Effect of fatigue strain range on properties of high-strength structural steel |
| |
| Authors: | D Grenier S Das M Hamdoon |
| |
| Institution: | 1. Department of Civil and Environmental Engineering, University of Western Ontario, N6A 3K7 London, ON, Canada;2. Department of Civil and Environmental Engineering, University of Windsor, Windsor, ON, Canada;3. Department of Mechanical, Automotive, and Materials Engineering, University of Windsor, Windsor, ON, Canada |
| |
| Abstract: | Ship hulls are built with stiffened steel plates and experience continuous fatigue load cycles when in service. Mechanical properties of the steel are expected to change due to the application of these cyclic loads. Therefore, the mechanical properties of the material at various levels of fatigue damage need to be understood. This paper presents two test series that were conducted to determine the effect of two different strain ranges (2000 and 3000 micro strains) of fatigue cycles on the mechanical properties of high-strength structural steel. The test results indicate that the cycle-dependent behaviours of the material can cause a slight increase or a significant decrease in the yield strength when compared to its virgin state. However, the ductility of the steel does not change much as the strain cycle increases. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
