1508 Applicability of Strain Measurement by Oscillation Circuit Method to Detection of Fatigue Damage
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- UTSUNOMIYA Takao
- Shibaura Institute of Technology
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- SAITO Atsushi
- Shibaura Institute of Technology
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- SAEKI Wataru
- Graduate Student, Shibaura Institute of Technology
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- SATO Yutaka
- Japan Aerospace Exploration Agency
Bibliographic Information
- Other Title
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- 1508 発振回路法を用いたひずみ計測の疲労損傷検出への適用性(S10-2 非破壊評価とモニタリングII,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)
Abstract
The safety of structures and mechanical instruments can be evaluated quantitatively by monitoring the damage level of the composition elements. In this study, we propose the oscillation circuit method for measuring local strain in the elements. The fatigue tests of the specimen with a center hole are carried out under tension-compression axial loading, and the change of local strain is measured by using the oscillation circuit method and the usual instrument. The results are summarized as follows; (1) when the frequency of cyclic load is low, the strain measured by the oscillation circuit method agrees well with that by the usual measurement. (2) the crack initiation and propagation can be monitored based on the mean value of sampling time of stain measured by the oscillation circuit method.
Journal
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- The proceedings of the JSME annual meeting
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The proceedings of the JSME annual meeting 2008.1 (0), 329-330, 2008
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390282681041237376
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- NII Article ID
- 110007658559
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- ISSN
- 24331325
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed