STOchastic Multi-scale Modeling Methodologies for the Assessment of failure performance of Composite materials. - STOMMMAC

Project summary

Although composite materials offer many advantages, such as high strength-to-weight ratio, enhanced potentials for material and structure design, and many others, their potential is not realized in practice because their properties after manufacturing suffer from scatter, leading to over-designed structures. The aim of the project is to develop an original stochastic modeling methodology, based on mean-field homogenization, able to predict the probabilistic distribution of the composite material and structure responses by taking into account constituent material and microstructural uncertainties. Such a tool can then be used to tailor the manufacturing and design process in order to ensure that the expected macro-scale performance is achieved, thus minimizing material/structural oversizing. The project will focus on two types of composite materials, namely short (SFRP) and continuous (CFRP) fiber composite polymers, as well as two performance indicators: static and fatigue failure.