I have worked on the problems of disc brake and prosthetic socket. Both of  these problems involve contact interactions which make it complicated and challenging to investigate. In addition to working on these problems, I have been also involved in the investigation of new contact  algorithms.

Disc brakes

Disc brakes are a crucial part of a vehicle. They slow or stop a vehicle by converting the kinetic energy into heat. This heat causes the disc surface temperature to rise in a short period of time. Due to the severe working conditions during operation, cracks develop on the friction surface.

Understanding the cause of these cracks by simulating with the Finite Element Analysis techniques with reasonable computational resources is one of the main goal of this research. The other major goal of his research is to extend this knowledge to the optimization of the new brake systems.

Prosthetic sockets

Understanding of the interaction between the residual limb and the prosthetic socket is very important for designing a comfortable socket. The distribution of contact pressure at the skin has been a major consideration for the purpose of socket design. Despite the improved designs of prosthetic sockets, skin problems are reported by the considerable number of  lower limb amputees.  Pressure ulcers is considered  the most common skin problem. In addition to the superficial skin problems, a subject using a prosthetic socket can also suffer from deep tissue injury (DTI).  Thus, it is also important to investigate the internal mechanical conditions in the soft tissues while considering a socket design.

This research aims to investigate the internal mechanical conditions and interface stresses while modeling the soft tissues in detail in relation to the anatomical features. Skin, fat, bones, fascia, blood vessels and muscles are represented separately, which is novel in this research. It is observed from the FEA simulation that the internal mechanical conditions are significantly different when separate material models are used for the soft tissues as compared to when the tissues are lumped.   Furthermore it is also observed that  blood pressure influences internal mechanical conditions.

Simulation of Residual Stresses in Additively Manufactured Parts

I am working on the Inherent Strain Method with the aim to improve the accuracy of predicted strain and stress in AM parts by improving the application procedure of inherent strains.