A new composite structure impact performance assessment program

Feraboli, Paolo; Kedward, Keith T.

doi:10.1016/j.compscitech.2005.09.009

Cited by 91 publications

(79 citation statements)

References 19 publications

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“…The decreased gradient of the slope with increasing the amount of induced damage is apparent. This is attributed to the induced delamination, which conforms to previously published findings Feraboli and Kedward (2006).…”

Section: Transverse Load-bearing Capacitysupporting

confidence: 80%

“…QSL test allows determining the transverse stiffness of pristine and damaged coupons Feraboli and Kedward (2006). The specific standard test method ASTM D6264 ASTM-D6264 (2007) describes the procedure to carry on measurements of the damage resistance of laminated composites to a concentrated quasistatic indentation force, the support fixture.…”

Section: Quasi-static Loading Testingmentioning

confidence: 99%

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Comparative experimental analysis of the effect caused by artificial and real induced damage in composite laminates

Pérez

Gil

Sánchez

et al. 2014

Composite Structures

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This paper presents the results of an extensive experimental campaign aimed to examine the effect upon the vibration response and on the residual load-bearing capacity caused by both: isolated artificially induced interlaminar damage and low-velocity impact induced damage in composite laminates. The experimental programme included modal testing, drop-weight impact testing, ultrasonic inspection, transverse quasi-static loading testing and compression testing conducted on a set of 72 carbon fibre-reinforced composite laminated coupons. Both types of damage caused measurable changes in laminate performance, however marked divergent trends were observed. The results allowed for conclusions to be drawn regarding the adequacy of the artificial damage approach and highlighted the importance and role of other forms of degradation upon damage tolerance of laminated composites containing damage.

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Section: Transverse Load-bearing Capacitysupporting

confidence: 80%

Section: Quasi-static Loading Testingmentioning

confidence: 99%

Comparative experimental analysis of the effect caused by artificial and real induced damage in composite laminates

Pérez

Gil

Sánchez

et al. 2014

Composite Structures

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“…Therefore, to successfully design damage-tolerant composite structures, it is necessary to have a reliable analysis tool to aid in understanding the complex phenomena that take place and is capable of estimating the consequences of an impact [9]. This is still an open question, despite the available broad literature, which involves analytical, experimental and numerical approaches [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…By analysing these plots, more details about the material damaging under impact can be derived. In particular, ∆TMin (negative) values describe a concavity, having a width ∆t along the x axis and a peak (height, tp) along the y axis; tp identifies the instant the impactor reaches its strongest pushing force, or better the peak contact force [11,21,22]. Besides this, the appearance of the first hot spot (∆T > 0) is generally concurrent with the formation of micro-cracks in the matrix, and this may occur before the surface reaches its maximum curvature (tp) for a given E value.…”

Section: Impact Testsmentioning

confidence: 99%

Infrared Thermography for Inline Monitoring of Glass/Epoxy under Impact and Quasi-Static Bending

2018

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Featured Application: The scope of this work is to show the potential of infrared thermography to collect important information to be exploited for the characterization of new composite materials. An infrared imaging device can be included in most mechanical test setups for the in-line monitoring of samples undergoing either impact or quasi-static bending, or else fatigue tests. As an important assertion, the use of infrared thermography allows for fast inspection of relatively large surfaces in a remote way without any alteration of the inspected part and without safety-at-work concerns.Abstract: In this work, glass/epoxy has been chosen as case study as it represents the most-used composite material, being appropriate for a vast variety of applications and a reasonable performance/cost compromise. This material has already been inline impact-monitored with infrared thermography, mostly for feasibility tests. Now, impact tests are repeated by changing some parameters and by inline monitoring simultaneously with two different infrared cameras to share a high frame rate and spatial resolution at the same time. In addition, glass/epoxy is monitored also while it is under quasi-static bending tests. The aim of this paper is to show what it is possible to learn from thermal signatures developing in the same material when it is either impacted or under quasi-static bending.

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“…However, the introduction of a new material requires thorough knowledge of its properties and performance inservice, which is a long way on requiring many tests and related effective instrumentation [2].…”

Section: Introductionmentioning

confidence: 99%

Infrared thermography to inline monitoring of glass fibres based composites under impact and quasi-static bending tests

Boccardi¹,

Carlomagno²,

Meola³

et al. 2018

Proceedings of the 2018 International Conference on Quantitative InfraRed Thermography

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This work would bear witness for the benefits of using infrared thermography during characterization of composite materials. Specimens made of glass fibres embedded in either a thermoset, or a thermoplastic, matrix are considered and subjected to mechanical tests: impact and quasi-static bending. Impact tests are performed with a modified Charpy pendulum, while quasi-static bending with a standard three point testing configuration setup. An infrared camera views the specimen surface opposite to the load application and acquires sequences of thermal images at a given frame rate. The acquired sequences are later post-processed to get information about damage initiation and propagation.

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A new composite structure impact performance assessment program

Cited by 91 publications

References 19 publications

Comparative experimental analysis of the effect caused by artificial and real induced damage in composite laminates

Comparative experimental analysis of the effect caused by artificial and real induced damage in composite laminates

Infrared Thermography for Inline Monitoring of Glass/Epoxy under Impact and Quasi-Static Bending

Infrared thermography to inline monitoring of glass fibres based composites under impact and quasi-static bending tests

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