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Finite Element Simulation of Low Velocity Impact Damage on an Aeronautical Carbon Composite Structure

Abstract : Low velocity barely visible impact damage (BVID) in laminated carbon composite structures has a major importance for aeronautical industries. This contribution leads with the development of finite element models to simulate the initiation and the propagation of internal damage inside a carbon composite structure due by a low velocity impact. Composite plates made from liquid resin infusion process (LRI) have been subjected to low energy impacts (around 25 J) using a drop weight machine. In the experimental procedure, the internal damage is evaluated using an infrared thermographic camera while the indentation depth of the face is measured by optical measurement technique. In a first time we developed a robust model using homogenised shells based on degenerated tri-dimensional brick elements and in a second time we decided to modelize the whole stacking sequence of homogeneous layers and cohesive interlaminar interfaces in order to compare and validate the obtained results. Both layer and interface damage initiation and propagation models based on the Hashin and the Benzeggagh-Kenane criteria have been used for the numerical simulations. Comparison of numerical results and experiments has shown the accuracy of the proposed models.
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Submitted on : Thursday, July 7, 2016 - 3:55:16 PM
Last modification on : Friday, July 8, 2016 - 4:34:19 PM
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Roger Pierre Lemanle Sanga, Christian Garnier, Olivier Pantalé. Finite Element Simulation of Low Velocity Impact Damage on an Aeronautical Carbon Composite Structure. Applied Composite Materials, Springer Verlag (Germany), 2016, pp.0. ⟨10.1007/s10443-016-9508-1⟩. ⟨hal-01343147⟩



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