Search Results - "Akiniwa, Y"

Fatigue crack propagation behaviour derived from S-N data in very high cycle regime by TANAKA, K, AKINIWA, Y

“…ABSTRACT The crack propagation law was derived from the S–N data in the very high cycle fatigue of a bearing steel. The propagation rate, da/dN (m/cycle), of…”
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Fatigue strength of spring steel under axial and torsional loading in the very high cycle regime by Akiniwa, Y., Stanzl-Tschegg, S., Mayer, H., Wakita, M., Tanaka, K.

“…The fatigue strength of an oil-tempered Si–Cr steel for valve springs (JIS G3561, SWOSC-V) was investigated. Smooth specimens without residual surface stresses…”
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Notch effect on fatigue strength reduction of bearing steel in the very high cycle regime by Akiniwa, Yoshiaki, Miyamoto, Nobuyuki, Tsuru, Hirotaka, Tanaka, Keisuke

“…Ultrasonic fatigue tests were conducted with smooth and notched specimens of a bearing steel of two batches (JIS SUJ2-A and SUJ2-B). The S– N curves obtained…”
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The cyclic R-curve method for predicting fatigue crack growth threshold based on modified strip-yield model of plasticity-induced crack closure under fully reversed loading by Tanaka, K., Akiniwa, Y.

“…•A strip-yield model is applied to examine the buildup of crack closure for two types of precracks are examined: open precracks which remain open even under…”
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Determination of cyclic R-curve for predicting short fatigue crack growth by Tanaka, K., Akiniwa, Y.

“…•The effects of precrack length and material yield stress on the cyclic R curve are clarified, and fitting functions are proposed for R-curve.•Proper…”
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Fatigue thresholds of precracked specimens predicted by modified strip-yield model for plasticity-induced crack closure by Tanaka, K., Akiniwa, Y.

“…•The effects of precrack lengths and material yield stress on crack closure development are examined.•A new master curve equation is proposed for the cyclic…”
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Fatigue thresholds of holed components under in-phase and out-of-phase torsional and axial loadings by TANAKA, K., MORITA, K., AKINIWA, Y.

“…ABSTRACT The resistance‐curve (R‐curve) method was applied to the prediction of the fatigue thresholds of notched components under in‐phase and out‐of‐phase…”
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Fatigue thresholds of holed components under in-phase and out-of-phase torsional and axial loadings by Tanaka, K., Morita, K., Akiniwa, Y.

“…ABSTRACT The resistance‐curve (R‐curve) method was applied to the prediction of the fatigue thresholds of notched components under in‐phase and out‐of‐phase…”
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Evaluation of fibre bridging stress of short fatigue cracks in SCS-6/Ti-15-3 composite by AKINIWA, Y., FUJII, T., KIMURA, H., TANAKA, K.

“…ABSTRACT Single‐edge notched specimens of a unidirectional SiC long fibre reinforced titanium alloy, were fatigued under four point bending. The propagation…”
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Fatigue crack propagation from a precrack under combined torsional and axial loading by TANAKA, K., AKINIWA, Y., KATO, T., MIKURIYA, T.

“…ABSTRACT Fatigue tests of crack propagation from a precrack in thin‐walled tubular specimens made of a medium‐carbon steel were performed under cyclic torsion…”
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Microstructural effects on crack closure and propagation thresholds of small fatigue cracks by Akiniwa, Y., Tanaka, K., Kimura, H.

“…The crack closure behaviour of microstructurally small fatigue cracks was numerically simulated by combining the crack‐tip slip band model with the…”
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High-temperature and high-pressure in situ SCC device for synchrotron radiation diffraction experiments and application using an austenitic stainless steel by Yamamoto, A, Nakahigashi, S, Terasawa, M, Mitamura, T, Akiniwa, Y, Yamada, T, Liu, L, Shobu, T, Tsubakino, H

“…Suppressing the stress corrosion cracking (SCC) by reducing the carbon content in austenitic stainless steels is apparently not effective on core shrouds used…”
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Crack propagation in notched specimens of porous silicon carbide under cyclic loading by TANAKA, K., AKINIWA, Y., KITA, Y., SEGAWA, M.

“…ABSTRACT Notched specimens of porous silicon carbide with porosity 37% were fatigued under four‐point bending at frequencies of 30 and 0.3 Hz. The fatigue life…”
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ESTIMATION OF TORSIONAL FATIGUE STRENGTH OF MEDIUM CARBON STEEL BARS WITH A CIRCUMFERENTIAL CRACK BY THE CYCLIC RESISTANCE-CURVE METHOD by Yu, HC, Tanaka, K, Akiniwa, Y

“…Near‐threshold fatigue crack propagation tests were performed on circumferentially precracked round bars of a medium carbon steel under torsional loading. The…”
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PREDICTION OF THE FATIGUE LIMIT OF CRACKED SPECIMENS BASED ON THE CYCLIC R-CURVE METHOD by Akiniwa, Y., Zhang, L. M., Tanaka, K.

“…— The propagation behaviour of fatigue cracks emanating from pre‐cracks was numerically simulated to evaluate the development of crack closure with crack…”
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Fatigue crack propagation from a hole in tubular specimens under axial and torsional loading by Tanaka, Keisuke, Takahash, Hiroki, Akiniwa, Yoshiaki

“…Fatigue tests of crack propagation from a circular notch in thin-walled tubular specimens made of low-carbon steel were performed under cyclic uniaxial…”
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In-situ measurements of internal stresses in copper thin films during thermal cycling using synchrotron X-rays by Tanaka, K., Akiniwa, Y.

“…Using synchrotron X-rays at SPring-8, the internal stress in Cu thin films was measured in vacuum at various temperatures during heating and cooling cycle…”
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Analysis of elastic properties of textured thin films by Akiniwa, Y., Machiya, S., Serizawa, K., Tanaka, K.

“…Finite element models of polycrystalline thin films were constructed based on the Monte Carlo method. The models consisted of columnar aggregates of cubic…”
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Evaluation of fibre bridging stress of short fatigue cracks in SCS-6/Ti-15-3 composite: Special issue on residual stress in fatigue & fracture by AKINIWA, Y, FUJII, T, KIMURA, H, TANAKA, K

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Characterization of strain in cubic thin film with 〈hkl〉 fiber texture in anisotropic stress state by Yokoyama, R., Harada, J., Akiniwa, Y.

“…Abstract only…”
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