Mechanical properties of Precontraint 1202S coated fabric under biaxial tensile test with different load ratios

Ambroziak, Andrzej

doi:10.1016/j.conbuildmat.2015.01.074

Cited by 62 publications

(20 citation statements)

References 44 publications

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“…Until now, there are only a few of references about the mechanical properties of PVDF coated polyester with the Precontraint technology. Ambroziak carried out series of tests on the mechanical behaviors under different loading protocols, such as monotonous loading, cyclic loading, and others [5][6][7][8]. The main mechanical parameters including tensile strength, elastic modulus, and Poisson ratio are obtained.…”

Section: Introductionmentioning

confidence: 99%

Off-Axial Tensile Properties of Precontraint PVDF Coated Polyester Fabrics under Different Tensile Rates

Zhang

2016

Advances in Materials Science and Engineering

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Two types of Precontraint PVDF coated polyester are taken as the research objects. A series of uniaxial tensile tests were carried out to study the tensile performances of the specimens in eleven in-plane directions including 0°, 5°, 15°, 25°, 35°, 45°, 55°, 65°, 75°, 85°, and 90°, and six tensile rates (10 mm/min, 25 mm/min, 50 mm/min, 100 mm/min, 200 mm/min, and 500 mm/min) were also considered. The corresponding failure modes and fracture mechanisms were discussed, and the relationships between tensile strength and strain at break and tensile rate and off-axial angles were obtained. Results show that the Precontraint PVDF coated woven fabrics are typically anisotropic. With off-axial angle increasing, the tensile strength decreases while the strain at break increases. Three failure modes can be observed, including failure of yarns pulled out, yarns fracture, and mixture failure. With tensile rate increasing, the tensile strength increases slightly while the strain at break decreases. The tensile strength and strain at break show good linear relationship with tensile rate’s logarithm.

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Section: Introductionmentioning

confidence: 99%

Off-Axial Tensile Properties of Precontraint PVDF Coated Polyester Fabrics under Different Tensile Rates

Zhang

2016

Advances in Materials Science and Engineering

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“…It is with good pollution resistance and can be used for permanent structures. The Précontraint @ technology is used to obtain more consistent and more balanced warp and weft stiffness through the cloth by applying tension to warp and weft of a plain woven fabric [28][29][30]. Besides, it should be noticed that two types of Précontraint @ 1202 (S2 and Fluotop T2) are produced.…”

Section: Materials and Methodologymentioning

confidence: 99%

“…The difference between these fabrics is surface treatment on top (PVDF for S2 or high concentration PVDF for T2). Basic mechanical parameters for both fabrics specified by manufactures are identical [28,29].…”

Section: Materials and Methodologymentioning

confidence: 99%

Aging Properties of Polyvinylidenefluoride-Coated Polyesters Used in Tensioned Membrane Structure: Effect of Loading Protocol and Environment

Zhang

2017

Advances in Materials Science and Engineering

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This paper presents the degradation behaviors of polyvinylidenefluoride- (PVDF-) coated polyesters used in tensioned membrane structure by artificial accelerated tests, in which the effects of environment factors and loading conditions are studied. Results show that the degradation ratio of main mechanical parameters (tensile strength, tear strength, and elastic modulus) is related to the aging depth of substrate and coating. The degradation of weather resistance can be considered as the accumulation of environment and loads. The ultraviolet radiation and the temperature mainly affect the mechanical properties of yarns, while the preloading before aging tests can change the crimp degrees and decrease the coating thickness. The effect of loads should not be ignored in the weather resistance analysis of PVDF-coated polyesters. A simplified method composed of cyclic tests and stress-relaxation tests is suggested to study the long-term weather resistance of PVDF-coated polyesters. It can provide a theoretical reference for the proposal of resistance partial factor in the design of tensioned membrane structure.

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“…coverings during festivals or tents) and permanent (such as stadium roofs). Current research regarding fabric structures focuses largely on characterising the complex nonlinear material behaviour [1][2][3] and the testing methodologies used to determine the material properties [4][5][6][7]. Due to the material complexity and wide variety in computational modelling methodologies and results [8], as well as practical limitations, only few sources have compared computational results to full scale experimental verifications.…”

Section: Introductionmentioning

confidence: 99%

Integrated analysis of kinematic form active structures for architectural applications: Experimental verification

Craenenbroeck

Puystiens

Laêt

et al. 2016

Engineering Structures

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a b s t r a c tTechnical textiles used in lightweight tensile fabric structures are inherently highly flexible, which makes these materials very suited to, for instance, make lightweight adaptable façade or roof systems.Until now, however, kinematic fabric structures are mostly designed to transform between a prestressed, structural state and a compact state where the fabric becomes untensioned using fixed geometrically determined paths. The goal of this research is to design and validate the structural behaviour of a kinematic fabric structure which remains prestressed in all its possible geometric states by taking advantage of the out-of-plane flexibility of the material rather than the high stretchability.To make the design and the use of such a kinematic fabric structures possible, we investigated the material properties of a standard polyester-PVC fabric. Afterwards, we implemented these properties in a computational model and performed a parameter study to come to a conceptual design of a kinematic prestressed fabric structure where its geometry follows the reorientation of forces rather than restricting its movement to a geometrically determined path. Finally, the designed kinematic structure was built and tested as a prototype, comparing reaction forces and strains to the ones predicted in the computational model. This paper describes this experimental validation by comparing the experimentally obtained results to the values predicted in the computational simulations using a cable-net approximation and a linear elastic orthotropic material model.Although this comparison showed some deviations in the absolute values of the forces and strains, the general behaviour of the prototype was correctly predicted using a standard analysis method. The majority of the deviations could be contributed to the fact that the strains in the computational model do not take into account the compensation applied to the prototype and the high permanent straining of the boundary belts.The investigated prototype thus showed both the potential and the difficulties of using lightweight, highly flexible fabrics as structurally stable, kinematic elements.

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Mechanical properties of Precontraint 1202S coated fabric under biaxial tensile test with different load ratios

Cited by 62 publications

References 44 publications

Off-Axial Tensile Properties of Precontraint PVDF Coated Polyester Fabrics under Different Tensile Rates

Off-Axial Tensile Properties of Precontraint PVDF Coated Polyester Fabrics under Different Tensile Rates

Aging Properties of Polyvinylidenefluoride-Coated Polyesters Used in Tensioned Membrane Structure: Effect of Loading Protocol and Environment

Integrated analysis of kinematic form active structures for architectural applications: Experimental verification

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