Experimental and numerical investigation of the crushing response of an open section composite energy absorbing element

Joosten, Mathew; Dutton, S.; Kelly, Don; Thomson, Rodney S.

doi:10.1016/j.compstruct.2010.08.011

Cited by 73 publications

(38 citation statements)

References 16 publications

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“…Triggering has been shown to be an important aspect of energy absorbent structure design, with chamfering on the loading surface being most common [19]. Other trigger mechanisms studied include the tulip [12,20] and ply drop [21]. Some authors have designed the structures so that they are self-triggering, for example, using corrugated [22] or hourglass profiles [20].…”

Section: = (2)mentioning

confidence: 99%

Crush responses of composite cylinder under quasi-static and dynamic loading

Chiu

Falzon

Ruan

et al. 2015

Composite Structures

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General rights Copyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. AbstractDespite the abundance of studies investigating the performance of composite structures under crush loading, disagreement remains in the literature regarding the effect of increased strain rate on the crush response. This study reports an experimental investigation of the behaviour of a carbon-epoxy composite energy absorber under static and dynamic loading with a strain rate of up to 100 −1 . Good consistency, among samples tested under the same strain rate, was achieved in the identified damage modes and the measured force responses. The energy absorption was found to be independent of strain rate as the total energy absorption appeared to be dominated by fibredominated fracture, which is independent of strain rate within the studied range. The results from this study can inform the design of energy absorbing structures.

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Section: = (2)mentioning

confidence: 99%

Crush responses of composite cylinder under quasi-static and dynamic loading

Chiu

Falzon

Ruan

et al. 2015

Composite Structures

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“…Crash absorbers for aerospace applications Plate crushing Bilinear: [351] Open section thin-walled beams Bilinear: [352,354] Sandwich plate [355] Meccanica Several references pointed out that, for successful modeling using interface elements, two conditions must be met: (1) the compliance introduced by the cohesive element before crack propagation should be negligible; (2) the element size should be less than the length of the cohesive zone [126,248].…”

Section: Low Velocity Impactsmentioning

confidence: 99%

Cohesive zone models and impact damage predictions for composite structures

2015

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This article surveys existing cohesive zone models (CZM) and their use in numerical simulations for analysis impacts on composite structures and predicting the damage induced. These models are used for matrix cracks and delamination. The first part of article gives the required background on failure criteria for predicting the onset of delaminations, on fracture mechanics and the various types of CZM. The second part discusses applications of CZM to several types of impact problems with composite structures. Applications for these models to other problems are briefly mentioned at the end. CZM are now part of state of the art numerical simulations with progressive damage analysis.

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“…Traditionally stacked-shell models have been used to predict delamination from transverse impact on laminates [1][2][3]. Some work has also been presented on the use of stacked-shell models for predicting the crushing behaviour of energy absorber elements [4][5][6]. The novel application of the stacked-shell approach in this paper is significant, because a bolted joint is a much more complex and general system than the previous two applications.…”

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confidence: 99%

A Stacked-Shell Finite Element Approach for Modelling a Dynamically Loaded Composite Bolted Joint Under in-Plane Bearing Loads

et al. 2013

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This paper presents the results of a study into a novel application of the "stackedshell" laminate modelling approach to dynamically loaded bolted composite joints using the explicit finite element code PAM-CRASH. The stacked-shell approach provides mediumhigh fidelity resolution of the key joint failure modes, but is computationally much more efficient than full 3D modelling. For this work, a countersunk bolt in a composite laminate under in-plane bearing loading was considered. The models were able to predict the onset of damage, failure modes and the ultimate load of the joint. It was determined that improved debris models are required in order to accurately capture the progressive bearing damage after the onset of joint failure.

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Experimental and numerical investigation of the crushing response of an open section composite energy absorbing element

Cited by 73 publications

References 16 publications

Crush responses of composite cylinder under quasi-static and dynamic loading

Crush responses of composite cylinder under quasi-static and dynamic loading

Cohesive zone models and impact damage predictions for composite structures

A Stacked-Shell Finite Element Approach for Modelling a Dynamically Loaded Composite Bolted Joint Under in-Plane Bearing Loads

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