Loading ramp effects in uniaxial compression creep device

Carolina Amador, Alireza Nabavizadeh, Randall Kinnick, Mostafa Fatemi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Tissue viscoelastic properties measured by uniaxial compression creep ultrasound method have shown correlation with tissue state. The majority of creep studies assume step-loading conditions, which are analytically convenient but experimentally impossible to implement. The goals of the study were to compare global creep response using a conventional mechanical testing machine to a prototype compression device as well as studying the effects of loading rate in the creep response. A 10% gelatin phantom was tested with the prototype compression device and a commercial mechanical testing machine with a 3 N force held for 30 seconds and loading rates of 3 N/s and 20 N/s. Additionally a Dynamic Mechanical Analysis (DMA) was used to characterize the phantom viscoelastic properties. The measured loss tangent with prototype compression device and commercial mechanical testing machine were similar and converged to DMA results as the loading rate was increased.

Original languageEnglish (US)
Title of host publicationIEEE International Ultrasonics Symposium, IUS
PublisherIEEE Computer Society
Pages2320-2322
Number of pages3
ISBN (Print)9781479970490
DOIs
StatePublished - Oct 20 2014
Event2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, United States
Duration: Sep 3 2014Sep 6 2014

Other

Other2014 IEEE International Ultrasonics Symposium, IUS 2014
CountryUnited States
CityChicago
Period9/3/149/6/14

Fingerprint

loading rate
ramps
test equipment
prototypes
gelatins
tangents

Keywords

  • creep
  • loading rate
  • tissue
  • Uniaxial compression
  • viscoelasticity

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Amador, C., Nabavizadeh, A., Kinnick, R., & Fatemi, M. (2014). Loading ramp effects in uniaxial compression creep device. In IEEE International Ultrasonics Symposium, IUS (pp. 2320-2322). [6931931] IEEE Computer Society. https://doi.org/10.1109/ULTSYM.2014.0578

Loading ramp effects in uniaxial compression creep device. / Amador, Carolina; Nabavizadeh, Alireza; Kinnick, Randall; Fatemi, Mostafa.

IEEE International Ultrasonics Symposium, IUS. IEEE Computer Society, 2014. p. 2320-2322 6931931.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Amador, C, Nabavizadeh, A, Kinnick, R & Fatemi, M 2014, Loading ramp effects in uniaxial compression creep device. in IEEE International Ultrasonics Symposium, IUS., 6931931, IEEE Computer Society, pp. 2320-2322, 2014 IEEE International Ultrasonics Symposium, IUS 2014, Chicago, United States, 9/3/14. https://doi.org/10.1109/ULTSYM.2014.0578
Amador C, Nabavizadeh A, Kinnick R, Fatemi M. Loading ramp effects in uniaxial compression creep device. In IEEE International Ultrasonics Symposium, IUS. IEEE Computer Society. 2014. p. 2320-2322. 6931931 https://doi.org/10.1109/ULTSYM.2014.0578
Amador, Carolina ; Nabavizadeh, Alireza ; Kinnick, Randall ; Fatemi, Mostafa. / Loading ramp effects in uniaxial compression creep device. IEEE International Ultrasonics Symposium, IUS. IEEE Computer Society, 2014. pp. 2320-2322
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