Progressive Crushing of Polymer Matrix Composite Tubular Structures: Review

Rabiee, Ali; Ghasemnejad, H.

doi:10.4236/ojcm.2017.71002

Cited by 19 publications

(19 citation statements)

References 124 publications

(120 reference statements)

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“…In previous studies [19] [24], the crushing behaviour of box composite sections were investigate based on their energy absorption capability. It was prevailing that at 10˚ the energy absorption was significantly increased, in contrast, [8] the author studied cylindrical GFRP composite section and concluded that the increase in lateral inclination angle causes a significant drop in energy absorption and this is due to the geometry differences of two studies. The experimental morphologies (see Figure 3) of axial and off-axis angle 5˚ illustrated bundle fracture and close to brittle failure mechanism, which is a combination of lamina bending and transverse shearing modes.…”

Section: Crushing Behaviour Of Composite Sections Under Axial and Offmentioning

confidence: 98%

“…Different types of crashworthy components were studied in the past two decades including material systems, various geometrical shapes and various fabrication methods were developed and axially tested [8] [9]. Since during an impact event, the thin-walled structures undergo severe collapse failure and in oblique loading conditions, it could suffer from drastic energy absorption reduction.…”

Section: Introductionmentioning

confidence: 99%

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Laminate Tailoring of Composite Tubular Structures to Improve Crashworthiness Design at Off-Axis Loading

Rabiee¹,

Ghasemnejad²

2018

OJCM

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This paper presents experimental and numerical investigation on the parameters effecting energy absorption capability of composite tubular structures at oblique loading to improve crashworthiness performance. Various inclined angles of 5˚, 10˚, 20˚ and 30˚ were selected for the study of off-axis loading. The results indicate that by increasing the lateral inclination angle the mean crushing force and also energy absorption capability of all tested sections decreased. From design perspective, it is necessary to investigate the parameters effecting this phenomenon. The off-axis loading effect that causes significant reduction in energy absorption was investigated and the effected parameters were improved to increase energy absorption capability. To establish this study, 10˚ off-axis loading was chosen to illustrate the obtained improvement in energy absorption capability. Five cases were studied with combinations of ply-orientation and flat trimming with 45˚ chamfer. This method was applied to the integrated 10˚ off-axis loading and the final results showed significant improvement in energy absorption capability of composite absorbers. Finite element model (FEM) was developed to simulate the crushing process of axial and off-axis composite section in LS-DYNA and the results were in good agreement with the experimental data.

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Section: Crushing Behaviour Of Composite Sections Under Axial and Offmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Laminate Tailoring of Composite Tubular Structures to Improve Crashworthiness Design at Off-Axis Loading

Rabiee¹,

Ghasemnejad²

2018

OJCM

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“…Irrespective of the component of structures material, progressive crushing failure and stability during the compression loading are major in determining the higher level of energy absorption [12]. Thus, to achieve the above criteria, there is a consensus that the structural geometry is counting as a key parameter influencing the crashworthiness level of composite material [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…it was stated, improvement in crushing behavior and energy absorption are also sensitive to the length of tubes. Many authors [12,19] carried out laboratory works on the crashworthiness characteristics of circular and square cross-section composite tubes. Furthermore, the radial corrugation significantly affects the energy obtain of the composite structures [20].…”

Section: Introductionmentioning

confidence: 99%

Effect of Geometric Shape on the Crushing Performance of Natural Jute Mat/Epoxy Specimens Under Axial Quasi-Static Compression

Hamza¹,

Tjprc²

2020

IJMPERD

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The interest in the using of natural composite has been increased significantly in recent years in many engineering fields due to their distinctive characteristics; these as low weights, high-energy dissipation ability, and it's considered ecofriendly. In this paper, an experimental investigation is done on the effect of structure geometry on the crashworthiness characteristics of woven jute mat/epoxy composite specimens. The main objective is to understand the influence of the geometrical shape, and layers numbers on the energy absorption of composite specimens under uniaxial quasi-static loading. The twelve hollow specimens were manufactured by combination of manual lay-up and vacuum bladder moulding technique using bi-directional natural jute mat (with two and three layers) and epoxy resin, each with 50mm inner diameter and 100mm length. Three different cross-sectional shapes were used; the hexagonal, octagonal, and decagonal of specimens. From the current unique experiment, it was exhibited most of the composite samples demonstrated stable and progressive deformation with acceptable repeatability during the test process. It also showed that the deformation characteristics and the energy absorption of the octagonal cross-section shape are better than the other cross-section shapes such as hexagonal and decagonal cross-sections shapes. Furthermore, the three laminated layers contributed to high specific energy absorption (SE) and better crushing efficiency (ɳc) for each profile. Overall, the octagonal pattern configuration with three plies can be considered as optimal for crashworthiness of structure application compared to other composite samples.

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“…The effective response of energy absorption of thin-walled composite tubular absorbers depends on the design of its sub-structure; and their stability is determined by lay-up, geometry, laminate design, and strain rate sensitivity and their progressive failure mechanism. The main factor affecting progress crushing of tubular structures is interlaminar and intralaminar fracture toughness [7].…”

Section: Introductionmentioning

confidence: 99%

Lightweight design to improve crushing behaviour of multi-stitched composite tubular structures under impact loading

Rabiee

Ghasemnejad

2019

Thin-Walled Structures

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This paper presents experimental and numerical studies on the effect of multi-stitching pattern on the energy absorption capability of composite tubular structures under impact loading. A new multi-stitching pattern was developed to study the increase of specific energy absorption capabilities in GFRP and CFRP crash absorbers. The stitching pattern on both specimens showed a significant increase in energy absorption capability under impact loading. According to our results, the specific energy absorption of GFRP and CFRP composite tubes are 17% and 18% higher than non-stitched specimens respectively. A multi-shell finite element model was constructed to predict the axial crushing behaviour and energy absorption capability of composite structures under impact loading. The method is based on an energy-based contact card modelling technique in the stitched and non-stitched area, and the initiation of main central crack growth occurs when the critical separation (PARAM function) is attained, and this represents the functionality of the stitched area during an impact event. The developed numerical approach is efficient in terms of accuracy and simplicity in comparison with the existing methods for multi-layered composites structures.

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Progressive Crushing of Polymer Matrix Composite Tubular Structures: Review

Cited by 19 publications

References 124 publications

Laminate Tailoring of Composite Tubular Structures to Improve Crashworthiness Design at Off-Axis Loading

Laminate Tailoring of Composite Tubular Structures to Improve Crashworthiness Design at Off-Axis Loading

Effect of Geometric Shape on the Crushing Performance of Natural Jute Mat/Epoxy Specimens Under Axial Quasi-Static Compression

Lightweight design to improve crushing behaviour of multi-stitched composite tubular structures under impact loading

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