| Autor: |
Eric Deyerl, Mehrdad Haghi, Robert Sire, Robert Kadlec, Russell Westmann |
| Rok vydání: |
1998 |
| Předmět: |
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| Zdroj: |
Technology, Law and Insurance. 3:25-31 |
| ISSN: |
1359-9372 |
| DOI: |
10.1080/135993798349631 |
| Popis: |
A combined analytical/experimental approach was utilized to analyse failures of steel axles in a fleet of refrigeration semi-trailers equipped with dual rear axle air-ride suspensions. Experimental data were used in combination with an analytical model to identify the cause of the axle failures, estimate time to failure, and evaluate the relative effectiveness of proposed design changes to minimize future axle failures. The centrepieces of the program were finite element and fracture mechanics models of the axles. Experiments conducted in support of the analytical models consisted of: (1) field and laboratory inspection of failed axles to determine failure mode and the size of pre-existing flaws; (2) full scale trailer road testing to determine the service load spectrum; (3) fatigue tests on laboratory specimens to determine material properties; and, (4) full scale axle fatigue testing to calibrate and verify the ability of the analytical methods to predict axle lifetimes, and also to evaluate empirically... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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