Spall Behaviour of Carbon Epoxy Unidirectional Composites as Compared to Aluminum and Iron

Gilath, I.; Eliezer, S.; Shkol'nik, S.M.

doi:10.1177/002199839002401102

Cited by 13 publications

(5 citation statements)

References 9 publications

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“…All the samples have been coated with aluminum painting before laser irradiation in order to produce a more controlled shock loading. Indeed, if the laser interaction with the aluminum has already been deeply investigated, very few investigations have been conducted on the laser interaction on composite materials [27][28][29][30]. Consequently, the correlation between the laser intensity and the corresponding pressure loading on the sample front face is well documented for aluminum.…”

Section: The Laser Shock Wave Techniquementioning

confidence: 99%

A study of composite material damage induced by laser shock waves

Ecault

Boustie²,

Touchard³

et al. 2013

Composites Part A: Applied Science and Manufacturing

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A laser shock wave technique has been used to study the damage tolerance of T800/M21 CFRP (Carbon Fiber Reinforced Polymer) composite material with different lay-ups. Different levels of damage have been created according to various laser irradiation conditions. Several characterization methods such as Optical Microscopy, X-ray Radiography, or Interferometric Confocal Microscopy have been used to quantify these defects. The nature of the defects induced by the shock wave propagation has been studied. The sensitivity of the composite material damage to the shock conditions has been shown and quantified. Moreover, the experimental results gathered with each technique have been compared to each other and it leads to a better understanding of the CFRP behavior under high dynamic loading. These original results have enabled the definition of a specific damage criterion for CFRP under dynamic loading

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Section: The Laser Shock Wave Techniquementioning

confidence: 99%

A study of composite material damage induced by laser shock waves

Ecault

Boustie²,

Touchard³

et al. 2013

Composites Part A: Applied Science and Manufacturing

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show abstract

“…Gilath has also studied the response of unidirectional CFRP composites to a laser-induced shock [13,14]. The SATAC research program (Shock Adhesion Test for Adhesively Bonded Composites) aims to study the composites behaviour at very high strain rate in order to test their adhesion [15][16][17].…”

mentioning

confidence: 99%

Study of the response of CFRP composite laminates to a laser-induced shock

Gay

Berthe

Boustie

et al. 2014

Composites Part B: Engineering

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. b s t r a c tLaser-induced shock yields to a local tensile stress within a sample. This high strain rate stress can be used to verify the bond strength between two layers. This method has been applied to Carbon Fibre Reinforced Polymer (CFRP) composite laminates, involved in aeronautic or defense industry. Experiments have been carried out on high power laser facility in the nanosecond regime. A velocimetry interferometer has been used to record the material velocity at the back surface of the samples. This study provides a comprehensive approach of the response of CFRP laminates of different thicknesses to a shock load normal to the fibres direction. The stress waves generation and propagation within the laminate and the induced delamination are key issues of this work. The main result is the ability of the technique to evaluate the out-of-plane strength of these laminates.

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“…Gilath has studied the response of unidirectional CFRP composites to a laser-induced shock (Gilath et al 1990(Gilath et al , 1993. The SATAC program (Shock Adhesion Test for Adhesively Bonded Composites) aimed to study the composites behaviour at very high strain rate in order to verify their adhesion (Perton et al 2011, Ecault et al 2013, Gay et al 2013.…”

Section: Introductionmentioning

confidence: 99%

Effects of the shock duration on the response of CFRP composite laminates

Gay¹,

Berthe²,

Boustie³

et al. 2014

J. Phys. D: Appl. Phys.

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Science Arts & Métiers (SAM)is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. This is an author-deposited version published in: http://sam.ensam.eu Handle ID AbstractShock loads induce a local tensile stress within a sample. The location and amplitude of this high strain rate stress can be monitored respectively by the duration and intensity of the shock. The process is applied to carbon fibre reinforced polymer (CFRP) composites, involved in aeronautic or defense industry. This paper describes the response of CFRP laminates of different thicknesses to a shock load normal to the fibres direction. The effects of the shock duration on the wave propagation are key issues of this work. Experiments have been performed on high power laser facilities and on a high power pulsed generator to get a wide range of pulse duration from fs to µs. Numerical simulation provides a comprehensive approach of the wave propagation and tensile stress generation within these complex materials. The main result concerns the relation between the load duration, the tensile stress and the induced delamination within 1, 4 and 8 ply composite laminates.

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Spall Behaviour of Carbon Epoxy Unidirectional Composites as Compared to Aluminum and Iron

Cited by 13 publications

References 9 publications

A study of composite material damage induced by laser shock waves

A study of composite material damage induced by laser shock waves

Study of the response of CFRP composite laminates to a laser-induced shock

Effects of the shock duration on the response of CFRP composite laminates

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