Model for Shear Response of Asphaltic Concrete at Different Shear Rates and Temperatures
Publication: Journal of Engineering Mechanics
Volume 135, Issue 11
Abstract
This paper presents a model for shear response of asphaltic concrete, taking into account of strain-rate and temperature effects. The model employs rate-dependent hyperplasticity theory, which is based on a thermomechanical framework. A principle of the theory is that the entire constitutive behavior can be defined by two scalar potentials: an energy potential and a flow potential. The viscous behavior of the model corresponds to the results of rate process theory and defines the strain-rate and time dependent behavior. The initial modulus and shear strength are each assumed to be exponential functions of the inverse of temperature. The model is verified and calibrated against the unconfined compression test data for asphaltic concrete at different strain rates and temperatures. A viscoelastic damage model is also addressed to make a comparison with the model developed here. Comparison between the test data, the predictions of the new model, and the predictions of the viscoelastic damage model are discussed.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The first writer of this paper thanks the Commission on Higher Education, the Ministry of Education of Thailand for a travel research grant to visit the U.K., and Dr. C.E. Augarde for accommodating him at Durham University. The first writer also appreciates the help of Mrs. Ruth Kinahan at Oxford University on administration of his visit there.
References
Houlsby, G. T., and Puzrin, A. M. (2000). “A thermomechanical framework for constitutive models for rate-independent dissipative materials.” Int. J. Plast., 16(9), 1017–1047.
Houlsby, G. T., and Puzrin, A. M. (2002). “Rate-dependent plasticity models derived from potential functions.” J. Rheol., 46(1), 113–126.
Houlsby, G. T., and Puzrin, A. M. (2006). Principles of hyperplasticity: An approach to plasticity theory based on thermodynamic principles, Springer, New York.
Mitchell, J. K., and Soga, K. (2005). Fundamentals of soil behavior, 3rd Ed., Wiley, New York.
Park, S. W., and Kim, Y. R. (2001). “Fitting prony-series viscoelastic models with power-law presmoothing.” J. Mater. Civ. Eng., 13(1), 26–32.
Park, S. W., Kim, Y. R., and Schapery, R. A. (1996). “A viscoelastic continuum damage model and its application to uniaxial behavior of asphalt concrete.” Mech. Mater., 24, 241–255.
Puzrin, A. M., and Houlsby, G. T. (2001). “A thermomechanical framework for rate-independent dissipative materials with internal functions.” Int. J. Plast., 17, 1147–1165.
Puzrin, A. M., and Houlsby, G. T. (2003). “Rate dependent hyperplasticity with internal functions.” J. Eng. Mech., 129(3), 252–263.
Schapery, R. A. (1999). “Nonlinear viscoelastic and viscoplastic constitutive equations with growing damage.” Int. J. Fract., 97, 33–66.
Schwartz, C. W., Gibson, N., and Schapery, R. A. (2002). “Time-temperature superposition for asphalt concrete at large compressive strains.” Transportation Research Record. 1789, Transportation Research Board, Washington, D.C., 101–112.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 135 • Issue 11 • November 2009
Pages: 1257 - 1264
Copyright
© 2009 ASCE.
History
Received: Dec 1, 2006
Accepted: Jul 8, 2009
Published online: Oct 15, 2009
Published in print: Nov 2009
Notes
Note. Associate Editor: Christian Hellmich
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.