Chandra Veer Singh | BSc (Dayalbagh), MTech (IISc), PhD (Texas A&M), PEng
Associate Professor & Erwin Edward Hart Endowed Professor
Office: WB 137
Research Group: Computational Materials Engineering (CME) Laboratory
** Positions available for graduate students; please contact Professor Singh for more information. Prospective graduate students must meet MSE Department admissions criteria for official acceptance. **
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Improving performance limits of novel materials
In order to meet 21st Century challenges, we need to design and manufacture novel materials that are strong, light weight, durable and multifunctional. Despite significant breakthroughs in recent decades, materials fail at 1/10th or less of their intrinsic limits. This failure of materials is the principle bottleneck for developing future energy, healthcare, aerospace and automotive technologies.
In the past, advances in materials science involved extensive laboratory testing coupled with a healthy dose of guesswork. Often, this approach is expensive and time-consuming. Computational Materials Engineering (CME) permits controlled experimentation on computers and assists in designing novel materials. We employ a combination of newly developed CMS techniques to investigate following research problems:
Atomistic modeling of nano-scale fracture and failure
Our lab uses a combination of modern atomistic modeling techniques (Molecular Dynamics, Density Functional Theory) to develop a more fundamental understanding of the deformation and failure mechanisms in a variety of new-age materials such as graphene, nano-composites, nuclear and energy storage materials.
Improving strength and fracture properties of nano-composites used in tissue engineering through atomistic based multiscale modeling
Tissue damage due to congenital diseases, accidents and end-stage organ failures affects millions of people worldwide. Fortunately, it is now possible to engineer tissues in vitro that can specifically meet the needs of individual patients. Carbon nanotubes blended with Chitosan show significant improvement in mechanical properties such as stiffness and hardness. However, their interfacial strength and fracture toughness properties fall below expectations. By investigating failure characteristics, we develop a route for improving structural properties of these novel materials.
Developing efficient energy storage materials
By employing modern electron structure calculation techniques, our team tries to improve energy storage capabilities of nano-structured materials.
Designing ultra-strong alloys by nanostructuring
The strength of alloys comes from a variety of hardening mechanisms such as precipitation hardening, solid-solution hardening, grain boundary hardening etc. Until now, development of these alloys has been empirical in nature. By combining atomistic and continuum simulation approaches, we investigate different strength contributions and develop new alloys that have optimum strength and hardness characteristics.
Talreja R and Singh CV (available March, 2012) Damage and Failure of Composite Materials, Cambridge University Press, London.
B. Book Chapter(s)
Talreja, R and Singh, CV (2008) Multiscale Modeling for Damage Analysis. In: Kwon YW, Allen D, Talreja R (Eds), Multiscale Modeling and Simulation of Composite Materials and Structures, pp 529-578.
C. Refereed Journal Articles
Singh, CV, Mateos, AJ and Warner, DH (2011). Atomistic simulations of dislocation-precipitate interactions emphasize importance of cross-slip, Scripta Mater. vol 64:5, pp 398-401. doi:10.1016/j.scriptamat.2010.10.041.
Singh, CV and Warner, DH (2010) Mechanisms of Guinier–Preston zone hardening in the athermal limit, Acta Mater. vol 58:17, pp 5797-5805. doi:10.1016/j.actamat.2010.06.055.
Singh, CV and Talreja, R (2010) Evolution of ply cracks in multidirectional composite laminates, Int J Solids Str. vol 47:10, pp 1338-1349. doi:10.1016/j.ijsolstr.2010.01.016.
Singh, CV and Talreja, R (2009) A synergistic damage mechanics approach for composite laminates with matrix cracks in multiple orientations. Mech Mater. Vol 41, pp 954-968. doi:10.1016/j.mechmat.2009.02.008.
Li, S, Singh, CV and Talreja, R (2009) A representative volume element based on translational symmetries for FE analysis of cracked laminates with two arrays of cracks. Int J Solids Str. Vol 46, pp 1793-1804. doi: 10.1016/j.ijsolstr.2009.01.009.
Singh, CV and Talreja, R (2008) Analysis of multiple off-axis ply cracks in composite laminates. Int J Solids Str. Vol 45:16, pp 4574-4589. doi:10.1016/j.ijsolstr.2008.04.004.