FIELD: strength and durability tests of composite material specimens according to acoustic or electromagnetic emission at their failure. SUBSTANCE: to determine the kinetic constants of specimen material strength and durability, the number of pulses of preset duration and amplitude is measured for the period from the instant of specimen failure till its separation by main crack into parts at loading at a rate within 103 to 104 Pa/s. which makes continuous thermal tests unnecessary. EFFECT: enhanced rate of tests and reduced labour content. 1 dwg
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