Journal ArticleDOI
Microscopic analysis of failure in woven carbon fabric laminates coupled with digital image correlation and acoustic emission
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TLDR
In this article, a failure analysis of woven fabric carbon-reinforced polymeric composites under tensile and flexural loading was performed. And the authors used the GAP function to find the optimal number of clusters for acoustic emission data, which is suitable for classifying elongated data points in the vector space of acoustic data.About:
This article is published in Composite Structures.The article was published on 2019-12-15. It has received 42 citations till now. The article focuses on the topics: Composite laminates & Flexural strength.read more
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Damage characterization of laminated composites using acoustic emission: A review
TL;DR: A comprehensive review on the use of acoustic emission (AE) for damage characterization in laminated composites is presented in this paper, where the authors discuss the literature for damage diagnostics and damage type identification and damage localization.
Journal ArticleDOI
Damage assessment of NCF, 2D and 3D Woven Composites under Compression After Multiple-Impact using Acoustic Emission
Milad Saeedifar,Mohamed Nasr Saleh,Hassan M. El-Dessouky,Hassan M. El-Dessouky,Sofia Teixeira de Freitas,Dimitrios Zarouchas +5 more
TL;DR: In this paper, the damage characterization of non-crimp fabrics, 2D plain-woven (2D-PW) and 3D Orthogonal Plain-Woven (ORT-Pw) carbon/epoxy laminates, subjected to compression after multiple-impact loading, using Acoustic Emission (AE), was studied.
Journal ArticleDOI
An experimental implementation of inverse finite element method for real-time shape and strain sensing of composite and sandwich structures
TL;DR: In this paper, the inverse finite element method (iFEM) is applied to real-time displacement reconstruction of a moderately thick wing-shaped sandwich structure via a network of strain sensors.
Journal ArticleDOI
Investigation on interlaminar delamination tendency of multidirectional carbon fiber composites
TL;DR: In this paper, multiple strain measurement techniques, namely, resistive strain gauges, embedded optical sensors and digital image correlation are used to analyze stress-strain behavior simultaneously through the thickness of composite materials, and to determine the sequence of failure in different plies.
Journal ArticleDOI
Damage mechanisms in CFRP/HNT laminates under flexural and in-plane shear loadings using experimental and numerical methods
Baidaa Alkhateab,Isa Emami Tabrizi,Jamal Seyyed Monfared Zanjani,Mohammad Naqib Rahimi,Leila Haghighi Poudeh,Adnan Kefal,Mehmet Yildiz +6 more
TL;DR: In this paper, the role of nanotubes on the physics behind the deformation mechanisms and damage development in fiber reinforced polymer composites by using acoustic emission, digital image correlation, infrared thermography, fractography, and non-local meshless-numerical analysis, namely, Peridynamics.
References
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Journal ArticleDOI
Estimating the number of clusters in a data set via the gap statistic
TL;DR: In this paper, the authors proposed a method called the "gap statistic" for estimating the number of clusters (groups) in a set of data, which uses the output of any clustering algorithm (e.g. K-means or hierarchical), comparing the change in within-cluster dispersion with that expected under an appropriate reference null distribution.
Book
Estimating the number of clusters in a dataset via the gap statistic
TL;DR: The gap statistic is proposed for estimating the number of clusters (groups) in a set of data by comparing the change in within‐cluster dispersion with that expected under an appropriate reference null distribution.
Book
Image Correlation for Shape, Motion and Deformation Measurements: Basic Concepts,Theory and Applications
TL;DR: In this paper, a comprehensive overview of image correlation for shape, motion and deformation measurements is provided. But, the authors do not discuss the effect of out-of-plane motion on 2D measurements.
Journal ArticleDOI
On acoustic emission for failure investigation in CFRP: Pattern recognition and peak frequency analyses
TL;DR: In this article, the authors investigated failure in Carbon Fibre Reinforced Plastics CFRP using Acoustic Emission (AE) signals collected and post-processed for various test configurations: tension, Compact Tension (CT), Compact Compression (CC), Double Cantilever Beam (DCB), and four-point bend End Notched Flexure (4-ENF).
BookDOI
Failure Analysis and Fractography of Polymer Composites
TL;DR: Fractography in failure analysis has been extensively studied in the last decade as mentioned in this paper, with the most recent advances in the deformation and fracture behavior of polymer material. But, it has not yet been applied in the field of failure detection.