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An investigation of in-plane dynamic behavior of adhesively-bonded composite joints under dynamic compression at high strain rate

Abstract : This study examines the behaviour of adhesively-bonded composite joints under dynamic compression tests. The purpose of this work is to use the split Hopkinson pressure bar (SHPB) for the dynamic characterization of adhesively bonded joints subjected to in-plane compression loading and in particular, the effect of strain rate on the mechanical behaviour and the damage kinetics. These joints are studied using glass/vinylester composite materials which are frequently used in naval applications Compression tests are performed at different strain rates using SHPB and high speed camera has been used to follow the damage progression. The experimental results have shown that the dynamic properties change with respect to the change in strain rate. Fibre buckling and delamination are the main damage criterias seen in the specimens under in-plane compressive tests. Therefore, this study not only allows us to understand the dynamic response of the adhesively bonded joints under dynamic compression but also enables us to establish damage models based on strain rate effect, for structure design purposes.
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Sonia Sassi, Mostapha Tarfaoui, Hamza Ben Yahia. An investigation of in-plane dynamic behavior of adhesively-bonded composite joints under dynamic compression at high strain rate. Composite Structures, Elsevier, 2018, 191, pp.168 - 179. ⟨10.1016/j.compstruct.2018.02.057⟩. ⟨hal-01727700⟩

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