Search results for "Multi-impact"
showing 3 items of 3 documents
Numerical modelling of low velocity multi-impact test on different stacking sequences
2019
The use of composite materials in the industrial field has been growing significantly for many years. This increase is explained by the fact that the industry, especially aeronautics which was pioneering in this field, is interested in the lightening of structures in order to be able to take up the new environmental challenges. Whether in the aeronautical field or in the land transport sector, structural elements may undergo multi-impactsor impact. Even at low velocitypose a threat to the integrity of the material and the structure itself. The objective of this work is to propose a numerical model to determine the damage within a composite structure subjected to low energy multi-impact. The…
Experimental and numerical study on composites laminates subjected to multi-impacts
2019
Composite carbon/epoxy materials are widely used in the industrial field as aeronautics and as land transport. These materials are often subjected to increasingly stringent conditions of use. They must withstand multiple impacts, the impact of objects such as hailstones, ballast, or even birds.In order to offer designers of composite structures relevant designing elements, we are interested in the first experimental time of the multi-impact tolerance of different stratifications (QIQH45, QIQH60, AERO) of different energies (10J, 15J, 20J). The study of these two parameters made it possible to define a hierarchy among the stratifications studied with the level of damage.The evaluation of the…
Effect of Multi-Impact on Qiqh Carbon/Epoxy Composite LaminateEffect of Multi-Impact on Qiqh Carbon/Epoxy Composite Laminate
2018
This work is motivated by increasingly used of composite structures under severe loading conditions. During their use, these materials are often subjected to impact as for example, in the aeronautical field the fall of hailstone on structure composites. In fact, the low energy traditional impact tests don’t allow to see the evolution of the damage and don’t permit also to compare the best tolerance to impact between different stratifications. The multi-impact tests made it possible to find a solution to this problem. In this work, multi-impact tests are performed on three carbon/epoxy stratifications. The final goal is to predict the durability of the composite structures during impact load…