| Reference : Analysis of residual stress relaxation of aluminum alloys EN AW 6061/-82 T6 under cyc... |
| Scientific journals : Article | |||
| Engineering, computing & technology : Mechanical engineering | |||
| http://hdl.handle.net/10993/48355 | |||
| Analysis of residual stress relaxation of aluminum alloys EN AW 6061/-82 T6 under cyclic loading | |
| English | |
Repplinger, Christian  [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >] | |
| Sellen, Stephan [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >] | |
| Kedziora, Slawomir [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >] | |
| Zürbes, Arno [] | |
| Maas, Stefan [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >] | |
| Oct-2021 | |
| Fatigue and Fracture of Engineering Materials and Structures | |
| Blackwell | |
| Yes (verified by ORBilu) | |
| International | |
| 8756-758X | |
| 1460-2695 | |
| Oxford | |
| United Kingdom | |
| [en] aluminum alloys ; autofrettage ; cyclic loading ; EN AW 6061 T6 ; EN AW 6082 T6 ; four-point bending ; residual stress ; stress relaxation | |
| [en] Stress relaxation describes the reduction of stress under static or cyclic loading
at a constant strain level. Several processes induce intentionally residual stresses, for example, autofrettage of thick-walled pressurized tubes to improve their fatigue life. This well-known process induces residual compressive stresses at the critical inner surface by using a single static but controlled over- loading internal pressure. Relaxation of residual stresses due to cyclic loading in service would endanger the effectiveness of autofrettage and could finally lead to unexpected fatigue failure. In this study, strain-controlled experiments up to 500,000 load cycles and amending nonlinear finite element simulations were done for the aluminum alloys EN AW 6061 T6 and EN AW 6082 T6 to study potential cyclic stress relaxation in four-point bending tests after con- trolled single static plasticization for residual stress generation. This analysis identifies almost stable residual stresses for both materials under different cyclic strain-controlled load levels. | |
| ROTAREX S.A. | |
| Researchers ; Professionals ; Students | |
| http://hdl.handle.net/10993/48355 | |
| 10.1111/ffe.13542 |
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