Energy absorption behaviour of braided basalt composite tube

2017 ◽  
Vol 27 (5) ◽  
pp. 467-481 ◽  
Author(s):  
M. Nazrul Roslan ◽  
M. Yazid Yahya ◽  
Z. Ahmad ◽  
A.R. Azrin Hani
Keyword(s):  
Energy Absorption ◽  
Composite Tube

scholarly journals Compressive Property of an Auxetic-Knitted Composite Tube Under Quasi-Static Loading

2020 ◽  
Vol 20 (2) ◽  
pp. 101-109 ◽  
Author(s):  
Andrews Boakye ◽  
Rafui King Raji ◽  
Pibo Ma ◽  
Honglian Cong
Keyword(s):  
Energy Absorption ◽  
Compression Test ◽  
Impact Loading ◽  
Static Loading ◽  
Fiber Content ◽  
Compressive Property ◽  
Static Compression ◽  
Arrow Head ◽  
Composite Tube ◽  
Quasi Static Compression

AbstractThis research investigates the compressive property of a novel composite based on a weft-knitted auxetic tube subjected to a quasi-static compression test. In order to maximize the influence of the fiber content on the compression test, a Kevlar yarn was used in knitting the tubular samples using three different auxetic arrow-head structures (i.e. 4 × 4, 6 × 6 and 8 × 8 structure). A quasi-static compression test was conducted under two different impact loading speeds (i.e. 5 mm/min and 15 mm/min loading speed). The results indicate that the energy absorption (EA) property of the auxetic composite is highly influenced by the auxeticity of the knitted tubular fabric.

Analysis and Application of the Impact Absorption Behavior of the Composite Tube

2013 ◽  
Vol 470 ◽  
pp. 510-515
Author(s):  
Zi Peng Zhang ◽  
Gui Fan Zhao ◽  
Tso Liang Teng ◽  
Yang Wang
Keyword(s):  
Energy Absorption ◽  
Absorption Characteristic ◽  
Beam Model ◽  
Velocity Signal ◽  
Composite Tube ◽  
Acceleration Signal ◽  
Displacement Signal ◽  
Drop Weight Tear Test ◽  
Composite Energy ◽  
The Impact

Composite tube is one new kind of multi-material shell structures. It has both of metal and composite energy absorption advantage. In order to find the energy absorption characteristic of composite tube and put it into use, the Drop-Weight Tear Test (DWTT) was carried out. The LD2Y aluminum was chosen as the inner metal material which was wrapped fiberglass epoxy composite outside. During the test, the displacement signal and velocity signal, acceleration signal were got by piezoelectric acceleration transducer. Furthermore, the DWTT test of the composite tube was simulated in LS-DYNA, and proved the validity of the model by comparing the simulation results with the experiment results. We established the vehicle front longitudinal beam model with the material type of the composite tube, and carried out the simulations of whole car collisions in LS-DYNA according to FMVSS 208. Through the analysis of occupant head injury got from the simulations, we got the result that using the composite tube material could not only elevate the cars safety but also reduce front longitudinal beam weight effectively.

Energy Absorption Optimization of GFRP Laminate by Considering Inner-Lamina Damage Model With Parameter Identification

2016 ◽  
Author(s):  
Bowen Zhan ◽  
Lingyu Sun ◽  
Bincheng Huang ◽  
Le Shen
Keyword(s):  
Energy Absorption ◽  
Damage Model ◽  
High Energy ◽  
Progressive Damage ◽  
Simulation Accuracy ◽  
Composite Tube ◽  
Manufacture Process ◽  
Design Variables ◽  
High Energy Absorption ◽  
Progressive Damage Model

In order to improve the simulation accuracy of composite tube crush by finite element method, a nonlinear progressive damage model predicting the progressive inner-lamina damage of laminates is implemented. Each element of FEM is defined by the model. All parameters in this model were identified according to the published test data. The longitudinal crush was simulated by the solver of ABAQUS /explicit using the nonlinear progressive model. The result shows that the failure form pattern, peak force and energy absorption fit well with the published experimental ones. The robust optimization based on Six sigma technology and probability distribution of design variables is carried out to obtain an improved energy absorption property instead of deterministic optimization. This method can obtain an optimal composite tube with stable high energy absorption capability in a practical manufacture process.

Analysis of Energy Absorption on Pultruded Composite Tube under Oblique Loading

2011 ◽  
Vol 471-472 ◽  
pp. 215-220 ◽  
Author(s):  
Abu Bakar Sulong ◽  
Abdullah Atiq Ariffin ◽  
Jaafar Sahari ◽  
Hendra Suherman
Keyword(s):  
Energy Absorption ◽  
Wall Thickness ◽  
Impact Energy ◽  
Compression Moulding ◽  
Composite Tubes ◽  
Trigger Mechanism ◽  
Composite Tube ◽  
Automotive Structures ◽  
Oblique Loading ◽  
Force Displacement

The capability of structures to absorb as much amount energy, particularly in automotive structures to reduce the damages due to impact energy during collision attract attention of many reserachers. During the actual collision, the crash box is not only experienced axially crash, but also in oblique crash. In this study, an experiment was carried out to study the crashworthiness parameters and behaviour of pultruded fibre E-glass/polyester pultruded composite tubes under oblique loading. Quasi-static loadings were applied axially and oblique on the pultruded composite to investigate the response of force-displacement during progressive collapses. The pultruded wall thickness of 6 mm tubes were used and four oblique angles of 0˚, 5˚, 10˚ and 15˚ were selected to study their effect on crushing behaviours and collapse modes using compression moulding. All specimens were chamfer 45˚ on top end for purpose to work as a collapse trigger mechanism. The results showed that the energy absorption of the structures increasing with decrease of the loading angle.

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