Strain measurements on specimens subjected to biaxial ultrasonic fatigue testing
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- 作者：M. Vieira ; mario.vieira@ist.utl.pt" class="auth_mail" title="E-mail the corresponding author ; L. Reis ; M. Freitas ; A. Ribeiro
- 关键词：Multiaxial fatigue ; Very high cycle fatigue ; Strain measurements ; Ultrasonic frequencies
- 刊名：Theoretical and Applied Fracture Mechanics
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：85
- 期：part_PA
- 页码：2-8
- 全文大小：3062 K
文摘
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Preliminary studies on biaxial conditions using an ultrasonic exciter were produced.
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These studies represent the first step towards ultrasonic fatigue testing on biaxial loading.
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Comparison was produced with conventional testing to qualitatively assess the correct biaxial behavior of the specimen.
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The obtained biaxial stress state on the ultrasonic exciter consisted on a 2/3 shear-axial stress relationship.
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These tests will serve as groundwork for future developments on multiaxial gigacycle fatigue testing.