Speaker: Dr. Mohammad Sadegh Rouhi
Researcher
Chalmers University of Technology
Title: CAE tools for composite body concept assessment
Local Organizer: Dr. Nima Naderi
Time: Wednesday, April 6, 2016, 14:00
Location: Institute of Materials and Energy (MERC)
Abstract:
Absorbing energy by crushing of composite structures is strongly dependent on the layup, fiber architecture and type of resin. Modeling of the crash behavior of composites is therefore highly influenced by the composite material system chosen, and current constitutive models must be improved to include/account for the inherent properties from the manufacturing step.
The ultimate goal of the study is to optimize the material system and manufacturing method for the required performance in terms of energy absorption and cost. A first outcome of the study will be to provide information regarding the properties of the final manufactured composite material such as residual stresses and effects of defects. These properties are then used in the development of crash models. A robust link between manufacturing, experiments and crushing simulations is vital where there should be a generic routine towards the data transfer and constitutive models. The study of effects of defects will affect the input data into the material and constitutive models in form of change in strength and stiffness properties of the material.