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Fracture mechanics and optimal design
Author(s) -
Pitukhin A. V.
Publication year - 1992
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620340316
Subject(s) - reliability (semiconductor) , fracture (geology) , fracture mechanics , spiral (railway) , structural engineering , optimal design , function (biology) , reliability engineering , computer science , mathematics , engineering , mechanics , mechanical engineering , statistics , geotechnical engineering , physics , power (physics) , quantum mechanics , evolutionary biology , biology
The purpose of this paper is to present a mechanical fracture method for the optimal design of machine components. A single criterion design is used. Mean annual cost expenses are the objective function. They depend on the survival function. Statistical fracture mechanics methods are able to estimate machine components reliability dependence on crack‐like defect length. A numerical example is given to demonstrate the application of this method. It is recommended to evaluate the reliability of spiral cylindrical springs too.