A5109600376- Cellular and Composite Structures
- High-Velocity Impact and Material Behavior
- Fluid Dynamics Simulations and Interactions
- Additive Manufacturing and 3D Printing Technologies
- Automotive and Human Injury Biomechanics
- Polymer Foaming and Composites
- Aluminum Alloys Composites Properties
- Electric Motor Design and Analysis
- Polymer composites and self-healing
- Structural Behavior of Reinforced Concrete
- Bone health and osteoporosis research
- High-pressure geophysics and materials
- Induction Heating and Inverter Technology
- Magnesium Alloys: Properties and Applications
- 3D Surveying and Cultural Heritage
- Pickering emulsions and particle stabilization
- Aluminum Alloy Microstructure Properties
- Ion-surface interactions and analysis
- Design Education and Practice
- Spondyloarthritis Studies and Treatments
- Mechanical Behavior of Composites
- Bone and Joint Diseases
- Engineering and Technology Innovations
- Structural Response to Dynamic Loads
Rajshahi University of Engineering and Technology
2025
Australian National University
2019-2023
University of Canberra
2016-2021
UNSW Sydney
2016-2021
Stamford University Bangladesh
2020
Australian Defence Force Academy
2017
UNSW Canberra
2016
The low-velocity impact response of closed-cell aluminium foams using various shaped indenters has been investigated. Impact tests were conducted an instrumented drop-tower with flat, hemispherical, conical and truncated-conical indenter at energies ranging from 46.8 J to 105 J. effects variation shape velocity on mechanical properties deformation mechanisms foam have explicitly results show that the under projectile significantly depends indenters' nose initial energy. for different...
Closed‐cell foams are widely used in energy absorption and load‐bearing applications. Herein, four lightweight closed‐cell foam topologies—tetrakaidecahedron, octet, spherical, reverse hexagonal—are designed, manufactured, mechanically tested. The structures fabricated from acrylonitrile butadiene styrene using fused deposition modeling subjected to low‐velocity impact investigate their elastic, plastic, behavior under dynamic loading. Deformation mechanisms investigated explore the role of...
Abstract The present study investigates the dynamic response of reinforced concrete slabs subjected to free air blast. investigation focuses on influence altering various reinforcement parameters while keeping slab dimensions constant. Three methods increasing ratio, namely variation in number bars (VNB), radius rebars (VRB), and layers (VNL), are compared against each other. A comparative analysis between bidirectional (BR) unidirectional (UR) is also carried out, emphasizing maximum...
Biomimetics -using nature to inspire innovation- has resulted in the development of many novel materials. Wood, nature's light-weight structural material, defies mimicry at multiple scales, but its design features have been abstracted and used develop honeycomb composites limited geometric complexity. In this paper we demonstrate how it is possible more completely biomimic wood, capture exquisite mesoscale reproduce mechanical properties. We utilised micro computed tomography (XCT) image...
This paper investigates the quasi-static response of structures inspired by horse hoof wall structure. The has a laminated structure which was mimicked to develop composite using biomimicry design spiral approach. Additive manufacturing technique used create structures. intermediate layers were filled with resin material in three different layer configurations variable angles 60°, 70°, and 90°. biomimetic investigated hemispherical indenter. To further understand influence filler material,...
A pre-stressing technique for improving the ballistic performance of a circular silicon carbide tile has been tested against ø12-mm spherical steel projectile. The confining pre-stress was achieved through heat-shrunk collar and evaluated neutron diffraction ceramic-collar system. Subsequent experiments simulations impact event were used to elucidate mechanisms benefits on response. CT-scans various specimens, post-impact, show that affects trajectory Hertzian cone limits overall damage....
The present research numerically investigates shock propagation through closed-cell aluminium foam via flyer-plate impact. mechanics of deformation was elucidated using the finite element (FE) software ABAQUS/explicit. X-ray computed micro-tomography performed to render a full 3D geometry mesh for understanding detailed macrostructural response due propagation. Elastic wave and pore collapse mechanism with time were studied. free surface velocity measured at two different impact velocities...
This paper proposes the optimized design of an interior permanent magnet synchronous machine (IPMSMs) using widely used low-priced ferrite magnets. Four types IPMSM analyzed in this which has been named with different tags according to changing air gap length and width magnets (PM) machine. The analysis simply shows how efficiency performances changes by varying air-gap PM. I-shaped PM was considered thesis. To analyze torque ripple, Finite Element Analysis (FEA) simulation done Lua...
Understanding the impact response of aluminium foams is essential for assessing their energy absorption capacity under dynamic loading. In this paper, compaction behavior closed-cell foam (CYMAT ™) has been tested using plate-impact technique. Post-impacted samples have examined optical microscopy to observe microstructural changes with objective elucidating pore-collapse mechanism.