short-time strength sigmab(T).. Absolute temperature T*, corresponding to point of intersection is determined by linear extrapolation till intersection with abscissa axis. Long-term strength sigmat(T) during period "t" (s) at absolute temperature T is calculated from the following relationship sigmat(T) = sigmab(T){1-lg(t)/13[(T*/T)-1]}. EFFECT: reduced consumption of labor required for determination of long-term strength of material. 2 dwg
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