Open AccessImprovement of car repairability based on the material destruction assessment during its operation
Author(s) -
Н. А. Кузьмин,
D. A. Goncharova,
Г. В. Пачурин,
Aleksey Filippov,
I.A. Korotunova
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/695/1/012029
Subject(s) - hardening (computing) , deflection (physics) , maintainability , service life , structural reliability , structural integrity , structural engineering , structural material , reliability (semiconductor) , forensic engineering , computer science , materials science , mechanical engineering , reliability engineering , engineering , composite material , probabilistic logic , power (physics) , physics , layer (electronics) , quantum mechanics , artificial intelligence , optics
Parts and structural elements of vehicles during operation are affected by cyclic loads and various temperatures. At the same time, more than 80% of all types of metal structures destruction are fatigue-like, which leads to huge financial losses, and often to fatal accident. Therefore, issues of improving the reliability and safe operation of automobile parts subjected to cyclic loads in air at different temperatures are important in modern industrial science. That’s why, it is necessary to know the laws of fatigue behavior of structural materials obtained by different types and modes of technological processing in specific operating conditions in order to predict their operational reliability increase. Changes in the metal during fatigue are directly reflected on the curves of changes in the samples current deflection, since they reflect the antogonism of two mutually opposite processes - hardening and softening, directly related to the processes that occur in the material structure during fatigue. This article presents the possible analysis of the fatigue failure kinetics of some test structural materials using the curves of the samples current deflection. The assessment of structural materials destruction allows us to choose structural materials for car parts, taking the conditions of its operation, types and modes of its manufacturing technology into account in order to increase its maintainability and service life.