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Papers by Shummaila Rasheed

Research paper thumbnail of A First Step towards the Performance Enhancement of IC Engines Using a Desmodromic Valve System

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of A Thermal Analysis of Atmospheric Balloons Using Different Coating Materials

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Parametric Optimization of Gravitational Water Vortex Turbines for Enhanced Torque Generation

Research paper thumbnail of Investigation of Progressive Delamination Growth Characterization in Composite Materials

ICAME 2023

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of The Porosity Design and Deformation Behavior Analysis of Additively Manufactured Bone Scaffolds through Finite Element Modelling and Mechanical Property Investigations

Journal of Functional Biomaterials

Additively manufactured synthetic bone scaffolds have emerged as promising candidates for the rep... more Additively manufactured synthetic bone scaffolds have emerged as promising candidates for the replacement and regeneration of damaged and diseased bones. By employing optimal pore architecture, including pore morphology, sizes, and porosities, 3D-printed scaffolds can closely mimic the mechanical properties of natural bone and withstand external loads. This study aims to investigate the deformation pattern exhibited by polymeric bone scaffolds fabricated using the PolyJet (PJ) 3D printing technique. Cubic and hexagonal closed-packed uniform scaffolds with porosities of 30%, 50%, and 70% are utilized in finite element (FE) models. The crushable foam plasticity model is employed to analyze the scaffolds’ mechanical response under quasi-static compression. Experimental validation of the FE results demonstrates a favorable agreement, with an average percentage error of 12.27% ± 7.1%. Moreover, the yield strength and elastic modulus of the scaffolds are evaluated and compared, revealing ...

Research paper thumbnail of Numerical Investigation of Impact and Compression after Impact Performance of 45° Biaxial Composite Laminates

ICAME-22

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Biomechanical Modeling of Human–Robot Accident Scenarios: A Computational Assessment for Heavy-Payload-Capacity Robots

Applied Sciences

Exponentially growing technologies such as intelligent robots in the context of Industry 4.0 are ... more Exponentially growing technologies such as intelligent robots in the context of Industry 4.0 are radically changing traditional manufacturing to intelligent manufacturing with increased productivity and flexibility. Workspaces are being transformed into fully shared spaces for performing tasks during human–robot collaboration (HRC), increasing the possibility of accidents as compared to the fully restricted and partially shared workspaces. The next technological epoch of Industry 5.0 has a heavy focus on human well-being, with humans and robots operating in synergy. However, the reluctance to adopt heavy-payload-capacity robots due to safety concerns is a major hurdle. Therefore, the importance of analyzing the level of injury after impact can never be neglected for the safety of workers and for designing a collaborative environment. In this study, quasi-static and dynamic analyses of accidental scenarios during HRC are performed for medium- and low-payload-capacity robots according...

Research paper thumbnail of Computational Investigation of the Flow Structure through an Over-Expanded Nozzle

ICAME-22

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Identification of Elastic Properties of Orthotropic Composites Based on a Genetic Algorithm

An inverse approach combining numerical and experimental results with full-field displacement mea... more An inverse approach combining numerical and experimental results with full-field displacement measurements, will allow the identification of all the in-plane elastic properties from experimental tests. The off-axis tensile test was chosen, and in order to calibrate the numerical method a 8-harness satin weave glass fiber reinforced phenolic composite was selected. Instead the use of a non-destructive technique an alternative hybrid approach is proposed to obtain the field displacement. In this way a reference displacement field is generated by finite element method considering the loading and boundary conditions used in tensile tests and the mechanical properties obtained from experiments.

Research paper thumbnail of Additive Manufacturing of Bone Scaffolds Using PolyJet and Stereolithography Techniques

Applied Sciences, 2021

In this study, the printing capability of two different additive manufacturing (3D printing) tech... more In this study, the printing capability of two different additive manufacturing (3D printing) techniques, namely PolyJet and micro-stereolithography (µSLA), are investigated regarding the fabrication of bone scaffolds. The 3D-printed scaffold structures are used as supports in replacing and repairing fractured bone tissue. Printed bone scaffolds with complex structures produced using additive manufacturing technology can mimic the mechanical properties of natural human bone, providing lightweight structures with modifiable porosity levels. In this study, 3D scaffold structures are designed with different combinations of architectural parameters. The dimensional accuracy, permeability, and mechanical properties of complex 3D-printed scaffold structures are analyzed to compare the advantages and drawbacks associated with the two techniques. The fluid flow rates through the 3D-printed scaffold structures are measured and Darcy’s law is applied to calculate the experimentally measured pe...

Research paper thumbnail of A displacement field approach based on FEM-ANN and experiments for identification of elastic properties of composites

The International Journal of Advanced Manufacturing Technology

Research paper thumbnail of A First Step towards the Performance Enhancement of IC Engines Using a Desmodromic Valve System

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of A Thermal Analysis of Atmospheric Balloons Using Different Coating Materials

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Parametric Optimization of Gravitational Water Vortex Turbines for Enhanced Torque Generation

Research paper thumbnail of Investigation of Progressive Delamination Growth Characterization in Composite Materials

ICAME 2023

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of The Porosity Design and Deformation Behavior Analysis of Additively Manufactured Bone Scaffolds through Finite Element Modelling and Mechanical Property Investigations

Journal of Functional Biomaterials

Additively manufactured synthetic bone scaffolds have emerged as promising candidates for the rep... more Additively manufactured synthetic bone scaffolds have emerged as promising candidates for the replacement and regeneration of damaged and diseased bones. By employing optimal pore architecture, including pore morphology, sizes, and porosities, 3D-printed scaffolds can closely mimic the mechanical properties of natural bone and withstand external loads. This study aims to investigate the deformation pattern exhibited by polymeric bone scaffolds fabricated using the PolyJet (PJ) 3D printing technique. Cubic and hexagonal closed-packed uniform scaffolds with porosities of 30%, 50%, and 70% are utilized in finite element (FE) models. The crushable foam plasticity model is employed to analyze the scaffolds’ mechanical response under quasi-static compression. Experimental validation of the FE results demonstrates a favorable agreement, with an average percentage error of 12.27% ± 7.1%. Moreover, the yield strength and elastic modulus of the scaffolds are evaluated and compared, revealing ...

Research paper thumbnail of Numerical Investigation of Impact and Compression after Impact Performance of 45° Biaxial Composite Laminates

ICAME-22

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Biomechanical Modeling of Human–Robot Accident Scenarios: A Computational Assessment for Heavy-Payload-Capacity Robots

Applied Sciences

Exponentially growing technologies such as intelligent robots in the context of Industry 4.0 are ... more Exponentially growing technologies such as intelligent robots in the context of Industry 4.0 are radically changing traditional manufacturing to intelligent manufacturing with increased productivity and flexibility. Workspaces are being transformed into fully shared spaces for performing tasks during human–robot collaboration (HRC), increasing the possibility of accidents as compared to the fully restricted and partially shared workspaces. The next technological epoch of Industry 5.0 has a heavy focus on human well-being, with humans and robots operating in synergy. However, the reluctance to adopt heavy-payload-capacity robots due to safety concerns is a major hurdle. Therefore, the importance of analyzing the level of injury after impact can never be neglected for the safety of workers and for designing a collaborative environment. In this study, quasi-static and dynamic analyses of accidental scenarios during HRC are performed for medium- and low-payload-capacity robots according...

Research paper thumbnail of Computational Investigation of the Flow Structure through an Over-Expanded Nozzle

ICAME-22

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Identification of Elastic Properties of Orthotropic Composites Based on a Genetic Algorithm

An inverse approach combining numerical and experimental results with full-field displacement mea... more An inverse approach combining numerical and experimental results with full-field displacement measurements, will allow the identification of all the in-plane elastic properties from experimental tests. The off-axis tensile test was chosen, and in order to calibrate the numerical method a 8-harness satin weave glass fiber reinforced phenolic composite was selected. Instead the use of a non-destructive technique an alternative hybrid approach is proposed to obtain the field displacement. In this way a reference displacement field is generated by finite element method considering the loading and boundary conditions used in tensile tests and the mechanical properties obtained from experiments.

Research paper thumbnail of Additive Manufacturing of Bone Scaffolds Using PolyJet and Stereolithography Techniques

Applied Sciences, 2021

In this study, the printing capability of two different additive manufacturing (3D printing) tech... more In this study, the printing capability of two different additive manufacturing (3D printing) techniques, namely PolyJet and micro-stereolithography (µSLA), are investigated regarding the fabrication of bone scaffolds. The 3D-printed scaffold structures are used as supports in replacing and repairing fractured bone tissue. Printed bone scaffolds with complex structures produced using additive manufacturing technology can mimic the mechanical properties of natural human bone, providing lightweight structures with modifiable porosity levels. In this study, 3D scaffold structures are designed with different combinations of architectural parameters. The dimensional accuracy, permeability, and mechanical properties of complex 3D-printed scaffold structures are analyzed to compare the advantages and drawbacks associated with the two techniques. The fluid flow rates through the 3D-printed scaffold structures are measured and Darcy’s law is applied to calculate the experimentally measured pe...

Research paper thumbnail of A displacement field approach based on FEM-ANN and experiments for identification of elastic properties of composites

The International Journal of Advanced Manufacturing Technology