Loading...

Experimental and numerical fatigue life study of cracked AL plates reinforced by glass/epoxy composite patches in different stress ratios

Hosseini, K ; Sharif University of Technology | 2021

408 Viewed
  1. Type of Document: Article
  2. DOI: 10.1080/15397734.2020.1714448
  3. Publisher: Bellwether Publishing, Ltd , 2021
  4. Abstract:
  5. In this study, the fatigue behavior of composite reinforced cracked aluminum 1050 plates is investigated experimentally and numerically. The tests are conducted in four different stress ratios between 0 and 1. At first step, plates with similar cracks and geometries have been prepared. Then the glass/epoxy patches have been attached to the cracked plates using Araldite 2015 adhesive. Fatigue load has been applied to three cases of samples including non-patch, one-side patch and two-side patch, where in all stress ratios the maximum force is considered constant. A three-dimensional finite element analysis is developed in ABAQUS. A good correlation between finite element results and the corresponding experimental data was observed. The results illustrated that two-side patch sample has the most fatigue strength. It is found that for two-side patch samples, fatigue life has been increased approximately 2000% and 4800% in the stress ratios R = 0 and 0.5, respectively in comparison with the non-patched samples. Communicated by Krzysztof Kamil Żur. © 2020 Taylor & Francis Group, LLC
  6. Keywords:
  7. ABAQUS ; Adhesives ; Aluminum alloys ; Aluminum plating ; Cracks ; Fatigue testing ; Finite element method ; Glass ; Reinforcement ; Stress intensity factors ; Composite patches ; Fatigue behavior ; Fatigue strength ; Finite element simulations ; Glass/epoxy composite patches ; Good correlations ; Stress ratio ; Three dimensional finite element analysis ; Fatigue of materials
  8. Source: Mechanics Based Design of Structures and Machines ; Volume 49, Issue 6 , 2021 , Pages 894-910 ; 15397734 (ISSN)
  9. URL: https://www.tandfonline.com/doi/abs/10.1080/15397734.2020.1714448?journalCode=lmbd20