The response of a material under loading is dependent on the microstructure, i.e. arrangement of atoms into domains (like grains) and subsequent arrangement of these domains into the final microstructure. The shape, size and the distributions of the constituents has big influence on mechanical properties like strength, ductility, fracture behavior etc. Hence to have realistic predictions from full field models these aspects have to be accounted for properly in the generation of the representative volume element, which typically is the input to the full field models.
At CMRG we are working on understanding the fundamental building blocks, at each length scale of interest, that make the microstructure. This needs development of new statistics and metric to decipher the data and create tools to quantify the various aspects of it. These can then be used to generate the 3D microstructures that are truly representative of the material being studied.
Our research areas in microstructure building
- Single phase alloys
- Dual phase alloys
- Additively manufactured materials
- Composite materials
Select publications
- Staraselski, Y., Brahme, A., Mishra, R.K. and Inal, K., 2015.Reconstruction of the 3D representative volume element from the generalized two-point correlation function. Modelling and Simulation in Materials Science and Engineering, 23(1).
- Staraselski, Y., Brahme, A., Inal, K. and Mishra, R.K., 2013. Analytical estimation of distance–disorientation function of the material microstructure. Philosophical Magazine, 93(24), pp.3314-3331.
- Brahme, A., Staraselski, Y., Inal, K. and Mishra, R.K., 2012. Determination of the minimum scan size to obtain representative textures by electron backscatter diffraction. Metallurgical and Materials Transactions A, 43(13), pp.5298-5307.
