Mechanical behaviour of pin-reinforced foam core sandwich panels subjected to low impact loading
As a light structure, composite sandwich panels are distinguished by their significant bending stiffness that is rapidly used in the manufacture of aircraft bodies. This study focuses on the mechanical behaviour of through-thickness polymer, pin-reinforced foam core sandwich panels subjected to inde...
Saved in:
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI
2021
|
Subjects: | |
Online Access: | http://eprints.utm.my/id/eprint/97565/1/MohdYazidYahya2021_MechanicalBehaviourofPinReinforcedFoam.pdf http://eprints.utm.my/id/eprint/97565/ http://dx.doi.org/10.3390/polym13213627 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my.utm.97565 |
---|---|
record_format |
eprints |
spelling |
my.utm.975652022-10-18T02:21:26Z http://eprints.utm.my/id/eprint/97565/ Mechanical behaviour of pin-reinforced foam core sandwich panels subjected to low impact loading Nejad, Ali Farokhi Koloor, Seyed Saeid Rahimian Syed Hamzah, Syed Mohd. Saiful Azwan Yahya, Mohd. Yazid TJ Mechanical engineering and machinery As a light structure, composite sandwich panels are distinguished by their significant bending stiffness that is rapidly used in the manufacture of aircraft bodies. This study focuses on the mechanical behaviour of through-thickness polymer, pin-reinforced foam core sandwich panels subjected to indentation and low impact loading. Experimental and computational approaches are used to study the global and internal behaviour of the sandwich panel. The samples for experimental testing were made from glass/polyester laminates as the face sheets and polyurethane foam as the foam core. To further reinforce the samples against bending, different sizes of polymeric pins were implemented on the sandwich panels. The sandwich panel was fabricated using the vacuum infusion process. Using the experimental data, a finite element model of the sample was generated in LS-DYNA software, and the effect of pin size and loading rate were examined. Results of the simulation were validated through a proper prediction compared to the test data. The results of the study show that using polymeric pins, the flexural strength of the panel significantly increased under impact loading. In addition, the impact resistance of the pin-reinforced foam core panel increased up to 20%. Moreover, the size of pins has a significant influence on the flexural behaviour while the sample was under a moderate strain rate. To design an optimum pin-reinforced sandwich panel a “design of experiment model” was generated to predict energy absorption and the maximum peak load of proposed sandwich panels. The best design of the panel is recommended with 1.8 mm face sheet thickness and 5 mm pins diameter. MDPI 2021 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/97565/1/MohdYazidYahya2021_MechanicalBehaviourofPinReinforcedFoam.pdf Nejad, Ali Farokhi and Koloor, Seyed Saeid Rahimian and Syed Hamzah, Syed Mohd. Saiful Azwan and Yahya, Mohd. Yazid (2021) Mechanical behaviour of pin-reinforced foam core sandwich panels subjected to low impact loading. Polymers, 13 (21). pp. 1-17. ISSN 2073-4360 http://dx.doi.org/10.3390/polym13213627 DOI : 10.3390/polym13213627 |
institution |
Universiti Teknologi Malaysia |
building |
UTM Library |
collection |
Institutional Repository |
continent |
Asia |
country |
Malaysia |
content_provider |
Universiti Teknologi Malaysia |
content_source |
UTM Institutional Repository |
url_provider |
http://eprints.utm.my/ |
language |
English |
topic |
TJ Mechanical engineering and machinery |
spellingShingle |
TJ Mechanical engineering and machinery Nejad, Ali Farokhi Koloor, Seyed Saeid Rahimian Syed Hamzah, Syed Mohd. Saiful Azwan Yahya, Mohd. Yazid Mechanical behaviour of pin-reinforced foam core sandwich panels subjected to low impact loading |
description |
As a light structure, composite sandwich panels are distinguished by their significant bending stiffness that is rapidly used in the manufacture of aircraft bodies. This study focuses on the mechanical behaviour of through-thickness polymer, pin-reinforced foam core sandwich panels subjected to indentation and low impact loading. Experimental and computational approaches are used to study the global and internal behaviour of the sandwich panel. The samples for experimental testing were made from glass/polyester laminates as the face sheets and polyurethane foam as the foam core. To further reinforce the samples against bending, different sizes of polymeric pins were implemented on the sandwich panels. The sandwich panel was fabricated using the vacuum infusion process. Using the experimental data, a finite element model of the sample was generated in LS-DYNA software, and the effect of pin size and loading rate were examined. Results of the simulation were validated through a proper prediction compared to the test data. The results of the study show that using polymeric pins, the flexural strength of the panel significantly increased under impact loading. In addition, the impact resistance of the pin-reinforced foam core panel increased up to 20%. Moreover, the size of pins has a significant influence on the flexural behaviour while the sample was under a moderate strain rate. To design an optimum pin-reinforced sandwich panel a “design of experiment model” was generated to predict energy absorption and the maximum peak load of proposed sandwich panels. The best design of the panel is recommended with 1.8 mm face sheet thickness and 5 mm pins diameter. |
format |
Article |
author |
Nejad, Ali Farokhi Koloor, Seyed Saeid Rahimian Syed Hamzah, Syed Mohd. Saiful Azwan Yahya, Mohd. Yazid |
author_facet |
Nejad, Ali Farokhi Koloor, Seyed Saeid Rahimian Syed Hamzah, Syed Mohd. Saiful Azwan Yahya, Mohd. Yazid |
author_sort |
Nejad, Ali Farokhi |
title |
Mechanical behaviour of pin-reinforced foam core sandwich panels subjected to low impact loading |
title_short |
Mechanical behaviour of pin-reinforced foam core sandwich panels subjected to low impact loading |
title_full |
Mechanical behaviour of pin-reinforced foam core sandwich panels subjected to low impact loading |
title_fullStr |
Mechanical behaviour of pin-reinforced foam core sandwich panels subjected to low impact loading |
title_full_unstemmed |
Mechanical behaviour of pin-reinforced foam core sandwich panels subjected to low impact loading |
title_sort |
mechanical behaviour of pin-reinforced foam core sandwich panels subjected to low impact loading |
publisher |
MDPI |
publishDate |
2021 |
url |
http://eprints.utm.my/id/eprint/97565/1/MohdYazidYahya2021_MechanicalBehaviourofPinReinforcedFoam.pdf http://eprints.utm.my/id/eprint/97565/ http://dx.doi.org/10.3390/polym13213627 |
_version_ |
1748180477422862336 |
score |
13.160551 |