Fatigue Strength of Plain and Notched Specimens of Thermoplastics. (In The Case of Polyetheretherketone)

Hironobu Nisitani; Hiroshi Noguchi; Terutaka Yamaguchi; Yun Hae Kim

doi:10.1299/kikaia.57.1695

Fatigue Strength of Plain and Notched Specimens of Thermoplastics. (In The Case of Polyetheretherketone)

Hironobu Nisitani, Hiroshi Noguchi, Terutaka Yamaguchi, Yun Hae Kim

Strength of materials

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

Abstract

In this paper, rotating-bending fatigue tests for polyetheretherketone (PEEK) were carried out to investigate the fatigue characteristics of plain and notched specimens at room temperature. The results were discussed using linear notch mechanics. In the case of the plain specimen, fracture always occurs from defects and the crack growth rate is very high. The fatigue crack initiation of this material is of the point-initiation type and the fatigue strangth is very sensitive to a notch. The fatigue strength of an arbitrarily notched specimen of this material will be estimated from the present results rearranged based on linear notch mechanics.

Original language	English
Pages (from-to)	1695-1699
Number of pages	5
Journal	Transactions of the Japan Society of Mechanical Engineers Series A
Volume	57
Issue number	540
DOIs	https://doi.org/10.1299/kikaia.57.1695
Publication status	Published - 1991

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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abstract = "In this paper, rotating-bending fatigue tests for polyetheretherketone (PEEK) were carried out to investigate the fatigue characteristics of plain and notched specimens at room temperature. The results were discussed using linear notch mechanics. In the case of the plain specimen, fracture always occurs from defects and the crack growth rate is very high. The fatigue crack initiation of this material is of the point-initiation type and the fatigue strangth is very sensitive to a notch. The fatigue strength of an arbitrarily notched specimen of this material will be estimated from the present results rearranged based on linear notch mechanics.",

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AU - Yamaguchi, Terutaka

AU - Kim, Yun Hae

PY - 1991

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AB - In this paper, rotating-bending fatigue tests for polyetheretherketone (PEEK) were carried out to investigate the fatigue characteristics of plain and notched specimens at room temperature. The results were discussed using linear notch mechanics. In the case of the plain specimen, fracture always occurs from defects and the crack growth rate is very high. The fatigue crack initiation of this material is of the point-initiation type and the fatigue strangth is very sensitive to a notch. The fatigue strength of an arbitrarily notched specimen of this material will be estimated from the present results rearranged based on linear notch mechanics.

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Fatigue Strength of Plain and Notched Specimens of Thermoplastics. (In The Case of Polyetheretherketone)

Abstract

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