Abstract
Paper presents a method to measure the complex modulus of rigid viscoelastic materials by the longitudinal vibration testing. In the measurement, one end of a rod of the material is driven by a transducer using a pulse wave and the other end is allowed to move freely. The Complex-modulus is calculated from the displacement ratio between the driven end and the free end. The displacement of the rod end is measured by an accelerometer whose mass load should be considered since the accelerometer is attached to the rod. The displacement ratio can be obtained over a wide frequency range because the driven signal of the pulse wave is a broadband signal. The Complex-modulus can then be determined at resonant frequencies. Some rigid viscoelastic rods are measured and the measured results agree well with that of commercial viscoelastic instrument.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
