Crushing and energy absorption performance of different geometrical shapes of small-scale glass/polyester composite tubes under quasi-static loading conditions

Palanivelu, Sivakumar; Paepegem, Wim Van; Degrieck, Joris; Vantomme, John; Kakogiannis, Dimitrios; Ackeren, Johan Van; Hemelrijck, Danny Van; Wastiels, Jan

doi:10.1016/j.compstruct.2010.06.021

Cited by 109 publications

(71 citation statements)

References 29 publications

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“…6a. These are consistent with the findings by Palanivelu et al [23] and Chiu et al [24]. In the 0˚ plies, the main forms of failure are ply splitting and brittle fibre fracture via bending or shearing.…”

Section: Typical Damage Modessupporting

confidence: 82%

Modelling the crush behaviour of thermoplastic composites

Tan

Falzon

2016

Composites Science and Technology

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Thermoplastic composites are likely to emerge as the preferred solution for meeting the high-volume production demands of passenger road vehicles. Substantial effort is currently being directed towards the development of new modelling techniques to reduce the extent of costly and time consuming physical testing. Developing a high-fidelity numerical model to predict the crush behaviour of composite laminates is dependent on the accurate measurement of material properties as well as a thorough understanding of damage mechanisms associated with crush events. This paper details the manufacture, testing and modelling of self-supporting corrugated-shaped thermoplastic composite specimens for crashworthiness assessment. These specimens demonstrated a 57.3% higher specific energy absorption compared to identical specimen made from thermoset composites. The corresponding damage mechanisms were investigated in-situ using digital microscopy and post analysed using Scanning Electron Microscopy (SEM). Splaying and fragmentation modes were the 2 primary failure modes involving fibre breakage, matrix cracking and delamination. A mesoscale composite damage model, with new non-linear shear constitutive laws, which combines a range of novel techniques to accurately capture the material response under crushing, is presented. The force-displacement curves, damage parameter maps and dissipated energy, obtained from the numerical analysis, are shown to be in a good qualitative and quantitative agreement with experimental results. The proposed approach could significantly reduce the extent of physical testing required in the development of crashworthy structures.

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Section: Typical Damage Modessupporting

confidence: 82%

Modelling the crush behaviour of thermoplastic composites

Tan

Falzon

2016

Composites Science and Technology

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“…Other investigations were reported on the effect of triggering of different cross-sectional shapes. It is reported that under quasi-static axial crushing the peak load is at maximum with edge triggering at 45˚ compared to 90˚ tulip triggering [45]. However, tulip triggering showed higher specific energy absorption for all cross section tubes tested than edge triggered.…”

Section: Trigger Mechanismmentioning

confidence: 98%

“…Palanivelu et al [45] In summary circular shapes geometry have outstanding performance compared to other geometry shapes tested. Moreover, compared to other shapes apart from radial corrugated circular, circular shapes geometry absorbs most of axial crushing energy.…”

Section: Structural Geometrymentioning

confidence: 99%

“…Palanivelu et al [44] showed that crushing state was influenced by aspect ratio of t d or t w (wall thickness/outer diameter or width) of 0.045 in different shape i.e. both geometries of square and round tube crushed progressively, although catastrophic crush in square tube was observed, however in aspect ratio of 0.083 both shapes were progressively crushed [45]. It is proven that progressive crushing for composite tubes of circular cross section can be obtained by t D ratio of 0.015 -0.25 whereas t D ratio of less than 0.015 results into catastrophic failure [46].…”

Section: Introductionmentioning

confidence: 99%

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Progressive Crushing of Polymer Matrix Composite Tubular Structures: Review

Rabiee¹,

Ghasemnejad²

2017

OJCM

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The present paper reviews crushing process of fibre-reinforced polymer (FRPs) composites tubular structures. Working with anisotropic material requires consideration of specific parameter definition in order to tailor a well-engineered composite structure. These parameters include geometry design, strain rate sensitivity, material properties, laminate design, interlaminar fracture toughness and off-axis loading conditions which are reviewed in this paper to create a comprehensive data base for researchers, engineers and scientists in the field. Each of these parameters influences the structural integrity and progressive crushing behaviour. In this extensive review each of these parameters is introduced, explained and evaluated. Construction of a well-engineered composite structure and triggering mechanism to strain rate sensitivity and testing conditions followed by failure mechanisms are extensively reviewed. Furthermore, this paper has mainly focused on experimental analysis that has been carried out on different types of FRP composites in the past two decades.

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“…Damage and fracture in a composite laminate are complex phenomena [2], with a multitude of interacting mechanisms which affect the final response [3][4][5][6][7]. The ability to accurately predict the initiation and progression of damage in a structure through finite element modelling, is highly advantageous in the design process for composite structures by reducing the need for expensive and time-consuming subcomponent testing [1].…”

Section: Introductionmentioning

confidence: 99%

Numerical Considerations for the Implementation of a Comprehensive Composite Damage Model

Chiu¹,

Falzon

Chen³

et al. 2016

AMM

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A comprehensive continuum damage mechanics model [1] had been developed to capture the detailed behaviour of a composite structure under a crushing load. This paper explores some of the difficulties encountered in the implementation of this model and their mitigation. The use of reduced integration element and a strain softening model both negatively affect the accuracy and stability of the simulation. Damage localisation effects demanded an accurate measure of characteristic length. A robust algorithm for determining the characteristic length was implemented. Testing showed that this algorithm produced marked improvements over the use of the default characteristic length provided by Abaqus. Zero-energy or hourglass modes, in reduced integration elements, led to reduced resistance to bending. This was compounded by the strain softening model, which led to the formation of elements with little resistance to deformation that could invert if left unchecked. It was shown, through benchmark testing, that by deleting elements with excess distortions and controlling the mesh using inbuilt distortion/hourglass controls, these issues can be alleviated. These techniques contributed significantly to the viability and usability of the damage model.

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Crushing and energy absorption performance of different geometrical shapes of small-scale glass/polyester composite tubes under quasi-static loading conditions

Cited by 109 publications

References 29 publications

Modelling the crush behaviour of thermoplastic composites

Modelling the crush behaviour of thermoplastic composites

Progressive Crushing of Polymer Matrix Composite Tubular Structures: Review

Numerical Considerations for the Implementation of a Comprehensive Composite Damage Model

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