Modeling of residual stress relaxation of fatigue in 2024-T351 aluminium alloy
The initial induced compressive residual stresses relax during component operating life and it is important to consider the relaxation phenomenon in the design of the component. In this study, 2024-T 351 aluminium alloy specimens were shot peened under three different shot-peening intensities. Cycli...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Elsevier
2011
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/15666/ http://psasir.upm.edu.my/id/eprint/15666/1/Modeling%20of%20residual%20stress%20relaxation%20of%20fatigue%20in%202024.pdf |
| _version_ | 1848842741846376448 |
|---|---|
| author | Zaroog, Omar Suliman Ali, Aidy Sahari, Barkawi Zahari, Rizal |
| author_facet | Zaroog, Omar Suliman Ali, Aidy Sahari, Barkawi Zahari, Rizal |
| author_sort | Zaroog, Omar Suliman |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The initial induced compressive residual stresses relax during component operating life and it is important to consider the relaxation phenomenon in the design of the component. In this study, 2024-T 351 aluminium alloy specimens were shot peened under three different shot-peening intensities. Cyclic tests for two load magnitudes were performed for 1, 2, 10, 1000 and 10,000 cycles. The initial and final residual stresses and the cold work after each loading cycle were measured for the three shot-peening intensities and for the two load magnitudes using X-ray diffraction. The initial and final microhardnesses after each loading cycle load were also measured for the three shot-peening intensities. The results showed that the reduction in the residual stress, microhardness and cold work are dependent on the applied load. An empirical model was proposed to estimate the residual stress relaxation. The presented model incorporates parameters including the degree of cold work, initial induced residual stress and the number of applied loading cycles. |
| first_indexed | 2025-11-15T08:03:57Z |
| format | Article |
| id | upm-15666 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:03:57Z |
| publishDate | 2011 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-156662015-11-18T03:18:20Z http://psasir.upm.edu.my/id/eprint/15666/ Modeling of residual stress relaxation of fatigue in 2024-T351 aluminium alloy Zaroog, Omar Suliman Ali, Aidy Sahari, Barkawi Zahari, Rizal The initial induced compressive residual stresses relax during component operating life and it is important to consider the relaxation phenomenon in the design of the component. In this study, 2024-T 351 aluminium alloy specimens were shot peened under three different shot-peening intensities. Cyclic tests for two load magnitudes were performed for 1, 2, 10, 1000 and 10,000 cycles. The initial and final residual stresses and the cold work after each loading cycle were measured for the three shot-peening intensities and for the two load magnitudes using X-ray diffraction. The initial and final microhardnesses after each loading cycle load were also measured for the three shot-peening intensities. The results showed that the reduction in the residual stress, microhardness and cold work are dependent on the applied load. An empirical model was proposed to estimate the residual stress relaxation. The presented model incorporates parameters including the degree of cold work, initial induced residual stress and the number of applied loading cycles. Elsevier 2011-02 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15666/1/Modeling%20of%20residual%20stress%20relaxation%20of%20fatigue%20in%202024.pdf Zaroog, Omar Suliman and Ali, Aidy and Sahari, Barkawi and Zahari, Rizal (2011) Modeling of residual stress relaxation of fatigue in 2024-T351 aluminium alloy. International Journal of Fatigue, 33 (2). pp. 279-285. ISSN 0142-1123 10.1016/j.ijfatigue.2010.08.012 English |
| spellingShingle | Zaroog, Omar Suliman Ali, Aidy Sahari, Barkawi Zahari, Rizal Modeling of residual stress relaxation of fatigue in 2024-T351 aluminium alloy |
| title | Modeling of residual stress relaxation of fatigue in 2024-T351 aluminium alloy |
| title_full | Modeling of residual stress relaxation of fatigue in 2024-T351 aluminium alloy |
| title_fullStr | Modeling of residual stress relaxation of fatigue in 2024-T351 aluminium alloy |
| title_full_unstemmed | Modeling of residual stress relaxation of fatigue in 2024-T351 aluminium alloy |
| title_short | Modeling of residual stress relaxation of fatigue in 2024-T351 aluminium alloy |
| title_sort | modeling of residual stress relaxation of fatigue in 2024-t351 aluminium alloy |
| url | http://psasir.upm.edu.my/id/eprint/15666/ http://psasir.upm.edu.my/id/eprint/15666/ http://psasir.upm.edu.my/id/eprint/15666/1/Modeling%20of%20residual%20stress%20relaxation%20of%20fatigue%20in%202024.pdf |