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Applied Mechanics
Special Issues
Damage Sensing in Composites for Structural Health Monitoring
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Damage Sensing in Composites for Structural Health Monitoring

A special issue of Applied Mechanics (ISSN 2673-3161).

Deadline for manuscript submissions: closed (20 October 2021) | Viewed by 11908

Special Issue Editor

Prof. Dr. Vijaya B. Chalivendra

E-Mail Website
Guest Editor
Department of Mechanical Engineering, University of Massachusetts Dartmouth, Dartmouth, MA 02747, USA
Interests: damage sensing; multi-functional composites; high strain rate characterization; dynamic fracture mechanics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

In recent years, structural health monitoring (SHM) has been more integrated into the composites’ industry with their increasing use in wide range of applications. Several health monitoring concepts such as novel non-destructive testing (NDT) technologies, embedded sensors, and self-sensing material systems, etc., have been lately explored in composites. The aim of this Special Issue on “Damage Sensing in Composites for Structural Health Monitoring” is to showcase the most recent and relevant advances in the damage sensing field, oriented to the following topics (but not limited to them):

  • self-sensing composite materials using carbon-based or metallic nano inclusions
  • embedded sensors (fiber optics, smart piezoelectric films or coatings)
  • non-destructive testing techniques (ultrasonic, thermography, x-ray, laser stereography, acoustic emission, and computed tomography)
  • vibration-based damage sensing methodologies

Prof. Dr. Vijaya B. Chalivendra
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Mechanics is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • self-sensing
  • embedded sensors
  • non-destructive techniques
  • vibrations

Published Papers (4 papers)

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Research

16 pages, 6260 KiB  
Article
Response-Only Damage Detection Approach of CFRP Gas Tanks Using Clustering and Vibrational Measurements
by Ilias Zacharakis and Dimitrios Giagopoulos
Appl. Mech. 2021, 2(4), 1057-1072; https://0-doi-org.brum.beds.ac.uk/10.3390/applmech2040061 - 11 Dec 2021
Cited by 5 | Viewed by 2171
Abstract
The advancements in the automotive, aviation, and aerospace industry have led to an increased usage of CFRP high-pressure gas tanks. In order to avoid any fatal accidents, the inspection procedures require accuracy, but also practicality, to be used in the industry. The presented [...] Read more.
The advancements in the automotive, aviation, and aerospace industry have led to an increased usage of CFRP high-pressure gas tanks. In order to avoid any fatal accidents, the inspection procedures require accuracy, but also practicality, to be used in the industry. The presented work focuses on response-only metrics from vibrational experimental measurements of the CFRP tank. The power spectral density and transmittance function curves are both compared for the accuracy and ability to be used as metrics for damage detection. Along with the selection of the proper metric, an appropriate clustering algorithm that can accurately group similar states of the structure is of high importance. Two clustering algorithms, agglomerative hierarchical and spectral clustering, are employed and compared for their performance. A small Type V CFRP tank is used as an experimental structure on this benchmark problem. In order to create realistic material damage, the tank is placed on an impact system multiple times where different damage magnitudes are created. After each new state and damage magnitude on the tank, vibrational experimental data are collected. Using the collected data, all the combinations of the mentioned metrics and algorithms are executed and properly compared to evaluate their accuracy. Full article
(This article belongs to the Special Issue Damage Sensing in Composites for Structural Health Monitoring)
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13 pages, 1177 KiB  
Article
Determination of Detection Probability and Localization Accuracy for a Guided Wave-Based Structural Health Monitoring System on a Composite Structure
by Ahmed Bayoumi, Tobias Minten and Inka Mueller
Appl. Mech. 2021, 2(4), 996-1008; https://0-doi-org.brum.beds.ac.uk/10.3390/applmech2040058 - 02 Dec 2021
Cited by 5 | Viewed by 2524
Abstract
The capabilities of detection and localization of damage in a structure, using a guided wave-based structural health monitoring (GWSHM) system, depend on the damage location and the chosen sensor array setup. This paper presents a novel approach to assess the reliability of an [...] Read more.
The capabilities of detection and localization of damage in a structure, using a guided wave-based structural health monitoring (GWSHM) system, depend on the damage location and the chosen sensor array setup. This paper presents a novel approach to assess the reliability of an SHM system enabling to quantify localization accuracy. A two-step technique is developed to combine multiple paths to generate one probability of detection (POD) curve that provides information regarding the detection capability of an SHM system at a defined damage position. Moreover, a new method is presented to analyze localization accuracy. Established probability-based diagnostic imaging using a signal correlation algorithm is used to determine the damage location. The resultant output of the localization accuracy analysis is the smallest damage size at which a defined accuracy level can be reached at a determined location. The proposed methods for determination of detection probability and localization accuracy are applied to a plate-like CFRP structure with an omega stringer with artificial damage of different sizes at different locations. The results show that the location of the damage influences the sensitivity of detection and localization accuracy for the used detection and localization methods. Localization accuracy is enhanced as it becomes closer to the array’s center, but its detection sensitivity deteriorates. Full article
(This article belongs to the Special Issue Damage Sensing in Composites for Structural Health Monitoring)
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13 pages, 7118 KiB  
Article
Free Vibration Analysis of Rotating Beams Based on the Modified Couple Stress Theory and Coupled Displacement Field
by Alireza Babaei and Masoud Arabghahestani
Appl. Mech. 2021, 2(2), 226-238; https://0-doi-org.brum.beds.ac.uk/10.3390/applmech2020014 - 16 Apr 2021
Cited by 9 | Viewed by 3126
Abstract
In this paper, transverse vibration analysis of rotating micro-beam is investigated based on the modified couple stress theory. The simply-supported micro-beam is modeled utilizing Euler-Bernoulli and Timoshenko beam theories. The system is rotating around a fixed axis perpendicular to the axial direction of [...] Read more.
In this paper, transverse vibration analysis of rotating micro-beam is investigated based on the modified couple stress theory. The simply-supported micro-beam is modeled utilizing Euler-Bernoulli and Timoshenko beam theories. The system is rotating around a fixed axis perpendicular to the axial direction of the beam. For the first time, displacement filed is introduced as a coupled field to the translational field. In other words, the mentioned rotational displacement field is expressed as a proportional function of translational displacement field using first (axial), second (lateral), and third (angular or rotational) velocity factors. Utilizing Hamilton’s approach as a variational method, dynamic-vibration equations of motion of the proposed model are derived. Galerkin’s method is adopted to solve the equation corresponding to the Euler–Bernoulli and Timoshenko beams. For the case considering shear deformation effects, Navier method is chosen. For evaluation of current results and models, they are compared with those available at the benchmark. In this paper; effects of slenderness ratio, axial, lateral, and angular velocity factors, and rotations of the beam on the frequency are reported. Based on the results presented, mentioned factors should be counted in the analysis and design of such rotating micro-systems. Full article
(This article belongs to the Special Issue Damage Sensing in Composites for Structural Health Monitoring)
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17 pages, 42445 KiB  
Article
Prediction of Tensile Strain Capacity for X52 Steel Pipeline Materials Using the Extended Finite Element Method
by Nahid Elyasi, Mohammadmehdi Shahzamanian, Meng Lin, Lindsey Westover, Yong Li, Muntaseer Kainat, Nader Yoosef-Ghodsi and Samer Adeeb
Appl. Mech. 2021, 2(2), 209-225; https://0-doi-org.brum.beds.ac.uk/10.3390/applmech2020013 - 15 Apr 2021
Cited by 6 | Viewed by 2836
Abstract
Strain-based design (SBD) plays an important role in pipeline design and assessment of pipelines subjected to geo-hazards. Under such hazards, a pipe can be subjected to substantial plastic strains, leading to tensile failure at locations of girth weld flaws. For SBD, the finite [...] Read more.
Strain-based design (SBD) plays an important role in pipeline design and assessment of pipelines subjected to geo-hazards. Under such hazards, a pipe can be subjected to substantial plastic strains, leading to tensile failure at locations of girth weld flaws. For SBD, the finite element method (FEM) can be a reliable tool to calculate the tensile strain capacity (TSC) for better design in pipelines. This study aims to investigate the ductile fracture properties for specific vintage pipeline steel (API 5L grade of X52) using the extended finite element method (XFEM). Eight full-scale tests were simulated using the commercial finite element analysis software ABAQUS Version 6.17. Maximum principal strain is used to assess the damage initiation using the cohesive zone model (CZM) when the crack evolution is evaluated by fracture energy release. A proper set of damage parameters for the X52 materials was calibrated based on the ability of the model to reproduce the experimental results. These experimental results included the tensile strain, applied load, endplate rotation, and crack mouth opening displacement (CMOD). This study describes a methodology for validation of the XFEM and the proper damage parameters required to model crack initiation and propagation in X52 grades of pipeline. Full article
(This article belongs to the Special Issue Damage Sensing in Composites for Structural Health Monitoring)
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