Skip to main content
Journal cover image

An experimentally-calibrated damage mechanics model for stone fracture in shock wave lithotripsy.

Publication ,  Journal Article
Fovargue, D; Mitran, S; Sankin, G; Zhang, Y; Zhong, P
Published in: International journal of fracture
May 2018

A damage model suggested by the Tuler-Butcher concept of dynamic accumulation of microscopic defects is obtained from experimental data on microcrack formation in synthetic kidney stones. Experimental data on appearance of microcracks is extracted from micro-computed tomography images of BegoStone simulants obtained after subjecting the stone to successive pulses produced by an electromagnetic shock-wave lithotripter source. Image processing of the data is used to infer statistical distributions of crack length and width in representative transversal cross-sections of a cylindrical stone. A high-resolution finite volume computational model, capable of accurately modeling internal reflections due to local changes in material properties produced by material damage is used to simulate the accumulation of damage due to successive shocks. Comparison of statistical distributions of microcrack formation in computation and experiment allows calibration of the damage model. The model is subsequently used to compute fracture of a different aspect-ratio cylindrical stone predicting concurrent formation of two main fracture areas as observed experimentally.

Duke Scholars

Published In

International journal of fracture

DOI

EISSN

1573-2673

ISSN

0376-9429

Publication Date

May 2018

Volume

211

Issue

1-2

Start / End Page

203 / 216

Related Subject Headings

  • Mechanical Engineering & Transports
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 4005 Civil engineering
  • 0913 Mechanical Engineering
  • 0912 Materials Engineering
  • 0905 Civil Engineering
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Fovargue, D., Mitran, S., Sankin, G., Zhang, Y., & Zhong, P. (2018). An experimentally-calibrated damage mechanics model for stone fracture in shock wave lithotripsy. International Journal of Fracture, 211(1–2), 203–216. https://doi.org/10.1007/s10704-018-0283-x
Fovargue, Daniel, Sorin Mitran, Georgy Sankin, Ying Zhang, and Pei Zhong. “An experimentally-calibrated damage mechanics model for stone fracture in shock wave lithotripsy.International Journal of Fracture 211, no. 1–2 (May 2018): 203–16. https://doi.org/10.1007/s10704-018-0283-x.
Fovargue D, Mitran S, Sankin G, Zhang Y, Zhong P. An experimentally-calibrated damage mechanics model for stone fracture in shock wave lithotripsy. International journal of fracture. 2018 May;211(1–2):203–16.
Fovargue, Daniel, et al. “An experimentally-calibrated damage mechanics model for stone fracture in shock wave lithotripsy.International Journal of Fracture, vol. 211, no. 1–2, May 2018, pp. 203–16. Epmc, doi:10.1007/s10704-018-0283-x.
Fovargue D, Mitran S, Sankin G, Zhang Y, Zhong P. An experimentally-calibrated damage mechanics model for stone fracture in shock wave lithotripsy. International journal of fracture. 2018 May;211(1–2):203–216.
Journal cover image

Published In

International journal of fracture

DOI

EISSN

1573-2673

ISSN

0376-9429

Publication Date

May 2018

Volume

211

Issue

1-2

Start / End Page

203 / 216

Related Subject Headings

  • Mechanical Engineering & Transports
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 4005 Civil engineering
  • 0913 Mechanical Engineering
  • 0912 Materials Engineering
  • 0905 Civil Engineering