A comparison of quasi-static indentation and low-velocity impact on composite overwrapped pressure vessels

Allen, Trevor; Ahmed, Sharif; Hepples, W.; Reed, P.A.S.; Sinclair, Ian; Spearing, Mark

doi:10.1177/0021998318774401

Cited by 13 publications

(5 citation statements)

References 21 publications

(40 reference statements)

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“…This method is less complicated than low-velocity impact (LVI) since it does not have oscillations and requires a lower rate of data collecting. Several studies have consistently shown a strong correlation between quasi-static indentation in laminated composites and low-velocity impact damage [14][15][16]. This relationship was also confirmed in the current investigation [17].…”

Section: Introductionsupporting

confidence: 88%

Numerical and experimental investigation of quasi-static indentation response of PVC foam sandwich and GFRP laminated composites

Zniker,

Feddal,

El Kouifat

et al. 2024

IRASE

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Composite materials are vulnerable to impacts that may occur during their use. Such transverse loads represent a significant threat to these materials because they can cause damage that is difficult to detect. Thus, understanding the mechanical behavior of composite materials during impacts is crucial for improving their damage resistance. Therefore, this study investigates the response of two commonly used composite panels in maritime transportation—a PVC core sandwich composite and a laminated GFRP composite—under quasi-static indentation (QSI). Using numerical simulations with Abaqus/Explicit, this investigation aims to anticipate mechanical characteristics and damage patterns during low-velocity impact. Results show a strong correlation between numerical and experimental data. The force-displacement curves aid in understanding damage sequences, with predicted maximum loads at 1.43% and 6.45% accuracy for laminated and sandwich composites. Both exhibit significant damage, including permanent indentation, matrix cracks, fiber fractures, and prevalent delamination around the impact point.

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Section: Introductionsupporting

confidence: 88%

Numerical and experimental investigation of quasi-static indentation response of PVC foam sandwich and GFRP laminated composites

Zniker,

Feddal,

El Kouifat

et al. 2024

IRASE

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“…The degree and area of damage caused by perforation to CFRP structures are much lower than that caused by impact. Therefore, indentation test was used to simulate the impact damage 50 . The QSI test was performed on a universal testing machine (LD24) at a speed of 1 mm/min as shown in Figure 2A.…”

Section: Methodsmentioning

confidence: 99%

“…Therefore, indentation test was used to simulate the impact damage. 50 The QSI test was performed on a universal testing machine (LD24) at a speed of 1 mm/ min as shown in Figure 2A. The tube was placed in the middle of the V-shaped support, followed by the test in the center of the tube.…”

Section: Quasi-static Indentation (Qsi) Testmentioning

confidence: 99%

Failure behavior and crashworthiness characteristic of repaired composites‐metal hybrid tubes by acoustic emission

Su,

Zhang,

et al. 2023

Polymer Composites

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In this study, the transverse indentation test was applied to simulate the damage caused by impact to the carbon fiber‐reinforced plastics (CFRP)/Al hybrid tube, and composites patch repair technology was used to repair the hybrid tube with different damage degrees. The effects of width and ply‐number of the patch on failure behavior and crashworthiness under axial load were investigated. It was concluded that the technology can effectively reduce stress concentration around the indentation and then improve compressive strength. Increasing the ply‐number of the patch can mitigate the failure mode of med‐length collapse of the hybrid tube and can effectively improve the crashworthiness indicators. The optimal repair strategy increased energy absorption by 54.02% and mean crushing force by 53.66%. However, the improvement of failure behavior by the ply‐number is limited by patch width. Acoustic emission and infrared thermography technologies were used to further analyze the damage characteristics and damage evolution of the hybrid tubes in pre‐crushing stage. It was found that the crushing form of the middle collapse tended to produce a more intense acoustic emission response and higher temperature change than that of the end crushing. In engineering practice, it provides a valuable reference for the reasonable repair of composite tubular structures and their hybrid structures.Highlights Composite repair technology is used for the repair of CFRP/Al hybrid tubes. The effects of ply‐number and width of patch on repair quality are studied. The technology can effectively improve residual crashworthiness of structure. The improvement of failure behavior by ply‐number is limited by patch width. The damage behavior of various crushing forms can be revealed by AE and IR.

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“…Allen et al carried out an experimental study to compare the structural behavior of composite pressure vessels under quasi-static indentation and low velocity impact. According to their study, the damage occurring differs in terms of matrix failure, but the quasi-static indentation test can be considered an analogue for a low-velocity impact test on composite vessels [17]. Farhood et al investigated the impact behavior of carbon/basalt hybrid composite pipes in an experimental study.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on the Capability of Modeling Approaches for Composite Cylinders under Low-Velocity Impact Loading

Rezaei Akbarieh,

Ma,

Sbarufatti

et al. 2024

J. Compos. Sci.

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Composite pressure vessels can be exposed to extreme loadings, for instance, impact loading, during manufacturing, maintenance, or their service lifetime. These kinds of loadings may provoke both visible and invisible levels of damage, e.g., fiber breakage matrix cracks and delamination and eventually may lead to catastrophic failures. Thus, the quantification and evaluation of such damages are of great importance. Considering the cost of relevant full-scale experiments, a numerical model can be a powerful tool for such a kind of study. This paper aims to provide a numerical study to investigate the capability of different modeling methods to predict delamination in composite vessels. In this study, various numerical modeling aspects, such as element types (solid and shell elements) and material parameters (such as interface properties), were considered to investigate delamination in a composite pressure vessel under low-velocity impact loading. Specifically, solid elements were used to model each layer of the composite pressure vessel, while, in another model, shell elements with composite layup were considered. Compared with the available experimental data from low-velocity impact tests described in the literature, the capability of these two models to predict both mechanical responses and failure phenomena is shown.

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A comparison of quasi-static indentation and low-velocity impact on composite overwrapped pressure vessels

Cited by 13 publications

References 21 publications

Numerical and experimental investigation of quasi-static indentation response of PVC foam sandwich and GFRP laminated composites

Numerical and experimental investigation of quasi-static indentation response of PVC foam sandwich and GFRP laminated composites

Failure behavior and crashworthiness characteristic of repaired composites‐metal hybrid tubes by acoustic emission

Numerical Investigation on the Capability of Modeling Approaches for Composite Cylinders under Low-Velocity Impact Loading

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