Post-buckling of composite I-sections. Part 2: Experimental validation

Date

2001-01-01

Author

Papila, M
Akgun, MA
Niu, XK
Ifju, P

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An experimental investigation was conducted in order to verify the theoretical model described in Part 1 as well as to obtain experimental insight and to generate a database for the post-buckling behavior of composite I-sections. The experiments were performed using a combination of the shadow moire technique, strain gages, LVDTs (linear variable differential transformer), and dial gages. A total of twenty carbon-fiber/epoxy I-section columns were manufactured and tested with seven specimens from woven fabric and thirteen from unidirectional (UD) tape. The initial buckling load, lateral deflection of the web and flange as well as the crippling load were measured. The experimental results were compared with those of the theoretical model described in Part 1. A good agreement was observed.

Subject Keywords

Composite, I-section, Buckling, Post-buckling, Crippling, Experiment, Shadow moire

URI

https://hdl.handle.net/11511/67602

Journal

JOURNAL OF COMPOSITE MATERIALS

DOI

https://doi.org/10.1106/jh7v-18vv-q4r1-kfq1

Collections

Department of Aerospace Engineering, Article

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Citation Formats

M. Papila, M. Akgun, X. Niu, and P. Ifju, “Post-buckling of composite I-sections. Part 2: Experimental validation,” JOURNAL OF COMPOSITE MATERIALS, pp. 797–821, 2001, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67602.