Multi-axial fatigue behaviour of a severely notched carbon steel |
| |
| Affiliation: | 1. Department of Mechanical Engineering, University of Padova, Via Venezia 1, I-35131 Padova, Italy;2. Department of Management and Engineering, University of Padova, Stradella S. Nicola 3, I-36100 Vicenza, Italy;1. Department of Civil and Industrial Engineering, University of Pisa, Italy;2. Department of Mechanical & Manufacturing Engineering, Trinity College Dublin, Ireland;3. Department of Industrial Engineering, University of Trento, Italy;1. School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;2. Center for System Reliability & Safety, University of Electronic Science and Technology of China, Chengdu 611731, China;1. Department of Engineering, University of Ferrara, Via Saragat 1, 44131 Ferrara, Italy;2. Department of Management and Engineering, University of Padua, Stradella San Nicola 3, 36100 Vicenza, Italy;3. Sacmi Imola S.C., Via Provinciale Selice 17/a, 40026 Imola (BO), Italy;1. CEMMPRE, Department of Mechanical Engineering, University of Coimbra, Rua Luís Reis Santos, 3030-788 Coimbra, Portugal;2. Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway |
| |
| Abstract: | The paper deals with multi-axial fatigue strength of notched specimens made of C40 carbon steel (normalised state), subjected to combined tension and torsion loading, both in-phase and out-of-phase (Φ=0 and 90°). V-notched specimens have been tested under two nominal load ratios, R=−1 and 0, while keeping constant and equal to the unity the biaxiality ratio, λ=σa/τa. All specimens have the same geometry, with notch tip radius and depth equal to 0.5 and 4 mm, respectively, while the V-notch angle is equal to 90°. The results determined are discussed together with those deduced under pure tension or torsion loading on plain and notched specimens as well as on small shafts with shoulders. The application of an energy-based approach allows all the fatigue data obtained from the notched specimens to be summarised in a single scatter band, in terms of the total strain energy density evaluated at the notch tip against cycles to failure. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
