1. Use of lightweight material in vehicle affordably' is very important. 2. Multi-phase material can be used to improve mechanical property and optimize performance. One of the key challenges in using such materials is Knowledge of properties. Material model for use in CAE to help design and optimization. 3. For steel - we identify following as key challenges Method to account microstructure in estimating elastic modulus (which is expected to be anisotropic). 4. For fiber reinforced polymer - we identify following as key challenges Method to account for fiber orientation, fiber length and fiber distribution in estimating material properties and developing material model. Method to account for resin crystal structure and adhesion between resin and fiber. 5. Since condition of multiphase in such material, highly depends on processing. It is very important to develop Methods to simulate processes. Method to verify the microstructures.
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