14 MarPhD DissertationEffects of matrix properties on microscale damage in thermoplastic laminates under quasi-static and impact loading
Effects of matrix properties on microscale damage in thermoplastic laminates under quasi-static and impact loading
  • Husam Wafai
  • COHMAS, KAUST
  • Wednesday, March 14, 2018
  • 01:00 PM - 02:00 PM
  • Building 4, Level 5, Room 5209
2018-03-14T13:002018-03-14T14:00Asia/RiyadhEffects of matrix properties on microscale damage in thermoplastic laminates under quasi-static and impact loadingBuilding 4, Level 5, Room 5209Emmanuelle Sougrat

​Abstract:

Thermoplastics reinforced with continuous fibers are very promising building materials for the auto industry to reduce the weight of vehicles and deliver a high impact tolerance at the same time. Polypropylene is an abundant thermoplastic, and its glass fibers composites make a low-cost solution that is suitable for mass production. But the adoption of such composites requires a deep understanding of their mechanical behavior under the relevant loading conditions.  
This Ph.D. work aims to understand the damage process in continuous glass fiber-reinforced polypropylene in details. It focuses in particular on developing an approach for microscale observation of damage during the out-of-plane loading process and using these observations for both qualitative and quantitative evaluation of the composite. The approach is applied to two kinds of polypropylene composites, one of them is specially designed to withstand impact. The comparison between the two types of composites at slow and fast loading cases will shed some light on the effect of the polymer properties on the behavior of composites under out-of-plane loading.

Bio:

Obtained his B.Sc. degree in mechanical engineering from Damascus University in 2002 with honor degree (1st on class). In 2005, he joined CAU Kiel University, Germany for a master degree in material science & engineering and graduated in 2007. Then he worked for two years in Helmholtz Zentrum Geesthacht (HZG), Germany, on several projects related to numerical simulation. 
In 2010, he joined KAUST as a PhD student, and in 2014 he moved to the group of Composites and Heterogeneous Materials Analysis & Simulation (COHMAS), lead by Prof. Gilles Lubineau, to study damage in a thermoplastic-fiber composite. The project is sponsored by SABIC. 
At the moment, he has published one first-author paper and submitted two more for publishing. He also co-authored eight published papers in total. 



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  • Emmanuelle Sougrat

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