期刊
COMPUTERS & MATHEMATICS WITH APPLICATIONS
卷 66, 期 6, 页码 943-964出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.camwa.2013.06.022
关键词
Cancellous bone; Random waves; Ultrasound; Viscoelastic material
资金
- NSF [DMS-0920850]
- Simons Foundation [246170]
In this paper, we perform time-domain simulations of ultrasound interrogations on cancellous bone. We are interested in describing the attenuation of displacement as a function of frequency as well as of bone porosity. A representative volume element for the cancellous bone is constructed using a two-dimensional random distribution of fluid and solid particles, via the turning bands method. Our numerical results compare favorably with those obtained from homogenization methods. (C) 2013 Elsevier Ltd. All rights reserved.
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