Monte Carlo-shear lag simulation for fracture behavior of Bi2223 superconducting monofilament and its influence on critical current

Rokkakku, Hirosuke; Morishita, Kohei; Doko, D.; Ishida, T.; Ochiai, Shojiro; Okuda, Hiroshi; Osamura, Kōzō

doi:10.1016/j.physc.2006.05.018

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…It has been shown in our preceding work [19,20] that the Bi2223 filaments are not fractured upon cracking. The Bi2223 filaments are composed of many thin plate-like grains.…”

Section: Procedures and Input Values For The Calculation Of Voltage G...mentioning

confidence: 81%

“…As stated above, in the actual cracking process of the Bi2223 filament, the transverse (perpendicular to the tensile axis) and longitudinal (parallel to the tensile axis) damages take place alternatively, resulting in a zig-zag pattern [8,19,20]. In the present work, to simplify the current path and its distribution in the composite tape, the Bi2223 filament and Ag layers are regarded as plate shape, namely a series of multiplatelet grains of Bi2223 filament and Ag one after the other.…”

Section: Procedures and Input Values For The Calculation Of Voltage G...mentioning

confidence: 98%

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Change of theV–Icurve and critical current with applied tensile strain due to cracking of filaments in Bi2223 composite tape

Shin

Ochiai

Okuda

et al. 2008

Supercond. Sci. Technol.

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The critical current at 77 K of multifilamentary Bi2223 composite tape was studied under applied tensile strain experimentally and analytically. Beyond the irreversible strain, the critical currents (I C ) decreased significantly with increasing applied tensile strain (ε c ), due to the enhanced cracking of the Bi2223 filaments. The voltage generation in the voltage-current relation was calculated by the current share model in which the transport current is shared by the Bi2223 filament and Ag near the cracked portion. Then the critical current was estimated with a 1 μV cm −1 criterion. By the application of the current share model to the experimental result, the effective crack length responsible for the reduction in critical current was estimated, with which the change of critical current could be described satisfactorily as a function of applied strain.

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“…It has been shown in our preceding work [19,20] that the Bi2223 filaments are not fractured upon cracking. The Bi2223 filaments are composed of many thin plate-like grains.…”

Section: Procedures and Input Values For The Calculation Of Voltage G...mentioning

confidence: 81%

Section: Procedures and Input Values For The Calculation Of Voltage G...mentioning

confidence: 98%

Change of theV–Icurve and critical current with applied tensile strain due to cracking of filaments in Bi2223 composite tape

Shin

Ochiai

Okuda

et al. 2008

Supercond. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Thus, it is quite important to understand whether the above mentioned mechanism of reinforcement by lamination is effective even under fatigue loading. Since Bi2223 filaments are very brittle and composed of small platelets, the real fracture process can involve the accumulation of microscopic damage before the final fracture of filaments [12]. This suggests the possibility of damage growth under fatigue loading below the static irreversible strain level.…”

Section: Introductionmentioning

confidence: 99%

Effect of fatigue loading on critical current in stainless steel–laminated DI-BSCCO superconducting composite tape

Hojo

Osawa

Adachi

et al. 2010

Physica C: Superconductivity and its Applications

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Strength Evaluation of Unidirectional Composites Using Monte-Carlo Simulation

Wang

Tan

Liu

2014

AMM

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A statistics method was carried out to characterize the fatigue strength distribution of GF/PP composites. Based on the stress of yarn bundles, the Weibull distribution parameters were determined. Also, we had presented an expression of interfacial shear stress between yarn tows and matrix. A Monte-Carlo simulation with 2D shear-lag equation had been used to analyze the tensile strength and simulate the failure process of unidirectional stretch of composites. Good agreements were obtained between the predicted results and experimental data.

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Monte Carlo-shear lag simulation for fracture behavior of Bi2223 superconducting monofilament and its influence on critical current

Cited by 3 publications

References 9 publications

Change of theV–Icurve and critical current with applied tensile strain due to cracking of filaments in Bi2223 composite tape

Change of theV–Icurve and critical current with applied tensile strain due to cracking of filaments in Bi2223 composite tape

Effect of fatigue loading on critical current in stainless steel–laminated DI-BSCCO superconducting composite tape

Strength Evaluation of Unidirectional Composites Using Monte-Carlo Simulation

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