Degradation of torsional behaviors of 3-D braided thin-walled tubes after atmospheric thermal ageing

Xun, Limeng; Wu, Yuanyuan; Huang, Shaobo; Sun, Bin; Hu, Meiqi

doi:10.1016/j.tws.2021.108555

Cited by 12 publications

(3 citation statements)

References 42 publications

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“…For the composite tube, there was no ready-made standard fixture suitable for the torsional test, different auxiliary tools had made according to respective specimens [21][22][23][24][25][26][34][35][36][37][38][39]. Combined with the test conditions, the assembly design of the clamping area at both ends of the SMAHC tube was carried out, and a unique test device was developed.…”

Section: Experimental Devicementioning

confidence: 99%

Torsional actuation and vari-stiffness characteristics of SMA/basalt hybrid braided composite tubes

Ke,

Zhang,

et al. 2024

Smart Mater. Struct.

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Shape memory alloy hybrid composite (SMAHC) tubes have the potential to actively control the torsional stiffness of structures. In this work, SMA wires orthogonally braided with basalt fiber were heated by electricity to generate the torsional torque of the SMAHC tube, and then the torsional stiffness of the tube was measured. The macroscopic finite element model of the SMAHC tube was established to assist in the analysis of the torsional stiffness variation before and after heating. According to the experimental results, the actuating torsional ability was affected by the phase transformation recovery force of SMA. The active control of torsional stiffness depends on the change of SMA modulus, the magnitude and direction of SMA wires' recovery force, and the thermodynamic properties of matrix at different temperatures. Then an evaluation model for the torsional stiffness control effect was proposed. These research results can be used for the adaptive control of the stiffness and vibration characteristics of rotating composite structures, and provide a novel and effective method for the control of structural torsional characteristics with lightweight effects.

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Section: Experimental Devicementioning

confidence: 99%

Torsional actuation and vari-stiffness characteristics of SMA/basalt hybrid braided composite tubes

Ke,

Zhang,

et al. 2024

Smart Mater. Struct.

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“…Limeng et al 13 studied the performance of composite shafts made of carbon/epoxy fibers exposed to thermal and corrosive environments. The results of this research indicated that temperature has a higher influence on the reduction of the torsional modulus of elasticity and strength compared to corrosion.…”

Section: Introductionmentioning

confidence: 99%

In-plane shear damages consideration of hoop wound composite cylinders using acoustic emission method

Farajpour,

Najafabadi

2024

Journal of Composite Materials

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The objective of this study was to examine the in-plane shear properties of filament-wound composite cylinders and assess the associated damage mechanisms using acoustic emission techniques. Two distinct composite materials, namely carbon/epoxy and glass epoxy, were manufactured for this purpose. The cylinders were subjected to torsion load conditions in accordance with ASTM D5448. Throughout the testing process, various parameters such as torque, angle of torsion, and strain were meticulously recorded. Additionally, the acoustic emission sensors were utilized to capture signals indicating the occurrence of damages. The findings of the study indicate that the in-plane shear strength and shear modulus of the carbon/epoxy specimens surpass those of the glass/epoxy counterparts. The results from acoustic emission testing indicated that in the CFRP specimens, there were no instances of fiber/matrix debonding. Instead, the main mode of damage observed was fiber breakage, accounting for approximately 71% of the total damage detected. On the other hand, in the GFRP specimens, the primary damage mechanism was found to be fiber/matrix debonding, making up approximately 50% of the overall damage recorded.

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“…Establishing fiber bundle model is an effective method to study bundle cross-sectional performances in transverse compression. Although circular, 14 octagon, 15 hexagon, 16 etc. have been assumed as the cross-sectional shape of yarns, the fixed geometry could not reflect the cross-sectional responses.…”

Section: Introductionmentioning

confidence: 99%

A new algorithm to generate randomly distributed fibers within the fiber bundle and numerical investigation of bundle cross-sectional performances in transverse compression

Quan

2023

Journal of Industrial Textiles

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Transverse compression-induced cross-sectional deformation of parallel fiber bundles usually acts as the fundamental structural mechanism for bundle-based materials. In the present article, a meso-scale insight into the cross-sectional responses of parallel fiber bundle under transverse compression was made. A novel algorithm was proposed to design and model the bundle cross-sectional meso-structure with randomly distributed fibers. The transverse compression induced bundle cross-sectional responses (including cross-sectional perimeter, area and filling factor) were simulated and analyzed based on the finite element method, and were verified experimentally for the bundle with 91 fibers. Results showed that the load began to increase significantly when the perimeter growth rate of the bundle cross-section was larger than 0.8, and the load gradually reached the peak value when the perimeter growth rate was about 1.5. The Mises stress distribution of the bundle gradually neared to the Gaussian distribution when load sharply increased. The results presented in the current paper can provide a novel method to generate randomly distributed fibers and a theoretical guidance for the mechanical properties prediction of bundle-based materials by analyzing the bundle cross-sectional deformation in transverse compression.

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Degradation of torsional behaviors of 3-D braided thin-walled tubes after atmospheric thermal ageing

Cited by 12 publications

References 42 publications

Torsional actuation and vari-stiffness characteristics of SMA/basalt hybrid braided composite tubes

Torsional actuation and vari-stiffness characteristics of SMA/basalt hybrid braided composite tubes

In-plane shear damages consideration of hoop wound composite cylinders using acoustic emission method

A new algorithm to generate randomly distributed fibers within the fiber bundle and numerical investigation of bundle cross-sectional performances in transverse compression

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