Damage Identification in Strongly Loaded Carbon-Reinforced Composite Using the Electric Resistance Change Procedure*
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Jacek Gadomski
Abstract
Composite materials are often used as primary structures in important devices, like transport facilities. However, prediction of their work and damage propagation is not easy. Operating of the structure causes delaminations and fibers cracking which are difficult to detect by visual investigation. The paper presents an experiment in which an electrical resistance change method was used for investigating damage in strongly loaded carbon-fiber reinforced plastic composites, where the conducting carbon fiber was used as a sensor for defect detection. The method is shown by which the electric potential difference was measured at the carbon/epoxy composite beam type specimen exposed to the action of pure bending moment.
Kurzfassung
Kompositwerk stoffe werden häufig für Primärstrukturen in wichtigen Teilen verwendet, wie zum Beispiel Transporteinrichtungen. Eine Vorhersage ihres Service- und Schädigungsverhaltens ist jedoch nicht einfach. Die Verwendung solcher Strukturen verursacht Delaminationen und Faserrissbildung, die mittels visueller Inspektion schwer zu entdecken sind. Im vorliegenden Beitrag wird ein Versuch gezeigt, in dem das Widerstandsmessverfahren angewendet wurde, um die Schädigung in schwer belasteten kohlefaserverstärkten Kompositen zu untersuchen, in dem die Kohlefaser als Sensor für die Defektdetektion verwendet wurde. Es wird eine Methode vorgestellt, mit der die elektrische Potentialdifferenz eines balkenähnlichen Karbon/Epoxy-Komposit-Probekörpers unter einem reinen Biegemoment gemessen wurde.
References
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© 2011, Carl Hanser Verlag, München
Articles in the same Issue
- Inhalt/Contents
- Inhalt
- Fachbeiträge/Technical Contributions
- Fatigue Criterion Based on the Novoshilov Criterion for Non-proportional Loadings*
- The Dynamics of Loading and Growth of Fatigue Cracks in the Proximity to Rolling Contact of Elements with Defects on Their Surface*
- Modelling of Stresses in Welded Joints Under Consideration of Plastic Strains in Fatigue Life Calculations*
- Fatigue Energy Dissipation in Trabecular Bone Samples with Stepwise-Increasing Amplitude Loading*
- Damage Identification in Strongly Loaded Carbon-Reinforced Composite Using the Electric Resistance Change Procedure*
- Mechanical Properties and Corrosion Behaviour of MIG Welded 5083 Aluminium Alloy
- Kenaf Performance in PP/EVA/Clay Biocomposite
- Topology Optimization for a Micro/Nano Compliant Grip and Move with Parallel Movement Tips Using Multi-Objective Compliance
- Modelling and Experimental Study of Mechanical Behaviour of Walls Produced by Different Knitting
- Vorschau/Preview
- Vorschau
Articles in the same Issue
- Inhalt/Contents
- Inhalt
- Fachbeiträge/Technical Contributions
- Fatigue Criterion Based on the Novoshilov Criterion for Non-proportional Loadings*
- The Dynamics of Loading and Growth of Fatigue Cracks in the Proximity to Rolling Contact of Elements with Defects on Their Surface*
- Modelling of Stresses in Welded Joints Under Consideration of Plastic Strains in Fatigue Life Calculations*
- Fatigue Energy Dissipation in Trabecular Bone Samples with Stepwise-Increasing Amplitude Loading*
- Damage Identification in Strongly Loaded Carbon-Reinforced Composite Using the Electric Resistance Change Procedure*
- Mechanical Properties and Corrosion Behaviour of MIG Welded 5083 Aluminium Alloy
- Kenaf Performance in PP/EVA/Clay Biocomposite
- Topology Optimization for a Micro/Nano Compliant Grip and Move with Parallel Movement Tips Using Multi-Objective Compliance
- Modelling and Experimental Study of Mechanical Behaviour of Walls Produced by Different Knitting
- Vorschau/Preview
- Vorschau