Fatigue strength of spring steel with small scratches

Y. Nishimura; K. Yanase; Y. Ikeda; Y. Tanaka; N. Miyamoto; S. Miyakawa; M. Endo

doi:10.1111/ffe.12793

Fatigue strength of spring steel with small scratches

Y. Nishimura, K. Yanase, Y. Ikeda, Y. Tanaka, N. Miyamoto, S. Miyakawa, M. Endo

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

In compression coil springs subjected to cyclic load, fatigue cracks can sometimes initiate and propagate from scratch-like small defects produced during the manufacturing process and degrade the fatigue strength. In this study, torsional and rotating bending fatigue tests were conducted to examine the fatigue behavior of a high-strength spring steel (JIS G 3561, SWOSC-V) in the presence of small scratches. The sensitivity of the HCF and VHCF strength to small scratches was evaluated based on the √area parameter model.

Original language	English
Pages (from-to)	1514-1528
Number of pages	15
Journal	Fatigue and Fracture of Engineering Materials and Structures
Volume	41
Issue number	7
DOIs	https://doi.org/10.1111/ffe.12793
Publication status	Published - Jul 2018
Externally published	Yes

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1111/ffe.12793

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AU - Nishimura, Y.

AU - Yanase, K.

AU - Ikeda, Y.

AU - Tanaka, Y.

AU - Miyamoto, N.

AU - Miyakawa, S.

AU - Endo, M.

PY - 2018/7

Y1 - 2018/7

N2 - In compression coil springs subjected to cyclic load, fatigue cracks can sometimes initiate and propagate from scratch-like small defects produced during the manufacturing process and degrade the fatigue strength. In this study, torsional and rotating bending fatigue tests were conducted to examine the fatigue behavior of a high-strength spring steel (JIS G 3561, SWOSC-V) in the presence of small scratches. The sensitivity of the HCF and VHCF strength to small scratches was evaluated based on the √area parameter model.

AB - In compression coil springs subjected to cyclic load, fatigue cracks can sometimes initiate and propagate from scratch-like small defects produced during the manufacturing process and degrade the fatigue strength. In this study, torsional and rotating bending fatigue tests were conducted to examine the fatigue behavior of a high-strength spring steel (JIS G 3561, SWOSC-V) in the presence of small scratches. The sensitivity of the HCF and VHCF strength to small scratches was evaluated based on the √area parameter model.

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Fatigue strength of spring steel with small scratches

Abstract

All Science Journal Classification (ASJC) codes

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