ENHANCEMENT OF OVEN-VACUUM BAGGING PROCESS FOR MANUFACTURING SANDWICH PANELS

Vacuum Bagging Oven (VBO) process is widely used in the aerospace and construction industries. Manufacturing induced defects on the panels during manufacturing could decrease the mechanical properties and reduce their aesthetic values. Therefore, the objective of this study is to investigate the eff...

Full description

Main Author: Mohd Rizal, Fatin Nur Jeehan Rizal
Format: Final Year Project
Language: English
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-utpedia.20106 /
Published: IRC 2018
Online Access: http://utpedia.utp.edu.my/20106/1/Dissertation_21147_Fatin%20Nur%20Jeehan%20Rizal_ME_Sep18.pdf
http://utpedia.utp.edu.my/20106/
Tags: Add Tag
No Tags, Be the first to tag this record!
id utp-utpedia.20106
recordtype eprints
spelling utp-utpedia.201062019-12-20T16:14:30Z http://utpedia.utp.edu.my/20106/ ENHANCEMENT OF OVEN-VACUUM BAGGING PROCESS FOR MANUFACTURING SANDWICH PANELS Mohd Rizal, Fatin Nur Jeehan Rizal Vacuum Bagging Oven (VBO) process is widely used in the aerospace and construction industries. Manufacturing induced defects on the panels during manufacturing could decrease the mechanical properties and reduce their aesthetic values. Therefore, the objective of this study is to investigate the effect of pressure and vacuum bagging method on external surface porosity and internal voids for the sandwich panel using VBO while supported with MATLAB, profilometer, 3-D scanner and compaction test. Hence, various researches were carried out to identify the best parameter values to get fewer void content. Factors affecting the defects of the specimen are pressure and temperature but, in this paper, the pressure will be highlighted, and temperature will only be used as constant for all specimens. The materials that are used for producing sandwich panels are carbon-epoxy prepreg for the skin and Nomex honeycomb for the core. The out-life prepreg time must be 4 hours minimum at room temperature. It is necessary to do pre-curing after taking the prepreg out of the freezer to prepare it in room temperature for a more ideal outcome. The temperature has two stages based on manufacturer’s recommendation cure cycle (MRCC) which are pre-curing and curing where each has its own reasoning to make fewer defects with suitable temperature. There are three different pressure values, 30 kPa, 60 kPa and 90 kPa of pressure factors. Pressure was constant throughout the vacuum hold time for SVB while DVB has an additional 100 kPa for the outer layer bag. Other than that, MATLAB software gives image analysis of the components’ microstructure, resulting in data that will quantify the evolution of impregnation and porosity due to resin flow from pressure. Finally, compaction test will be held onto the specimen until breaking point to analyse the mechanical properties it could withstand. IRC 2018-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/20106/1/Dissertation_21147_Fatin%20Nur%20Jeehan%20Rizal_ME_Sep18.pdf Mohd Rizal, Fatin Nur Jeehan Rizal (2018) ENHANCEMENT OF OVEN-VACUUM BAGGING PROCESS FOR MANUFACTURING SANDWICH PANELS. IRC, Universiti Teknologi PETRONAS. (Submitted)
institution Universiti Teknologi Petronas
collection UTPedia
language English
description Vacuum Bagging Oven (VBO) process is widely used in the aerospace and construction industries. Manufacturing induced defects on the panels during manufacturing could decrease the mechanical properties and reduce their aesthetic values. Therefore, the objective of this study is to investigate the effect of pressure and vacuum bagging method on external surface porosity and internal voids for the sandwich panel using VBO while supported with MATLAB, profilometer, 3-D scanner and compaction test. Hence, various researches were carried out to identify the best parameter values to get fewer void content. Factors affecting the defects of the specimen are pressure and temperature but, in this paper, the pressure will be highlighted, and temperature will only be used as constant for all specimens. The materials that are used for producing sandwich panels are carbon-epoxy prepreg for the skin and Nomex honeycomb for the core. The out-life prepreg time must be 4 hours minimum at room temperature. It is necessary to do pre-curing after taking the prepreg out of the freezer to prepare it in room temperature for a more ideal outcome. The temperature has two stages based on manufacturer’s recommendation cure cycle (MRCC) which are pre-curing and curing where each has its own reasoning to make fewer defects with suitable temperature. There are three different pressure values, 30 kPa, 60 kPa and 90 kPa of pressure factors. Pressure was constant throughout the vacuum hold time for SVB while DVB has an additional 100 kPa for the outer layer bag. Other than that, MATLAB software gives image analysis of the components’ microstructure, resulting in data that will quantify the evolution of impregnation and porosity due to resin flow from pressure. Finally, compaction test will be held onto the specimen until breaking point to analyse the mechanical properties it could withstand.
format Final Year Project
author Mohd Rizal, Fatin Nur Jeehan Rizal
spellingShingle Mohd Rizal, Fatin Nur Jeehan Rizal
ENHANCEMENT OF OVEN-VACUUM BAGGING PROCESS FOR MANUFACTURING SANDWICH PANELS
author_sort Mohd Rizal, Fatin Nur Jeehan Rizal
title ENHANCEMENT OF OVEN-VACUUM BAGGING PROCESS FOR MANUFACTURING SANDWICH PANELS
title_short ENHANCEMENT OF OVEN-VACUUM BAGGING PROCESS FOR MANUFACTURING SANDWICH PANELS
title_full ENHANCEMENT OF OVEN-VACUUM BAGGING PROCESS FOR MANUFACTURING SANDWICH PANELS
title_fullStr ENHANCEMENT OF OVEN-VACUUM BAGGING PROCESS FOR MANUFACTURING SANDWICH PANELS
title_full_unstemmed ENHANCEMENT OF OVEN-VACUUM BAGGING PROCESS FOR MANUFACTURING SANDWICH PANELS
title_sort enhancement of oven-vacuum bagging process for manufacturing sandwich panels
publisher IRC
publishDate 2018
url http://utpedia.utp.edu.my/20106/1/Dissertation_21147_Fatin%20Nur%20Jeehan%20Rizal_ME_Sep18.pdf
http://utpedia.utp.edu.my/20106/
_version_ 1741195578738475008
score 11.62408

Similar Items