Academic literature on the topic 'Uniaxial and Biaxial Tests'

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Journal articles on the topic "Uniaxial and Biaxial Tests"

1

Chen, Yonglin, Shuai Li, and Gongyi Fu. "Tear strength of a laminated fabric for stratospheric airship under uniaxial and biaxial tests." Journal of Engineered Fibers and Fabrics 16 (January 2021): 155892502110018. http://dx.doi.org/10.1177/15589250211001822.

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Envelopes are main structures of stratospheric airships. They are usually made of laminated fabrics and prone to tearing, so it is significant to study their tear strengths. This paper aims to investigate the tear strength of an envelope for stratospheric airships by uniaxial and biaxial tear tests. Three uniaxial tear specimens and 15 biaxial tear specimens under five different stress ratios (warp stress vs weft stress) were tested, and their tear strengths were measured. Two-dimensional digital speckle correlation method was used to obtain specimens’ strain contours. The test results show th
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Luo, Hua An, Hua Ming Wang, Jian Ying Zhu, and You Peng You. "Characterization of Hyperelastic Dielectric Elastomer Based on Biaxial Tensile Bench." Advanced Materials Research 97-101 (March 2010): 884–88. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.884.

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Usually model parameters from uniaxial experiments are not suitable for dielectric elastomer under biaxial loading condition. To characterize the mechanical behavior of dielectric elastomer, a biaxial tensile bench is established, on which uniaxial tests can be performed too. On the basis of the analysis of viscous effect of elastomer, experimental condition for data acquirement is determined. Then equi-biaxial and uniaxial experimental data are obtained to fit three constitutive models, i.e. Mooney-Rivlin, Yeoh and Ogden model. Also, least square minimization method is used to obtained model
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Udomraksasakul, Chalida, Thanasan Intarakumthornchai, and Yingyot Aue-u-Lan. "Investigation of Anisotropy Effect on the Material Properties Obtained from Biaxial Tests." Key Engineering Materials 856 (August 2020): 128–34. http://dx.doi.org/10.4028/www.scientific.net/kem.856.128.

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Hydraulic bulge test or biaxial test is a well-known mechanical test used to determine a flow stress of material because of the large level of effective strains and not interfered by the necking unlike in uniaxial tensile test. However, the flow stress obtained is influenced by the anisotropy effect. That flow stress needs to be corrected by the anisotropic values (r-values) obtained from the uniaxial tensile test which limited by the necking. Therefore, to obtain the accurate flow stress the r-values should be determined directly from the biaxial test. The elliptical tests with ratio of 2 (th
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Spišák, Emil, Janka Majerníková, Emília Duľová Spišáková, and Ľuboš Kaščák. "Analysis of Plastic Deformation of Double Reduced Sheets." Acta Mechanica et Automatica 10, no. 4 (2016): 271–74. http://dx.doi.org/10.1515/ama-2016-0041.

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Abstract This paper discusses the causes and the effects of plastic deformation of double reduced sheets under uniaxial and biaxial loading. It focuses on the specific inhomogeneity and localization of plastic deformation, which is analysed in detail. The uniaxial and the hydraulic biaxial tensile tests were used for material testing and the results were compared and evaluated. The final part of the paper deals with the microstructure of material deformations.
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Ambroziak, Andrzej. "Mechanical properties of PVDF-coated fabric under tensile tests." Journal of Polymer Engineering 35, no. 4 (2015): 377–90. http://dx.doi.org/10.1515/polyeng-2014-0087.

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Abstract This article describes the laboratory tests necessary to identify the mechanical properties of the polyvinylidene fluoride (PVDF)-coated fabrics named Precontraint 1202S and Precontraint 1302S. First, a short survey of the literature concerning the description of coated woven fabrics is presented. Second, the material parameters for PVDF-coated fabrics are specified on the basis of biaxial tensile tests. A comparison of the 1:1 biaxial and the uniaxial tensile tests results is also given. Additionally, biaxial cyclic tests were performed to observe the change of immediate mechanical p
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Rassoli, Aisa, Nasser Fatouraee, and Mohammad Shafigh. "UNIAXIAL AND BIAXIAL MECHANICAL PROPERTIES OF THE HUMAN SAPHENOUS VEIN." Biomedical Engineering: Applications, Basis and Communications 27, no. 05 (2015): 1550050. http://dx.doi.org/10.4015/s1016237215500507.

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Cardiovascular diseases are one of the major causes of death in the world and are closely related to blood dynamics and wall mechanical properties of vessels. This makes the study of mechanical properties of arteries and veins essential. In this regard, study on common vessels used in bypass grafting operations is of special importance due to the frequency of this surgery. Human saphenous vein is one of the vessels used for bypass surgeries. The objective of the present study is to characterize the behavior of human saphenous vein using uniaxial and biaxial planar tests. Forty human saphenous
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7

Yao, Jia Wei, Yu Pu Song, Li Kun Qin, and Ling Xia Gao. "Mechanical Properties and Failure Criteria of Concrete under Biaxial Tension and Compression." Advanced Materials Research 261-263 (May 2011): 252–55. http://dx.doi.org/10.4028/www.scientific.net/amr.261-263.252.

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Utilizing the large static-dynamic triaxial test system, 7 proportional loading biaxial tensile and compressive tests of concrete were conducted. The proportional loading paths are 0 (uniaxial compression), -0.05, -0.1, -0.15, -0.2, -0.25 and ∞ (uniaxial tension). Compressive and tensile strength were measured as well as the strains at two loading directions. Considering the ratio to tension and compression, failure criteria of ordinary concrete under biaxial tension and compression was established, which has a good agreement with test value.
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8

Williams, Paul T., B. Richard Bass, and Wallace J. McAfee. "Shallow Flaws Under Biaxial Loading Conditions—Part II: Application of a Weibull Stress Analysis of the Cruciform Bend Specimen Using a Hydrostatic Stress Criterion1." Journal of Pressure Vessel Technology 123, no. 1 (2000): 25–31. http://dx.doi.org/10.1115/1.1344235.

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Cruciform beam fracture mechanics specimens have been developed in the Heavy Section Steel Technology Program at Oak Ridge National Laboratory to introduce a prototypic, far-field, out-of-plane biaxial bending stress component in the test section that approximates the nonlinear biaxial stresses resulting from pressurized-thermal-shock or pressure-temperature loading of a nuclear reactor pressure vessel (RPV). Matrices of cruciform beam tests were developed to investigate and quantify the effects of temperature, biaxial loading, and specimen size on fracture initiation toughness of two-dimensio
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Tsai, Heng Kuang, Yi Wei Lin, Fuh Kuo Chen, and Shi Wei Wang. "Design of an Experimental Device for Biaxial Tension Tests Used in a Uniaxial Test Machine." Key Engineering Materials 554-557 (June 2013): 174–81. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.174.

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In the present study, a set of novel clamping apparatus that could deliver biaxial stretching motions with the use of a uniaxial tensile testing machine was designed and manufactured. The conversion of uniaxial motion into biaxial stretching motions is achieved by a sliding mechanism that consists of two blocks sliding in two mutually perpendicular grooves, respectively. During the biaxial tension test, a cross-shaped specimen sitting in the grooves are stretched by the two blocks driven by a pulling rod. The different stress ratios could be obtained by adjusting the groove surface shape and t
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10

Mokhtarishirazabad, Mehdi, Pablo Lopez-Crespo, and Belen Moreno. "The Effect of Overload on Crack Growth Behaviour in Biaxial Fatigue." MATEC Web of Conferences 165 (2018): 22034. http://dx.doi.org/10.1051/matecconf/201816522034.

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This paper focus on the study of biaxial fatigue cracks based on a methodology that enables evaluation of the overload effect in fatigue. The methodology is based on the experimental evaluation via full-field technique of digital image correlation of the effective stress intensity factor and the crack opening displacement (COD). The tests were performed on cylindrical specimens made of low carbon steel subjected to tension-tension and a combination of tension and torsion loads. The experimental data was used to compare the crack growth behaviour with an overload cycle under uniaxial and biaxia
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