Paper Title:
Fragmentation of Kidney Stone by Shock Wave-Experimental Approach
  Abstract

To understand fundamentals of kidney stone™s fragmentation by shock wave impingement, experimental approach was carried out. Air gun system was used to transfer a well-controlled stress wave into a thin disk specimen. The specimen was fabricated with plaster and its dimensions are 10 mm in diameter and 1.2 mm in thickness. The obtained results are summarized as follows: As the stress pulse duration is decreased from 12 microseconds to 5 microseconds, the critical stress for fracture increased tremendously. The critical fracture stress for a specimen with a small hole in the specimen center is about one fifth of that for the plain specimen. The fracture takes place along the diameter perpendicular to the stress wave incident direction. Numerical stress analysis suggests that the principal stress criterion can explain the fracture mode.

  Info
Periodical
Key Engineering Materials (Volumes 261-263)
Edited by
Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka
Pages
307-312
DOI
10.4028/www.scientific.net/KEM.261-263.307
Citation
H. Homma, S. Mihradi, T. Takeuchi, "Fragmentation of Kidney Stone by Shock Wave-Experimental Approach", Key Engineering Materials, Vols. 261-263, pp. 307-312, 2004
Online since
April 2004
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Price
$32.00
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