Loading…
Impact fatigue in adhesive joints
One of the forms of a vibro-impact effect in engineering components is impact fatigue (IF) caused by a cyclic repetition of low energy, low-velocity impacts, for instance, in aerospace structures. It can have a highly detrimental impact on performance and reliability of such components, exacerbated...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Default Article |
| Published: |
2008
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/2134/3782 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1818174846963548160 |
|---|---|
| author | Vadim Silberschmidt Juan P. Casas-Rodriguez Ian A. Ashcroft |
| author_facet | Vadim Silberschmidt Juan P. Casas-Rodriguez Ian A. Ashcroft |
| author_sort | Vadim Silberschmidt (1248129) |
| collection | Figshare |
| description | One of the forms of a vibro-impact effect in engineering components is impact fatigue (IF) caused by a cyclic repetition of low energy, low-velocity impacts, for instance, in aerospace structures. It can have a highly detrimental impact on performance and reliability of such components, exacerbated by the fact that in many cases it is disguised in loading histories by non-impact loading cycles with higher amplitudes. Since the latter are traditionally considered as most dangerous in standard fatigue, IF has not yet received deserved attention; it is less studied and practically unknown to specialists in structural integrity. Though there is a broad understanding of the danger of high-energy single impacts, repetitive impacting of components has been predominantly studied for very short series. This paper aims at the analysis of IF of adhesively bonded joints, which are becoming more broadly used in aerospace applications. The study is implemented for two types of typical adherends – an aluminium alloy and a carbon-fibre reinforced composite – and an industry-relevant epoxy adhesive. Various stages of fatigue crack development in adhesively bonded joints are studied for the conditions of standard and IF. The results obtained – in terms of crack growth rates, fatigue lives, and microstructures of fracture surfaces – are compared for the two regimes in order to find similarities and specific features. |
| format | Default Article |
| id | rr-article-9561470 |
| institution | Loughborough University |
| publishDate | 2008 |
| record_format | Figshare |
| spelling | rr-article-95614702008-01-01T00:00:00Z Impact fatigue in adhesive joints Vadim Silberschmidt (1248129) Juan P. Casas-Rodriguez (7203062) Ian A. Ashcroft (7125329) Mechanical engineering not elsewhere classified Impact fatigue Adhesive Crack growth Adhesively bonded joints Mechanical Engineering not elsewhere classified Mechanical Engineering One of the forms of a vibro-impact effect in engineering components is impact fatigue (IF) caused by a cyclic repetition of low energy, low-velocity impacts, for instance, in aerospace structures. It can have a highly detrimental impact on performance and reliability of such components, exacerbated by the fact that in many cases it is disguised in loading histories by non-impact loading cycles with higher amplitudes. Since the latter are traditionally considered as most dangerous in standard fatigue, IF has not yet received deserved attention; it is less studied and practically unknown to specialists in structural integrity. Though there is a broad understanding of the danger of high-energy single impacts, repetitive impacting of components has been predominantly studied for very short series. This paper aims at the analysis of IF of adhesively bonded joints, which are becoming more broadly used in aerospace applications. The study is implemented for two types of typical adherends – an aluminium alloy and a carbon-fibre reinforced composite – and an industry-relevant epoxy adhesive. Various stages of fatigue crack development in adhesively bonded joints are studied for the conditions of standard and IF. The results obtained – in terms of crack growth rates, fatigue lives, and microstructures of fracture surfaces – are compared for the two regimes in order to find similarities and specific features. 2008-01-01T00:00:00Z Text Journal contribution 2134/3782 https://figshare.com/articles/journal_contribution/Impact_fatigue_in_adhesive_joints/9561470 CC BY-NC-ND 4.0 |
| spellingShingle | Mechanical engineering not elsewhere classified Impact fatigue Adhesive Crack growth Adhesively bonded joints Mechanical Engineering not elsewhere classified Mechanical Engineering Vadim Silberschmidt Juan P. Casas-Rodriguez Ian A. Ashcroft Impact fatigue in adhesive joints |
| title | Impact fatigue in adhesive joints |
| title_full | Impact fatigue in adhesive joints |
| title_fullStr | Impact fatigue in adhesive joints |
| title_full_unstemmed | Impact fatigue in adhesive joints |
| title_short | Impact fatigue in adhesive joints |
| title_sort | impact fatigue in adhesive joints |
| topic | Mechanical engineering not elsewhere classified Impact fatigue Adhesive Crack growth Adhesively bonded joints Mechanical Engineering not elsewhere classified Mechanical Engineering |
| url | https://hdl.handle.net/2134/3782 |