Development of new V(z) curve technique for soft materials

Chiaki Miyasaka, Koichi Komaki, Bernhard R. Tittmann

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


The present article reports a technique to characterize small portions in the order of a few micron of a soft anisotropic material. The heart muscle was selected for specimen as an example of the soft material. The heart muscle was cut by a microtome and coated on a substrate. The thickness of the specimen was substantially 3 μm. For the substrate, fused quartz was used because its elastic properties are known and stable. The spherical acoustic lens was used to determine the position for the measurement. Considering the anisotropy of the specimen, the cylindrical lens was used to measure velocities of the Rayleigh waves propagating within the specimen. The frequency of 400 MHz was used for both the visualization and the measurement. The generation of the Rayleigh waves in the above conditions was confirmed by numerical calculations based on the wave propagation theory for layered media. As a result, the variation of the velocities representing the anisotropy of elastic properties were obtained and found to be about 7%.

Original languageEnglish (US)
Pages (from-to)182-190
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jan 1 2000
EventNondestructive Evaluation of Aging Materials and Composites IV - Newport Beach, CA, USA
Duration: Mar 8 2000Mar 9 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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