This article concerns the mechanical response of random glass fiber strand swirl-mat/urethane matrix composite under static and cyclic loads as well as under elevated temperatures. The article presents an extensive amount of experimental data as well as predictions based upon a coupled damage/viscoelastic constitutive formulation generated specifically to model the behavior of the material at hand. Damage evolution relations are derived from an empirical relationship. This work extends previously published results.

Issue Section:
Technical Papers
Topics:
Composite materials, Damage, Glass fibers, Polymer composites, Stress, Temperature, Urethane elastomers
1.
Corum, J. M., Battiste, R. L., Brinkman, C. R., Ren, W., Ruggles, M. B., Weitsman, Y. J., and Yahr, G. T., “Durability-Based Criteria for an Automotive Structural Composite. Part 2. Background Data and Models,” Oak Ridge National Laboratory Report ORNL-6391, Feb. 1998.
2.
Smith
L. V.
, and
Weitsman
Y. J.
, “
Inelastic Behavior of Randomly Reinforced Polymeric Composites and Cyclic Loading
,”
Mechanics of Time-Dependent Materials
, Vol.
1
, pp.
293
–
305
,
1998
.
3.
Smith
L. V.
, and
Weitsman
Y. J.
, “
The Visco-Damage Mechanical Response of Swirl-Mat Composites
,”
Int. J. Fracture
, Vol.
92
, No.
3
, pp.
201
–
220
,
1999
.
4.
Elahi, M., and Weitsman, Y. J., “On the Mechanical Response of P4 Chopped Glass/Urethane Resin Composite: Data and Model,” ORNL/TM-6955, Engineering Technology Division, Bldg, 9204-1, M/S 8051, Box 2009, ORNL, Oak Ridge, TN 37831-8051, Mar.1999.
5.
Elahi, M., and Weitsman, Y. J., “Some Aspects of the Deformation Response of Swirl-Mat Composites,” ORNL/TM-13521, Engineering Technology Division, Bldg. 9204-1, M/S 8051, Box 2009, ORNL, Oak Ridge, TN 37831-8051, May 1999.
6.
Abdel-Tawab
Kh.
, and
Weitsman
Y. J.
, “
A Coupled Viscoelasticity/Damage Model with Application to Swirl-Mat Composites
,”
Int. J. Damage Mechanics
, Vol.
7
, pp.
351
–
380
,
1998
.
7.
Abdel-Tawab, Kh., and Weitsman, Y. J., “A Strain-Based Formulation for the Coupled Viscoelasticity/Damage Behavior,” University of Tennessee Report. MAES97-3.0-CM, July 1997 (to appear in ASME J. Appl. Mechanics).
8.
Lemaitre, J., and Chaboche, J.-L., Mechanics of Solid Materials, English Translation, Cambridge University Press, 1985.
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