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- Title
Effect of Pulse Shape on Spall Strength.
- Authors
Smirnov, V. I.; Petrov, Yu. V.
- 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 signal rise and decay portions and with no signal rise portions 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.
- Subjects
STRENGTH of materials; SPALLS; MECHANICAL loads; FRACTURE mechanics; STRUCTURAL mechanics
- Publication
Journal of Applied Mechanics & Technical Physics, 2018, Vol 59, Issue 2, p303
- ISSN
0021-8944
- Publication type
Article
- DOI
10.1134/S002189441802013X