Waqas received his PhD in Mechanical Engineering from Beihang University, Beijing, China in 2010. He has worked in various roles since 2000 in industrial and academic settings and gained extensive multidisciplinary experience. Before joining IT Sligo, he worked as Associate Professor in Mechanical and Materials Engineering at the University of Jeddah, Saudi Arabia.

His research interests focus on damage mechanics and finite element analysis of materials at macro-to-microscale (biomaterials, aerospace-grade materials, fibre reinforced composites, and polymer materials), machining induced residual stress analysis, structural integrity analysis under dynamic loading,  and design optimization of mechanical structures by means of topology, sizing and shape optimization.

He has published research articles in leading peer-reviewed journals and presented in world-renowned conferences. He worked on design optimization of mechanical structures and developed topological-optimized configurations of aircraft tail fin ribs, wing ribs, shells with cut-outs, long machined frames, and automotive parts by applying different optimization algorithms through commercial codes. His recent research contributions were on macro-to-micro scale milling simulation of aerospace-grade aluminium alloy by employing Johnson-Cook damage parameters and damage evolution criterion in ABAQUS under the dynamic loading considering dry and cryogenic conditions.

 

Currently, he is interested in cutting mechanics and analysis of biomaterials for precise medical manufacturing applications. He is also involved in collaborative research on integrating sensors in additive manufacturing processes for the realization of the Industry 4.0 concept.

Waqas has supervised research thesis at PhD and master’s levels.  He has secured more than €60K research funding from external sources. His important funded research projects as PI and co-PI include:

Numerical modeling and simulation of macro-to-microscale milling chip for optimum cutting characteristics of AA2024T351.

The research work involved damage mechanics and analysis of macro-to--microscale milling by applying Abaqus commercial code. A parametric sensitivity analysis was performed to comprehend the chip morphology, cutting tool interface temperature, cutting reaction forces, material plastic strain and residual stress. The results were verified with experimental data.

Experimental and numerical investigation of post-machining deformation due to material and machining induced residual stress. 

This research is related to dimensional instability in machined aerospace parts due to material and machining induced residual stress. ANSYS commercial code was applied to perform the machining sequence and prediction of geometrical deformations. The predicted deformations were compared with the actual machined part through CMM inspection.

Investigation of topological optimized ribbed-stiffened design under manufacturing constraints for optimal structural performance.  

The research was focused on weight optimization of ribbed-stiffened machined structures by employing topology and shape optimization. A comparative analysis was performed by means of Abaqus topology optimization module, ANSYS topology optimization, and TOSCA commercial code to investigate the performance of optimized structure by incorporating manufacturing constraints.

Delamination in GFRP composites structures due to cyclic loading

In this research, fatigue delaminating effects were studied due to high cycle loadings. Numerical simulations of the delaminated layer under fatigue loading were compared with experimental data.

Finite element analysis of interfacial debonding in copper/diamond composites for thermal management applications

In this research, interfacial debonding in Cu/D composites subjected to steady-state and transient thermal cyclic loading were investigated. The debonding behavior was analyzed for different coefficients of thermal expansions among Cu, diamond, and Cr.

Experimental and computational analysis of dry turning parameters of AA2024-T351

The research work was focused on 2D/3D numerical turning simulation of aerospace grade aluminum alloy. A parametric sensitivity analysis was performed in Abaqus/Explicit to comprehend different cutting characteristics for sustainable operation. Simulation studies were verified with experimental data.