✦ LIBER ✦

Strain distributions in vibrating rods of variable cross-sections—Part 2: High power ultrasonic applications

✍ Scribed by P. Bajons; W. Fritsch; M. Rösel

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 626 KB
Volume: 43
Category: Article
ISSN: 0003-682X
DOI: 10.1016/0003-682x(94)90056-6

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✦ Synopsis

This paper gives a deeper insight into the vibration behaviour of specimens to which high-power ultrasonics is applied, and follows Part 1 (Bajons, P. & Fritsch, W., Applied Acoustics, 43 (1994) 113-26). By means of finite element calculations, the distribution of the longitudinal strain and the radial strain in rods and dumb-bells is studied. The results are discussed with respect to practical applications. Finally, limitations in the use of the usually applied one-dimensional approaches to calculating deformation parameters are pointed out.

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The role of the finite element method in studying stress~strain~displacement distributions in vibrating structures is discussed with respect to high-power ultrasonic compacting and fatigue testing. The principles of the formulations used to perform the numerical simulations are briefly mentioned. Th