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This article is cited in 8 scientific papers (total in 8 papers)
Effect of pulse shape on spall strength
V. I. Smirnova, Yu. V. Petrovb a Petersburg State Transport University, St. Petersburg, 198103, Russia
b Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg, 199178, Russia
Abstract:
This paper analyzes the effect of the time-dependent shape of a load pulse on the spall strength of materials. Within the framework of a classical one-dimensional scheme, triangular pulses with sections of signal increment and attenuation and without sections of signal increment are considered. Calculation results for the threshold characteristics of fracture for rail steel are given. The possibility of optimization of fracture by selecting a loading time with the use of an introduced characteristic of dynamic strength (pulse fracture capacity) is demonstrated. The study is carried out using a structure-time fracture criterion
Keywords:
spall, incubation time, structure-time criterion, threshold power pulse, pulse fracture capacity.
Received: 19.07.2016 Revised: 30.03.2017
Citation:
V. I. Smirnov, Yu. V. Petrov, “Effect of pulse shape on spall strength”, Prikl. Mekh. Tekh. Fiz., 59:2 (2018), 134–141; J. Appl. Mech. Tech. Phys., 59:2 (2018), 303–309
Linking options:
https://www.mathnet.ru/eng/pmtf602 https://www.mathnet.ru/eng/pmtf/v59/i2/p134
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