Tensile Behavior and Damage/Acoustic Emission Characteristics of Woven Glass Fiber Reinforced/Epoxy Composite Laminates at Cryogenic Temperatures

Shindo, Yasuhide; Narita, Fumio; Horiguchi, Katsumi; Takano, S.; Takeda, Tomo; Sanada, Kazuaki

doi:10.1063/1.2192358

Cited by 6 publications

(5 citation statements)

References 2 publications

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“…Table 3 presents the numerically determined uniform stresses σ 0 at room temperature, 77 K, and 4 K. The uniform stresses σ 0 in the table are averages of three values at each temperature, and the values in parentheses are the standard deviations. For comparison, the ultimate tensile strengths σ ult from the tensile tests on the unnotched G-11 specimens [Shindo et al 2006] are given in the table. The numerically determined uniform stresses σ 0 are in good agreement with the σ ult values.…”

Section: Resultsmentioning

confidence: 99%

“…For example, Kumagai et al [2004] experimentally and numerically examined the effects of specimen geometry and gripping method on the tensile properties of woven GFRP composite laminates having high glass content at cryogenic temperatures. Shindo et al [2006] investigated the cryogenic mechanical response of woven GFRP composite specimens under tension, and discussed the influence of specimen geometry and size on the tensile properties of the composites.…”

Section: Introductionmentioning

confidence: 99%

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Numerical and experimental evaluation of cryogenic tensile strength of woven fabric-reinforced glass/epoxy composites using open hole specimens

Shindo

Watanabe

Takeda

et al. 2011

J. Mech. Mater. Struct.

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A numerical and experimental evaluation of the tensile strength properties of woven glass fiber-reinforced polymer composite laminates at cryogenic temperatures was conducted by means of open hole specimens. Tensile tests were performed on specimens with a circular hole at room temperature, at 77 K, and at 4 K. The length of the hole edge damage zone corresponding to specimen failure was determined by microscopic examination of the fracture surfaces. A method based on finite element analysis was developed for estimating the cryogenic tensile strength of the unnotched woven laminates using the experimentally determined failure load and damage zone length. The results suggest that the tensile strength of woven composite laminates at cryogenic temperatures can be determined effectively by this approach.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical and experimental evaluation of cryogenic tensile strength of woven fabric-reinforced glass/epoxy composites using open hole specimens

Shindo

Watanabe

Takeda

et al. 2011

J. Mech. Mater. Struct.

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“…Take for an instance the work of Kumagai et al [12], they performed experiment and numerically tested the effect of specimen geometry and holding pattern on the tensile properties of woven GFRP laminates with high glass make-up at low temperatures. Shindo et al [15] also examined the low temperature mechanical reaction of woven GFRP laminate specimens and analyzed the effect of specimen shape and size on the material behaviours under tension. Hongshuai et al [16] conducted experimental and numerical investigation in the macroscopic mechanical behaviour of shape memory Alloy Hybrid Composites (SMAHCs) with consideration of weak interface effect and damage evaluation.…”

Section: Introductionmentioning

confidence: 99%

“…Shindo et al. [ 15 ] also examined the low temperature mechanical reaction of woven GFRP laminate specimens and analyzed the effect of specimen shape and size on the material behaviours under tension. Hongshuai et al.…”

Section: Introductionmentioning

confidence: 99%

Comparative studies of experimental and numerical evaluation of tensile properties of Glass Fibre Reinforced Polyester (GFRP) matrix

Ndukwe

Ezurike²,

Okpala

2021

Heliyon

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The investigation and comparative analysis of Chopped Strand Mat Glass Fibre Reinforced Polyester (CSMGFRP) composite laminates was conducted. The laminate samples for the experiment were first exposed to diverse X-rays intensity rates at 6 mAs interval before test under cryogenic temperature. The generated values for tensile properties like young's modulus, strength, force, energy and elongation values were all measured and noted. The tensile modulus presented 43.8% decrease at the first 12 mAs exposure before it started increasing in the order of 30.3%, 6.3% and 12.3% respectively. Also, a science laboratory (SciLab) numerical evaluation of the material's tensile young's modulus was carried out and the obtained values compared with the experimental result to ascertain the level of relationship between the two approaches. It was observed that all the tested tensile properties were not consistent in the line of material strength depreciation values, apart from tensile young's modulus. The latter is consistent, but when considered with numerical model; their values became inconsistent like the former. However, when Analysis of Variance (ANOVA) for both approaches (experimental and SciLab numerical evaluations) were checked using t-test for pair comparisons, the data sets produced a computed t-value of 4.51. The obtained t-value and the critical t-value of 2.57 for 5% level of significance and 5-degree of freedom were compared, and it was noticed that the obtained t-value was higher than the critical t-value which indicated that the result was significant at the 5% level. Thus the null hypothesis is rejected which suggests that both approaches were relevant to tensile properties investigation at cryogenic temperature.

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“…In the work of Takeda et al, 5 the cryogenic deformation and progressive damage behavior of woven GFRP laminates under tension was investigated by performing the tensile test and the numerical analysis. Shindo et al 6 conducted the cryogenic tensile tests on various specimens and discussed the suitability of the specimens for the tensile property determination. For the fatigue loading case, Kumagai et al 7 evaluated stiffness degradation and residual strength of woven GFRP laminates under cyclic loading at cryogenic temperatures.…”

Section: Introductionmentioning

confidence: 99%

Strength characterization of woven glass/epoxy composites under tensile fatigue loading at cryogenic temperatures using open hole specimens

Shindo

Takeda

Narita

et al. 2012

Journal of Composite Materials

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In this article, we investigate the strength characteristics of woven glass fiber reinforced polymer composite laminates subjected to tensile fatigue loading at cryogenic temperatures using the open hole specimens. Tension–tension fatigue tests were conducted on the open hole specimens of the woven glass fiber reinforced polymer laminates at room temperature, liquid nitrogen temperature (77 K) and liquid helium temperature (4 K), and microscopic observations of damage around the hole were made on failed specimens. A numerical procedure based on the finite element method was then applied to evaluate the fatigue strength of the unnotched woven glass fiber reinforced polymer laminates using the experimentally applied load and the length of the hole edge damage zone. The obtained results were compared with the existing experimental data from the unnotched specimens. It was demonstrated that the presented combined numerical–experimental method was effective for the determination of the fatigue properties of the woven glass fiber reinforced polymer laminates at cryogenic temperatures.

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Tensile Behavior and Damage/Acoustic Emission Characteristics of Woven Glass Fiber Reinforced/Epoxy Composite Laminates at Cryogenic Temperatures

Cited by 6 publications

References 2 publications

Numerical and experimental evaluation of cryogenic tensile strength of woven fabric-reinforced glass/epoxy composites using open hole specimens

Numerical and experimental evaluation of cryogenic tensile strength of woven fabric-reinforced glass/epoxy composites using open hole specimens

Comparative studies of experimental and numerical evaluation of tensile properties of Glass Fibre Reinforced Polyester (GFRP) matrix

Strength characterization of woven glass/epoxy composites under tensile fatigue loading at cryogenic temperatures using open hole specimens

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