Transverse vibration of pre-stressed beams: an experimental technique for the determination of dynamic viscoelastic material properties of tissue mimicking materials

Date

2008-12-01

Author

Yazıcıoğlu, Yiğit
Navarro-castillo, K.
Kutluay, U.
Roystonc, T.j.

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An experimental dynamic material property identification technique is presented that is based on the theoretical formulations of a vibrating pre-stressed beam. The technique determines the viscoelastic material properties of tissue mimicking materials that govern their dynamic behavior. Results are presented for a silicone based material (CF11-2188 Nusil Silicone Technology, Carpinteria, CA) that is in the form of a thick string held between fixed supports under tensile pre-stress. The specimens are excited through the transverse harmonic displacement of the boundary. Transverse vibration at an arbitrary location is measured and compared with theory to identify material viscoelastic moduli valid up to at least several hundred Hertz. The presented technique can aid in providing accurate viscoelastic parameter values for phantoms that are used in the development of a range of medical diagnostic techniques that attempt to identify pathology or tissue differentiation via changes in mechanical stiffness and viscosity.

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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84874912730&origin=inward
https://hdl.handle.net/11511/77484

Collections

Department of Mechanical Engineering, Conference / Seminar

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Citation Formats

Y. Yazıcıoğlu, K. Navarro-castillo, U. Kutluay, and T. j. Roystonc, “Transverse vibration of pre-stressed beams: an experimental technique for the determination of dynamic viscoelastic material properties of tissue mimicking materials,” Paris, Fransa, 2008, p. 6355, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84874912730&origin=inward.