Abstract

Buckling Behavior of Anisotropic Composite Plate and Cylindrical  Shell: Comparative Study between FEM and Semi-analytical Solution

The demand for lighter and more efficient structure has led to the increased application of composite in aerospace structures. Currently, many commercial airplanes are using more than 20% of advanced composite materials. However, buckling is one of the most design criterion and must be considered early in the preliminary design phase. Deficiency in design methodology may produce undesirable expenses arising from re-design or any changes to the final structure. Thus, special attention must be taken in the design analysis of composite panels. Fast and accurate methodology is needed to characterize buckling of plate and cylindrical shell made of anisotropic material.The presentation focuses on comparative studies between semi-analytical and Finite Element Method. It shows the advantage of the method developed to assess the buckling behavior of composite structure subject to compression, shear load and their combination.

About the Speaker

Dr. Said Jazouli, Bombardier

Engineering Stress Specialist

Since 1999, Dr. Jazouli has been involved in R&D projects, has been acting as a research associate and has taught graduate courses in the field of mechanical engineering, material science and computer science.

Since 2003 he has worked in the aerospace industry for Airbus France A380, L3-Communication Canada (F-18), Heroux Devtek (Sirkorsky, Dassault, and Learjet programs) and Bombardier Aerospace on the C-Series program. At Bombardier, he has been working as a member of the core engineering and the aerostructure group in composite methodology development. In parallel to those activities, he has always taken part in collaborative projects between Bombardier and four Canadians universities in the field of composite material via Consortium for Research and Innovation in Aerospace in Quebec. He has also trained many MITACS graduate level interns. During that time, he has published numerous international papers in the field of material ageing, delamination and stability of composite structures. He also acts as a Stress Specialist analyst for metallic and composite structures performing static, fatigue and damage tolerance analyses.

Said received his BS degree in solid mechanic from Hassan II University in Morocco in 1992, his Master degree in material science from University of Poitiers in France and a Master degree in aerospace engineering from Polytechnic of Montreal Canada. In 1999, he received his Ph.D in Solid mechanic from Poitiers University in France (CNRS associate) with high honor. Said is member of Ordre des Ingénieurs du Québec.