Review of Non-destructive Testing (NDT) Techniques and their Applicability to Thick Walled Composites

Jolly, Mark; Prabhakar, Arun; Sturzu, B.; Hollstein, Kai; Singh, Riti; Thomas, Sadiq; Foote, Peter; Shaw, Adam

doi:10.1016/j.procir.2015.07.043

Cited by 131 publications

(48 citation statements)

References 4 publications

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“…thermal wave imaging [5,6]. Overall, the NDT methods are the most accurate approach for inspecting composite materials.…”

Section: Effect Of Embedded Strain Gage On the Mechanical Behavior Ofmentioning

confidence: 99%

“…Composites materials damage is difficult to detect because the delamination and fiber breakage occurs inside of the material and the damage are not often apparent at the surface. To ensure the good functioning of composite structures, the nondestructive testing methods (NDT) are widely used [4,5]. These methods include ultrasound, laser, acoustic emission, X-ray, Foucault currents,…”

Section: Introductionmentioning

confidence: 99%

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Effect of Embedded Strain Gage on the Mechanical Behavior of Composite Structures

Belhouideg

Lagache

2017

J. Mod. Mater.

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A B S T R A C TFiber reinforced composites are increasingly used in several fields such as aeronautics and civil engineering due to their increased strength, durability, corrosion resistance, resistance to fatigue and damage tolerance characteristics. The embedding of sensor networks into such composite structures can be achieved. In the present study, glass fiber reinforced Epoxy composite with integrated strain gage was analysed. Firstly, the mechanical behaviour of this material with embedded strain gage is investigated. The as-prepared samples have been tested under tensile and flexural loading in order to study the effects of the strain gage embedding on the structural stiffness and strength of the composite. It was found that the tensile stiffness decreases by 5.8% and the tensile strength decrease by 1.5% when the strain gage embedded in the material. On the other hand, the flexural strength and stiffness is increased, respectively, by 1.5% and 5.5% with an embedded strain gage. The experiments showed that embedded strain gage is functional and demonstrated the successful integration of sensor networks into composite parts. The obtained results confirm that integrated strain gage can be used for the Structural Health Monitoring (SHM) of glass fiber reinforced Epoxy composite.

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“…thermal wave imaging [5,6]. Overall, the NDT methods are the most accurate approach for inspecting composite materials.…”

Section: Effect Of Embedded Strain Gage On the Mechanical Behavior Ofmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Embedded Strain Gage on the Mechanical Behavior of Composite Structures

Belhouideg

Lagache

2017

J. Mod. Mater.

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“…At the same time, the quality control of such complicated materials is extremely important to ensure the safety of construction. Various non-destructive methods are widely used to solve these problems [1][2][3]. The most popular ultrasonic methods provide them with a wide range of options for measuring the parameters of different materials [4,5].…”

Section: Introductionmentioning

confidence: 99%

Application of Dual Focused Ultrasonic Phased Array Transducer in Two Orthogonal Cross-Sections for Inspection of Multi-Layered Composite Components of the Aircraft Fuselage

Raišutis

Tumšys

2020

Materials

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Our previous studies have shown that the application of the proposed technique of a dual focused ultrasonic beam in two orthogonal cross-sections in passive (elevation) and active (azimuth) apertures of linear ultrasonic phased array transducer (ULPAT) enhances the 3D spatial resolution in the case of the inspection of conventional defects (flat bottom holes) or measurement of thickness of multi-layered metal composites. The objective of this work is to apply the proposed technique to enhance the spatial resolution of the ULPAT in the cases of detection and sizing demonstration of internal defects possessing spatially complex geometry, and during the inspection of defective multi-layered thin composite components (e.g., GLARE) of the aircraft fuselage. The specially prepared aluminium specimen possessing an internal defect of complicated geometry (crescent-shaped) was investigated. The simulation results and experiments demonstrate the resolution enhancement, higher amplitude of the reflections (e.g., 2.5 times or +8 dB) and spatial improvement in the defect detection even in the case of the non-perpendicular incidence of ultrasonic waves to the complex geometry surface of the internal defect. During the experiments, the multi-layered GFRP-metal based composite sample GLARE 3-3/2 was investigated in the case of the single-side access to the surface of the sample. The internal artificial delamination type defect of 25 mm was detected with a higher accuracy. Compared to the limitations of conventional ULPAT, the relative error (32%) (at the −6 dB level) of lateral defect dimensions estimation was completely reduced.

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“…Therefore it is important to develop a high resolution multiple metallic material additive manufacturing technology to embed tracking codes as a new anticounterfeiting approach. The embedded safety features should be easily and effectively identified by ordinary non-destructive testing approaches widely applied in industry, for instance, thermography, radiography, and fluorescent methods [26,27], and survive in the harsh working environment [28]. The resolution of SLM is typically 20-50 m [29], much higher than that of directed energy deposition approaches [30].…”

Section: Introductionmentioning

confidence: 99%

Embedding anti-counterfeiting features in metallic components via multiple material additive manufacturing

Wei

Sun

Huang

et al. 2018

Additive Manufacturing

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Review of Non-destructive Testing (NDT) Techniques and their Applicability to Thick Walled Composites

Cited by 131 publications

References 4 publications

Effect of Embedded Strain Gage on the Mechanical Behavior of Composite Structures

Effect of Embedded Strain Gage on the Mechanical Behavior of Composite Structures

Application of Dual Focused Ultrasonic Phased Array Transducer in Two Orthogonal Cross-Sections for Inspection of Multi-Layered Composite Components of the Aircraft Fuselage

Embedding anti-counterfeiting features in metallic components via multiple material additive manufacturing

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