A Structural Health Monitoring (SHM) of composite patch repair for aircraft part and structures using principal component analysis

The use of advanced composite structures on aircraft is increasing. New aircraft, such as the Airbus A350 and the Boeing B787, have more than 50% of their structure originating from composite materials especially carbon fiber reinforced plastic (CFRP). Delamination, disbonding, voids and barely visi...

Full description

Saved in:

Bibliographic Details
Main Author:	Mohd Aris, Khairul Dahri
Format:	Thesis
Language:	English
Published:	2015
Subjects:	Structural health monitoring - Automation Airplanes - Parts
Online Access:	http://psasir.upm.edu.my/id/eprint/65496/1/FK%202015%20149IR.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-upm-ir.65496
record_format	uketd_dc
spelling	my-upm-ir.654962018-09-20T07:22:42Z A Structural Health Monitoring (SHM) of composite patch repair for aircraft part and structures using principal component analysis 2015-03 Mohd Aris, Khairul Dahri The use of advanced composite structures on aircraft is increasing. New aircraft, such as the Airbus A350 and the Boeing B787, have more than 50% of their structure originating from composite materials especially carbon fiber reinforced plastic (CFRP). Delamination, disbonding, voids and barely visible internal damage (BVID) are some of the damages uniquely found in the composite structure. Once the repair is carried out, the structural health monitoring (SHM) has the ability to detect structural anomalies where human dependency can be minimized. However, most SHM works are concentrating on pristine structure on repaired structure. Therefore the behaviour of SHM at undamaged, damaged and repaired conditions on carbon fiber reinforced plastic (CFRP) are being investigated in this research.. The motivation of the research is to optimize the structural health monitoring (SHM) in comparing the structural response undamaged, damaged and repaired of CFRP structures by using Principal Component Analysis (PCA) through Amplitude Based Assessment (ABA) and Conditional Structural Index (CSI). The objectives of the research are to undertake a feasibility study on Lamb wave propagation over undamaged, damaged and repaired composite panels via smart PZT sensor by using PCA to evaluate the structural conditions of CFRP panels. PZT sensors are used to interrogate and retrieve the surface wave across the investigated structures via online and offline on the undamaged damaged and repaired structures of similar origin. Result shows that although the structural integrity has returned back to its pristine condition, the repaired structure response is diverging from the undamaged conditions. The novelty in this research is the comparative results between undamaged, damaged and repaired response of an aircraft structures originated from CFRP panels which will assist in interpreting the structural health status at maintenance level. Structural health monitoring - Automation Airplanes - Parts 2015-03 Thesis http://psasir.upm.edu.my/id/eprint/65496/ http://psasir.upm.edu.my/id/eprint/65496/1/FK%202015%20149IR.pdf text en public doctoral Universiti Putra Malaysia Structural health monitoring - Automation Airplanes - Parts
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Structural health monitoring - Automation Airplanes - Parts
spellingShingle	Structural health monitoring - Automation Airplanes - Parts Mohd Aris, Khairul Dahri A Structural Health Monitoring (SHM) of composite patch repair for aircraft part and structures using principal component analysis
description	The use of advanced composite structures on aircraft is increasing. New aircraft, such as the Airbus A350 and the Boeing B787, have more than 50% of their structure originating from composite materials especially carbon fiber reinforced plastic (CFRP). Delamination, disbonding, voids and barely visible internal damage (BVID) are some of the damages uniquely found in the composite structure. Once the repair is carried out, the structural health monitoring (SHM) has the ability to detect structural anomalies where human dependency can be minimized. However, most SHM works are concentrating on pristine structure on repaired structure. Therefore the behaviour of SHM at undamaged, damaged and repaired conditions on carbon fiber reinforced plastic (CFRP) are being investigated in this research.. The motivation of the research is to optimize the structural health monitoring (SHM) in comparing the structural response undamaged, damaged and repaired of CFRP structures by using Principal Component Analysis (PCA) through Amplitude Based Assessment (ABA) and Conditional Structural Index (CSI). The objectives of the research are to undertake a feasibility study on Lamb wave propagation over undamaged, damaged and repaired composite panels via smart PZT sensor by using PCA to evaluate the structural conditions of CFRP panels. PZT sensors are used to interrogate and retrieve the surface wave across the investigated structures via online and offline on the undamaged damaged and repaired structures of similar origin. Result shows that although the structural integrity has returned back to its pristine condition, the repaired structure response is diverging from the undamaged conditions. The novelty in this research is the comparative results between undamaged, damaged and repaired response of an aircraft structures originated from CFRP panels which will assist in interpreting the structural health status at maintenance level.
format	Thesis
qualification_level	Doctorate
author	Mohd Aris, Khairul Dahri
author_facet	Mohd Aris, Khairul Dahri
author_sort	Mohd Aris, Khairul Dahri
title	A Structural Health Monitoring (SHM) of composite patch repair for aircraft part and structures using principal component analysis
title_short	A Structural Health Monitoring (SHM) of composite patch repair for aircraft part and structures using principal component analysis
title_full	A Structural Health Monitoring (SHM) of composite patch repair for aircraft part and structures using principal component analysis
title_fullStr	A Structural Health Monitoring (SHM) of composite patch repair for aircraft part and structures using principal component analysis
title_full_unstemmed	A Structural Health Monitoring (SHM) of composite patch repair for aircraft part and structures using principal component analysis
title_sort	structural health monitoring (shm) of composite patch repair for aircraft part and structures using principal component analysis
granting_institution	Universiti Putra Malaysia
publishDate	2015
url	http://psasir.upm.edu.my/id/eprint/65496/1/FK%202015%20149IR.pdf
_version_	1747812344214323200

A Structural Health Monitoring (SHM) of composite patch repair for aircraft part and structures using principal component analysis

Similar Items