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Influence of tensile impact and strain rate on the response of adhesively bonded single lap joints
| Content Provider | Semantic Scholar |
|---|---|
| Author | Soltannia, Babak Ahmadi-Moghadam, B. Taheri, F. |
| Copyright Year | 2013 |
| Abstract | Adhesively bonded joints (ABJs) are increasingly used in automotive, marine, offshore, and oil and gas industries, to mate both metallic and fiberreinforced polymer composite (FRP) structural components. Adhesively bonded FRPs offer several advantages such as high strength and stiffness to weight ratios, good fatigue and corrosion resistance, controllable damage tolerance, and high energy absorption capability, which make them more efficient compared to other type of mechanical fasteners [1-3]. Crashworthiness, improved damage tolerance, energy absorption capability, and safety requirements are important factors for the design of light weight composite structures, especially in automotive and marine vessel applications. However, a major concern in the use of adhesives in those applications has been the lack of adequate database in regards to performance of ABJ at high rates of strain and impact loads. Therefore, mechanical characterization of ABJs at high loading rates is vital for achieving reliable designs [4]. The overall goal of our study is to develop a relatively inexpensive and strong adhesive for common engineering applications. Therefore, various aspects of ABJ are being investigated. In this paper, the effect of high strain rate on the mechanical response of adhesively bonded single lap joint of composite adherends under impact at 2.04E+5 mm/min is investigated. Unidirectional E-glass fiber reinforced epoxy laminate was used as the adherends. The high strain rate tests were accomplished using a modified instrumented pendulum, equipped with a specially designed impact tension apparatus. The results indicated that ABJs tested under highest loading rate exhibited increased stiffness and strength. Strain rate dependent properties derived from the experimental data will be used in the near future in conjunction with finite element analysis to conduct parametric study and optimize the performance of such joints. The observed failure mechanisms deduced from scan electron microscopic study of the failed specimens will also be presented. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://confsys.encs.concordia.ca/ICCM19/AllPapers/FinalVersion/SOL81352.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
