In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 107, No. 5_Supplement ( 2000-05-01), p. 2838-2838
Abstract:
Photoelastic and shadowgraph imaging techniques were used to visualize shock wave propagation, evolution, and the resultant transient stress fields in solids during shock wave lithotripsy. In parallel, theoretical analysis of the wavefront evolution inside the solids was performed using the ray-tracing method. Excellent agreement between the theoretical prediction and experimental results was observed. Moreover, the effects of sample size and shape on wave evolution and associated stress fields induced inside the solids were evaluated, both theoretically and experimentally. Finally, stone fragmentation tests were carried out using stone phantoms of different geometry and size, and the characteristics of the damage patterns were documented. By correlating the stone fragmentation patterns with the behavior of different wave components induced in the target stones, it was found that while the damage cracks near the posterior surface of the sample were initiated by the reflected longitudinal tensile wave, the transmitted shear wave plays a critical role in crack extension. [Work supported by NIH.]
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
2000
detail.hit.zdb_id:
1461063-2
detail.hit.zdb_id:
219231-7
