Biaxial strength determination of woven fabric composite for airship structural envelope based on novel specimens

Shi, Taibai; Chen, Wujun; Gao, Chengjun; Hu, Jianhui; Zhao, Bing; Wang, Pingan; Wang, Mei

doi:10.1016/j.compstruct.2017.10.067

Cited by 30 publications

(10 citation statements)

References 11 publications

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“…1. Specimens for biaxial loadings: (a) tubular specimen subjected combined tension and torsion [6], (b) typical cruciform specimen with four actuators under biaxial tension-tension [7] and a modified Arcan specimen [26]. role of connecting gripping jaws and Arcan specimen without tightened.…”

Section: The Modified Arcan Apparatus For Biaxial Tension(compression...mentioning

confidence: 99%

“…Internal multiaxiality achieved with off-axis specimens under uniaxial tension/compression loading were experimentally investigated [5]. Tubular specimens [6] are capable to subject combined tension/compression, internal pressure and/or torsional loading while cruciform specimens [7] can subject biaxial tension-tension, tension-compression and compression-compression loading. The pressure vessels form of tubular specimens cannot represent typical laminate planar structures as they are manufactured by filament winding yet the planar specimens are prepared in another different processes.…”

Section: Introductionmentioning

confidence: 99%

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Development of Modified Arcan Fixture for biaxial loading response of fiber-reinforced composites

2019

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Section: The Modified Arcan Apparatus For Biaxial Tension(compression...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of Modified Arcan Fixture for biaxial loading response of fiber-reinforced composites

2019

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“…In the paper [17], the authors stated that, although the uniaxial strength was studied extensively, it cannot properly characterize the real strength of the woven fabric composite due to the normal biaxial tensile state in operation service. They found that the biaxial strength equals the lower uniaxial strength multiplied by an amplification factor of 1.1-1.3 under a 1:1 stress ratio.…”

Section: Introductionmentioning

confidence: 99%

Biaxial Cyclic Loading of Woven Fabrics

Brnada

Kovačević

Šabarić

et al. 2021

TLR

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For the purpose of this paper, investigations were carried out on specifically designed fabrics with different structural parameters. The biaxial cyclic loading of fabrics and its consequences were investigated. The weave structures with the smallest weave units (plain weave, basket weave 2/2, rib weave 1/1 (2+2) and rib weave 2/2 (1+1) with the same warp and weft density (24 ends/cm and 24 picks/cm) were selected. Biaxial cyclic loadings of fabrics were performed on a newly developed patented device. The influence of the low level of cyclic loadings of fabrics on the change of tensile properties in warp and weft direction was investigated. The results showed that the low level of biaxial cyclic loading can lead to a permanent linear deformation of fabrics. Despite the fact that the forces that cyclically strain the fabric in two directions amount to 10% of the breaking elongation, after a certain number of cycles there is an irreversible deformation and reduction of breaking forces, but sometimes they can result in an increase in breaking forces. It was found that the tensile elongation of fabrics is affected both by thread crimping and by the structural properties of fabrics resulting from changes in the weave.

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“…The new method was used to design uniformly thick biaxial tensile specimens of flat sheet metal and the design size range of the specimens was also given. Shi et al [20] reported a new specimen design and test method for biaxial tensile strength. The biaxial tensile strength and uniaxial tensile strength were also compared and analyzed.…”

Section: Introductionmentioning

confidence: 99%

Influence of Strengthening Material Behavior and Geometry Parameters on Mechanical Behavior of Biaxial Cruciform Specimen for Envelope Material

Xiao

et al. 2019

Materials

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The stratospheric airship envelope material is operated in biaxial stress, so it is necessary to study the in-plane biaxial tensile strength. In this paper, a theoretical model is developed to evaluate the mechanical properties of in-plane biaxial specimens. Being applied to the finite element analysis, the theoretical model is employed to evaluate the influence of strengthening material behavior (E*) and geometry parameters on the mechanical behavior in the central. The follows results are drawn: (i) smaller the length of the central region (Lcen), E* and larger the central region corner radius (r) contribute to smaller coefficient of variation (CV); (ii) smaller Lcen and larger E* contribute to smaller stress concentration factor (k), k in the limit state of r is larger than that in other conditions. (iii) The CV and k under stress ratio of 1:1 are smaller than those under other stress ratios. The study can provide a useful reference for the design of biaxial specimens.

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Biaxial strength determination of woven fabric composite for airship structural envelope based on novel specimens

Cited by 30 publications

References 11 publications

Development of Modified Arcan Fixture for biaxial loading response of fiber-reinforced composites

Development of Modified Arcan Fixture for biaxial loading response of fiber-reinforced composites

Biaxial Cyclic Loading of Woven Fabrics

Influence of Strengthening Material Behavior and Geometry Parameters on Mechanical Behavior of Biaxial Cruciform Specimen for Envelope Material

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