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

Chiu, Louis Ngai Sum; Falzon, Brian; Ruan, Dong; Xu, Shanqing; Thomson, Rodney S.; Chen, Bernard; Yan, Wenyi

doi:10.1016/j.compstruct.2015.04.057

Cited by 96 publications

(55 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar observations could also be found in literatures [4; 8; 17; 18]. Besides, Chiu et al [2] investigated the behavior of a composite energy absorber made of carbon/epoxy under static and dynamic loading with a strain rate of 0 to 100 ‫ݏ‬ ିଵ . It was shown that the energy absorption was found to be independent of strain rate.…”

Section: Introductionsupporting

confidence: 69%

Effects of fiber orientation and wall thickness on energy absorption characteristics of carbon-reinforced composite tubes under different loading conditions

Wang

Feng

et al. 2016

Composite Structures

112

View full text Add to dashboard Cite

Section: Introductionsupporting

confidence: 69%

Effects of fiber orientation and wall thickness on energy absorption characteristics of carbon-reinforced composite tubes under different loading conditions

Wang

Feng

et al. 2016

Composite Structures

112

View full text Add to dashboard Cite

“…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

Self Cite

View full text Add to dashboard Cite

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.

show abstract

“…Chiu et al [19] investigated the response of a tulip-triggered cylindrical energy absorbing structure undergoing crushing at increasing strain rates. In their work, the energy absorption was found to be independent of strain rate as the total energy absorption appeared to be largely associated with fiber-dominated fracture, which is independent of strain rate within the studied range.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the energy absorption and contact force of unstiffened and grid-stiffened composite cylindrical shells under lateral compression

Moeinifard

Liaghat

Rahimi

et al. 2016

Composite Structures

View full text Add to dashboard Cite

Please cite this article as: Moeinifard, M., Liaghat, G., Rahimi, G., Talezadehlari, A., Hadavinia, H., Experimental investigation on the energy absorption and contact force of unstiffened and grid-stiffened composite cylindrical shells under lateral compression, Composite Structures (2016), doi: http://dx.doi.org/10. 1016/j.compstruct. 2016.05.067 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractIn this paper, two different types of unstiffened and lozenge grid-stiffened Eglass/Epoxy composite cylindrical shells are experimentally investigated under lateral compression. The composite shells are compressed in two different loading conditions; between two rigid flat platens and between a rigid flat platen and a rigid cylindrical indenter which is aligned perpendicular to the shell axis. The effects of the grid stiffeners on the stiffness, contact force and energy absorption capacity of the composite cylindrical shells are investigated in the two mentioned loading conditions. Incorporation of grid stiffeners in the composite cylindrical shells leads to an increase in the structural stiffness, contact force and energy absorbing capacity in both loading conditions. Furthermore, it is observed that the effect of the stiffeners on the structural stiffness is dominant in the elastic deformation stage of the compression processes. The results show that stiffening the composite cylindrical shells with lozenge grid stiffeners can increase the specific energy absorption almost twice in comparison with the unstiffened composite shells; and among all of the specimens, the grid-stiffened structures compressed between two rigid flat platens have the highest specific energy absorption, while the unstiffened structures compressed by the cylindrical indenter have the least capacity to absorb energy.

show abstract

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

Cited by 96 publications

References 31 publications

Effects of fiber orientation and wall thickness on energy absorption characteristics of carbon-reinforced composite tubes under different loading conditions

Effects of fiber orientation and wall thickness on energy absorption characteristics of carbon-reinforced composite tubes under different loading conditions

Modelling the crush behaviour of thermoplastic composites

Experimental investigation on the energy absorption and contact force of unstiffened and grid-stiffened composite cylindrical shells under lateral compression

Contact Info

Product

Resources

About