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Simultaneous Measurement of Torque, Axial Force and Volume Change in the Torsional Dilatometer and the Implications for Constitutive Modeling

Published

Author(s)

Carl R. Schultesiz, G B. McKenna

Abstract

The NIST Torsional Dilatometer measures simultaneously the torque, axial normal force and volume change in response to a torsional deformation. In stress-relaxation experiments with an epoxy cylinder near its glass transition, the torque and normal force decay monotonically, but the volume change associated with the torsion shows a significant non-monotonic decay at lower temperatures. The measurements are investigated with a series solution for torsion of an elastic, compressible material [Murnaghan, F. D. (1951) Finite Deformation of an Elastic Solid. Wiley, New York].
Proceedings Title
Proceedings of the Fourth International Conference on Constitutive Laws for Engineering Materials: Emperiment, Theory, Computation and Applications
Volume
270
Conference Dates
July 27-30, 1999
Conference Location
Troy, NY
Conference Title
International Conference on Constitutive Laws

Keywords

compressible material, normal force, torque, torsion, viscoelasticity, volume change

Citation

Schultesiz, C. and McKenna, G. (1999), Simultaneous Measurement of Torque, Axial Force and Volume Change in the Torsional Dilatometer and the Implications for Constitutive Modeling, Proceedings of the Fourth International Conference on Constitutive Laws for Engineering Materials: Emperiment, Theory, Computation and Applications, Troy, NY, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=851563 (Accessed May 26, 2024)

Issues

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Created December 31, 1998, Updated October 12, 2021