Browsing by Author "Ghasemnejad, Hessam"

Advancement in design and failure analysis of aluminium foam-filled honeycomb crash absorbers

Valente, Goncalo; Ghasemnejad, Hessam; Srimanosaowapak, S.; Watson, James W. (Springer, 2023-03-01)

Honeycomb structures are frequently used as energy absorption devices in the automotive and aerospace industry. Many studies have been conducted to optimise these structures and improve crashworthiness behaviour. This paper ...

Aluminium foam-filled honeycomb crash absorbers

Valente, Goncalo; Ghasemnejad, Hessam; Srimanosaowapa, Sompong (Trans Tech Publications, 2023-04-06)

Honeycomb structures are frequently used as energy absorption devices in the automotive and aerospace industry. Many studies have been conducted to optimise these structures and improve crashworthiness behaviour. This paper ...

Analysis of the effect of impact damage on the repairability of CFRP composite laminates.

Alzeanidi, Nasser (2017-02)

Polymer composite materials are common in the aerospace application such as aircraft structures including primary and secondary structures. Therefore, there has been an increasing demand for composites in both the military ...

Analytical development on impact behaviour of composite sandwich laminates by differentiated loading regimes

Chao Correas, A.; Ghasemnejad, Hessam (Elsevier, 2022-06-02)

Given the widespread usage of composite components in critical structures within the aerospace and automotive industries, it is deemed as an essential task to determine the effect of normal operation phenomena on its ...

Analytical solutions to predict impact behaviour of stringer stiffened composite aircraft panels

Chao Correas, A.; Casares Crespo, A.; Ghasemnejad, Hessam; Roshan, G. (Springer, 2021-05-25)

This paper aims to develop an analytical method to predict the low-velocity impact response of simply supported stringer stiffened panels. Since the combination of stringer and panel provides aircraft structure with variable ...

Crashworthiness of foam-filled and reinforced honeycomb crash absorbers in transverse direction

Nicoud, G.; Ghasemnejad, Hessam; Srimanosaowapak, S.; Watson, J. W. (Springer, 2023-11-29)

Honeycomb crash absorbers have been widely studied as energy absorption devices for use in automotive industries. However, none of these investigations have studied the side impact of empty and foam-filled honeycomb absorbers ...

Developed trigger mechanisms to improve crush force efficiency of aluminium tubes

Rai, V.; Ghasemnejad, Hessam; Watson, James W.; Gonzalez-Domingo, J. A.; Webb, Phil (Elsevier, 2019-09-11)

This paper aims to investigate the effect of a trigger mechanism on the crush force efficiency of aluminium tubular absorbers. Various trigger mechanisms such as cut-out holes, circumferential notch and end-fillet, were ...

Effect of bird-strike on sandwich composite aircraft wing leading edge

Arachchige, B.; Ghasemnejad, Hessam; Yasaee, Mehdi (Elsevier, 2020-06-15)

In this paper, a parametric numerical study is performed on the sandwich composite leading edge to analyse the effect of skin thickness, layups, impact velocities to compare the performance of the two different reinforcements ...

Effect of variable core stiffness on the impact response of curved sandwich plates

Arachchige, B.; Ghasemnejad, Hessam (Elsevier, 2018-06-02)

An extensive analytical model to determine behaviour of curved sandwich plates with variable stiffness cores and face-sheets under low velocity impact with foam core is presented in this paper. A developed method is ...

Experimental and numerical investigation of multi-layered honeycomb sandwich composites for impact mechanics applications

Al Ali, A.; Arhore, Edore G.; Ghasemnejad, Hessam; Yasaee, Mehdi (Elsevier, 2024-02-01)

This project aims to investigate the design of a multi-layered sandwich composite and its performance under impact loading conditions. An experimental and numerical assessment was performed to conclude the effect of ...

Finite element modelling approach for progressive crushing of composite tubular absorbers in LS-DYNA: review and findings

Rabiee, Ali; Ghasemnejad, Hessam (MDPI, 2021-12-29)

Robust finite element models are utilised for their ability to predict simple to complex mechanical behaviour under certain conditions at a very low cost compared to experimental studies, as this reduces the need for ...

Identification of the key design inputs for the FEM-based preliminary sizing and mass estimation of a civil aircraft wing box structure

You, Chao; Yasaee, Mehdi; He, Shun; Yang, Daqing; Xu, Yigeng; Dayyani, Iman; Ghasemnejad, Hessam; Guo, Shijun; Webb, Phil; Jennings, James; Federico, Giovanni (Elsevier, 2021-12-14)

FEM-based preliminary structural sizing has been successfully carried out for a typical single-aisle wing box structure using MSC Nastran, by considering various load cases representing typical aircraft manoeuvres, engine ...

Improvement of force history pattern in composite tubular structures by developed trigger mechanisms

de la Cuesta, J. J.; Ghasemnejad, Hessam (Springer, 2022-06-14)

This paper investigates the effect of various trigger mechanisms on the force history pattern, initial collapse load, mean force and specific energy absorption of CFRP composite tubular absorbers. These trigger mechanisms ...

Improvement of specific energy absorption of composite tubular absorbers using various stitching pattern designs

Rabiee, Ali; Ghasemnejad, Hessam (Springer, 2020-11-26)

In this paper, various patterns of multi-stitched locations were studied experimentally and numerically to improve the specific energy absorption (SEA) in composite tubular absorbers. In this regard, stitching patterns ...

Investigation of energy absorption of a GFRP composite crash box

Ghasemnejad, Hessam; Hadavinia, H; Aboutorabi, A (WIT Press, 2008)

Interlaminar fracture toughness of composite materials plays an important role on the specific energy absorption (SEA) of the crushing of composite materials. In this regard an optimum composite crash box design is sought ...

Laminate tailoring of composite tubular structures to improve crashworthiness design at off-axis loading

Rabiee, Ali; Ghasemnejad, Hessam (Scientific Research Publishing, 2018-07-10)

This paper presents experimental and numerical investigation on the parameters effecting energy absorption capability of composite tubular structures at oblique loading to improve crashworthiness performance. Various ...

Lightweight design of multi-stitched composite crash absorbers to improve specific energy absorption capability under quasi-static and impact loading

Rabiee, Ali (2018-05)

A comprehensive numerical and experimental study was performed to investigate the energy absorbing capabilities of glass/epoxy and carbon/epoxy members that could serve as stanchions in the subfloor structure of aircraft ...

Lightweight design to improve crushing behaviour of multi-stitched composite tubular structures under impact loading

Rabiee, Ali; Ghasemnejad, Hessam (Elsevier, 2018-11-19)

This paper presents experimental and numerical studies on the effect of multi-stitching pattern on the energy absorption capability of composite tubular structures under impact loading. A new multi-stitching pattern was ...

Manufacturable insight into modelling and design considerations in fibre-steered composite laminates: state of the art and perspective

Aragh, B. Sobhani; Farahani, E. Borzabadi; Xu, B. X.; Ghasemnejad, Hessam; Mansur, W. J. (Elsevier, 2021-03-18)

The advent of novel robot-assisted composite manufacturing techniques has enabled steering of fibre paths in the plane of the lamina, leading to the emergence of the socalled variable angle tow (VAT) composite laminates. ...

Manufacturing of 3D printed laminated carbon fibre reinforced nylon composites: impact mechanics

Delporte, Yohan; Ghasemnejad, Hessam (Scientific Research Publishing, 2020-12-03)

This paper presents the manufacturing development of laminated Carbon Fibre Reinforced Thermoplastics Polymer (CFRTP) specimens, which show significant improvement of mechanical properties in comparison with existing ...

Browsing by Author "Ghasemnejad, Hessam"

Browsing by Author "Ghasemnejad, Hessam"

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