The behavior of pultruded structural shapes under combined axial load and end moment is investigated experimentally. A combination of standard displacement transducers and full-field shadow moire is used to record in real time all the deformation modes of the beam-column. A data reduction technique is proposed for interpretation of the full-field deformation data. Observations and quantitative data are presented regarding buckling initiation and collapse of five types of fiber-reinforced composite beam-columns.
Get full access to this article
View all access options for this article.
References
1.
1. PULTEX Design Guide, Creative Pultrusions, Alum Bank, PA, 1989.
2.
2. Strongwell Design Manual, Strongwell, Bristol, VA, 1994.
4. Bank, L. C., Flexural and Shear Moduli of Full-Section Fiber Reinforced Plastic (FRP) Pultruded Beams, Journal of Testing and Evaluation, 17(1), 40-45, 1989.
5.
5. Bank, L. C., and Yin, J., Buckling of Orthotropic Plates with Free and Rotationally Restrained Unloaded Edges, Thin-Walled Structures, 24, 83-96, 1996.
6.
6. Bank, L. C., Nadipelli, M., and Gentry, T. R., Local Buckling and Failure of Pultruded Fiber Reinforced Plastic Beams, J. Engineering Materials Technology, 116, 233-237, 1994.
7.
7. Bank, L. C., Yin, J., and Nadipelli, M., Local Buckling of Pultruded Beams-Nonlinearity, Anisotropy and Inhomogeneity, Construction and Building Materials, 9(6), 325-331, 1995.
8.
8. Barbero, E. J. and J. Tomblin, A Phenomenological Design Equation for FRP Columns with Interaction Between Local and Global Buckling, Thin-Walled Structures, 18, 117-131, 1994.
9.
9. Zureick, A. and D. Scott, Short-Term Behavior and Design of Fiber Reinforced Polymeric Slender Members under Axial Compression, ASCE/Journal of Composites for Construction, 14, 140-149, 1997.
10.
10. Galambos, T. V., Guide to Stability Design Criteria for Metal Structures, Column Research Council, 4th Ed., John Wiley, New York, 1988.
11.
11. Massa, J. C. and Barbero, E. J., A Strength of Materials Formulation for Thin Walled Composite Beams with Torsion, Journal of Composite Materials, 32(17), 1560-1594, 1998.
12.
12. Pecce, M., Lazzaro, F., and Cosenza, E., Local Buckling of FRP Profiles: Experimental Results and Numerical Analyses, European Conference on Composite Materials ECCM-8, 331-338, Napoli, Italy, 1998.
13.
13. Tomblin, J. and E. J. Barbero, Local Buckling Experiments on FRP Colurnns, Thin-Walled Structures, 18, 97-116, 1994.
14.
14. Banks, W. M., and Rhodes, J., The Instability of Composite Sections, 2nd Int. Conf. on Composite Structures, Paisley, UK, Elsevier, 442-452, 1983.
15.
15. Barbero, E. J., and Raftoyiannis, I.Buckling Analysis of Pultruded Composite Columns, Impact and Buckling of Structures, ed. D. Hui, ASME AD-Vol. 20, AMD, Vol. 114, 47-52, 1990.
16.
16. Davalos, J. F. and Qiao, P., Engineering Design Analysis Equations for Local Buckling of FRP Structural Shapes, 2nd Int. Conf. on Composites in Infrastructure, 2, 248-260, Tucson, AZ, 1998.
17.
17. Morey, T. A., Johnson, E., and Shield, C. K.A Simple Beam Theory for the Buckling of Symmetric Composite Beams Including Interaction of In-Plane Stresses, Composite Science and Technology, 58, 1321-1333, 1998.
18.
18. Yuan, R. L., Hashen, Z., Green, A. and Bisarnsin, T., Fiber Reinforced Plastic Composite Columns, Adv. Composite Materials in Civil Eng. Structures, 205-211, ed., S. L. Iyer, ASCE, Las Vegas, NV, 31 Jan.-1Feb., 1991.
19.
19. Raftoyiannis, I., Godoy, L. A. and Barbero, E. J., Buckling Mode Interaction in Composite Plate Assemblies, Applied Mechanics Reviews, 52-60, 48 (11, Part 2), November, 1995.
20.
20. Gaylord, E. H. and Gaylord, L. N., Design of Steel Structures, McGraw Hill, 2nd. Ed., 1972.
21.
21. Brown, N. D., J. T. Mottram, and D. Anderson, The Behavior of Columns for the Design of Pultruded Frames: Tests on Isolated Centrally Loaded Columns, 2nd Int. Conf. on Composites in Infrastructure, 2, 248-260, Tucson, AZ, 1998.
22.
22. Barbero, E. J., Introduction to Composite Materials Design, Taylor and Francis, Philadelphia, PA, 1999.
23.
23. Barbero, E. and J. Trovillion, Prediction and Measurement of the Post-Critical Behavior of Fiber-Reinforced Composite Columns, Special issue on Civil Infrastructural Applications of Composite Materials, 58(8), 1335-1341, 1998.
24.
24. Barbero, E. J., Dede, E., and Jones, S., Experimental Validation of Buckling Mode Interaction in Intermediate Length Composite Columns, I. J. Solid Structures, to appear, 1999.
25.
25. American Institute of Steel Construction (AISC)Manual of Steel Construction Allowable Stress Design (ASD) Design Manual, Ninth Edition, 1989, American Institute of Steel Construction, Chicago, IL.
27. Schwarz, R. C., Determination of Out-of-Plane Displacements and the Initiation of Buckling in Composite Structural Elements, Experimental Techniques, 23-28, 1988.
28.
28. By Chrome, Columbus, OH, 1975.
29.
29. Southwell, R. V., On the Analysis of Experimental Observations in Problems of Elastic Stability, Proc. Royal Soc. London (A), 135, 601-616, 1932.