An efficient experimental methodology for viscoelastic complex modulus identification

• Type: Article in International Conference Proceedings Book
• Date: 2005

Authors

Rui A. S. Moreira (Author) Other; José Dias Rodrigues (Author) FEUP

Conference proceedings International

Title: II ECCOMAS Thematic Conference on Smart Structures and Materials, Lisboa, 2005

II ECCOMAS Thematic Conference on Smart Structures and Materials

Lisboa, 2005

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences > Engineering > Mechanical engineering

Other information

Abstract (EN): The numerical simulation of viscoelastic damping treatments requires a correct identification of the complex modulus of the viscoelastic materials. In this work, a simple and accurate experimental setup and methodology to identify the complex modulus of viscoelastic materials in shear are presented, tested and validated using commonly applied viscoelastic materials. The test system is based on the direct complex stiffness measurement. A numerical processing analysis is performed on the measured data in order to verify the validity of the measurement and to construct the usual nomogram representation of the complex modulus. This direct approach avoids the identification limitations of the vibrating beams technique usually applied in the viscoelastic complex modulus characterization.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13