• 2016 – present: Academic and Researcher, QUT. Currently, Research Fellow in Structural Engineering, Science and Engineering Faculty
• 2015 – 2016: Assistant Professor, Aligarh Muslim University, India

 Selected list of projects undertaken 

• Asad’s research on vehicular intrusion into a building is a problem faced by many countries. The proposed pioneering research (to the best of our knowledge) will be attractive to international researchers working in related areas and will foster collaboration with them. The use of auxetic in civil engineering is new and is an emerging technology; domestic and international manufacturers are likely to take close note of this research’s outcomes.

  Benefits and outcomes from this research:

  • Vehicle intrusions into buildings, estimated at 2000/year causes trauma to occupants of the buildings and vehicles and has a major cost to the society and economy. Such a high frequency of occurrence and the adverse consequences demand a solution, which we are addressing through the proposed research. The outcome of this research will mitigate the severity of the vehicle intrusion incidents, reduce damage to buildings, save occupants in buildings and vehicles and provide socio-economic benefits to Australia.
  • The direct cost of building damage is a staggering $38.65M/year and a loss of 12,633 years of potential productive life due to incapacitation and death, both of which equate to a total loss of $49M/year. A cost effective strategy to mitigate the adverse effects of on-going vehicular intrusions into all vulnerable buildings.

  A selected list of projects undertaken include:

  Failure analysis of masonry walls subjected to low velocity impacts

  (Q1 Journal: Engineering Failure Analysis)

   

  • Finite element analysis of shear walls to validate the experimental results under low velocity impact.
  • Numerical study for the effects of slenderness, boundary condition and aspect ratios
  • This study is to reports a failure mode shapes of unreinforced masonry wall under low velocoity impact compared to static loading.
  • This paper also identifies a threshold impact energy, below which contemporary single leaf masonry walls irrespective of their boundary conditions and aspect ratio, exhibit global damage with varied failure patterns.

  Failure of masonry walls under high velocity impact – A numerical study

  (Q1 Journal: Engineering Structures)

   

  • Finite element analysis of Unreinforced masonry wall under high velocity impact
  • The investigation encompasses a homogenised masonry material model incorporating strain rate effects suitable for impact dynamic applications using a layered shell element formulation in an explicit finite element framework.
  • A new parameter term called as Damage index introduced first time in literature through this research. This Damage index is shown to be a useful parameter to assess the velocity of the impacting vehicles for forensic investigations.
  • Sensitivity of the incident velocity of the impactor to the characteristics of the global vibration and local damage of the impacted masonry wall is studied for the first time in the literature.
  • Examination of the effects of the aspect ratio, boundary conditions and the position of impact relative to the supported edges shows that these parameters are not sensitive to local impact failures.

  Characterisation of polymer cement mortar composites containing carbon fibre or auxetic fabric overlays and inserts under flexure

  (Q1 Journal : Construction and Building Materials)

   

  • An experimental investigation on the flexural response of polymer cement mortar matrix overlayed or inserted with carbon fibre or auxetic fabric layers subject to four levels of rates of loading (1–150 mm/min) was studied for the first time.
  • Seventy-two specimens made from plain polymer cement mortar, composites with auxetic and carbon fibre fabric layers were used to measured failure mode including debonding, peak load, load-deflection behaviour, longitudinal strain at peak load, ultimate stage and energy dissipation
  • The outcomes showed that Auxetic fabric composites exhibited increased energy dissipation and longitudinal strain at peak load without any sign of debonding. Carbon fibre composites, on the other hand, failed due to debonding at a lower longitudinal strain.
  • Finite element model was presented to demonstrate the debonding tendencies observed in the experiments.

  Impact mitigation of masonry walls with carbon fibre and Auxetic fibre composite renders – A numerical study

  (Q1 Journal: Structures)

  • Two strategies: use either carbon fibre or auxetic composite render for mitigating the adverse effects of such impacts  and compares the merits of the two strategies.
  • Mitigation strategy adopted based on the masonry behaviour which have relatively low strength brittle material. The rendering material should possess high energy absorption characteristics (as in auxetic composite) or high strength (as in carbon fibre composite) properties for impact damage mitigation.
  • Finite element models incorporating material and contact nonlinearities and (recently developed) carbon fabric and auxetic fabric composite renders possessing positive and negative Poisson’s ratios respectively are developed and applied on masonry structure
  • The auxetic composite render significantly minimises debonding risks, enhances energy dissipation characteristics, reduces the impact force and the impact damage on the masonry walls, compared to carbon fibre composite render.