Mean stress effects on fatigue of NiTi

R. M. Tabanli; N. K. Simha; B. T. Berg

doi:10.1016/s0921-5093(99)00340-8

Mean stress effects on fatigue of NiTi

R. M. Tabanli, N. K. Simha^*, B. T. Berg

^*Corresponding author for this work

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

75 Citations (Scopus)

Abstract

Fatigue properties of shape-memory alloys (SMA) play an important role in actuator and certain biomedical applications. Since a small cyclic stress can trigger martensitic transformation when the mean stress is close to a critical stress, it is crucial to understand the effect of mean stress. This paper examines mean stress effects on fatigue properties of a NiTi SMA through systematic experiments. Preliminary results indicate that the cycles-to-failure has a non-monotone dependence on the mean strain at fixed strain amplitude.

Original language	English
Pages (from-to)	644-648
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	273-275
DOIs	https://doi.org/10.1016/s0921-5093(99)00340-8
Publication status	Published - 15 Dec 1999
Externally published	Yes

Keywords

Fatigue
Martensite transformation
Mean stress effect
NiTi

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10.1016/s0921-5093(99)00340-8

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abstract = "Fatigue properties of shape-memory alloys (SMA) play an important role in actuator and certain biomedical applications. Since a small cyclic stress can trigger martensitic transformation when the mean stress is close to a critical stress, it is crucial to understand the effect of mean stress. This paper examines mean stress effects on fatigue properties of a NiTi SMA through systematic experiments. Preliminary results indicate that the cycles-to-failure has a non-monotone dependence on the mean strain at fixed strain amplitude.",

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author = "Tabanli, {R. M.} and Simha, {N. K.} and Berg, {B. T.}",

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AU - Tabanli, R. M.

AU - Simha, N. K.

AU - Berg, B. T.

PY - 1999/12/15

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N2 - Fatigue properties of shape-memory alloys (SMA) play an important role in actuator and certain biomedical applications. Since a small cyclic stress can trigger martensitic transformation when the mean stress is close to a critical stress, it is crucial to understand the effect of mean stress. This paper examines mean stress effects on fatigue properties of a NiTi SMA through systematic experiments. Preliminary results indicate that the cycles-to-failure has a non-monotone dependence on the mean strain at fixed strain amplitude.

AB - Fatigue properties of shape-memory alloys (SMA) play an important role in actuator and certain biomedical applications. Since a small cyclic stress can trigger martensitic transformation when the mean stress is close to a critical stress, it is crucial to understand the effect of mean stress. This paper examines mean stress effects on fatigue properties of a NiTi SMA through systematic experiments. Preliminary results indicate that the cycles-to-failure has a non-monotone dependence on the mean strain at fixed strain amplitude.

KW - Fatigue

KW - Martensite transformation

KW - Mean stress effect

KW - NiTi

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U2 - 10.1016/s0921-5093(99)00340-8

DO - 10.1016/s0921-5093(99)00340-8

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VL - 273-275

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JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Mean stress effects on fatigue of NiTi

Abstract

Keywords

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