Load rate effects on the crush response of laminated corrugated beams
Tan, Kian Yip
Fazal Elyas, Sana
AdvisorKeshavanarayana, Suresh R.
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Tan, Kian Yip, and Sana Fazal Elyas (2010). Load rate effects on the crush response of laminated corrugated beams. -- In Proceedings: 6th Annual Symposium: Graduate Research and Scholarly Projects. Wichita, KS: Wichita State University, p. 189-190
This experimental study addresses the progressive crushing responses of laminated corrugated beams fabricated using Newport NB321/7781 E-glass prepreg material. Stacking sequences of n and n where n=4,8 and 12 have been used. The progressive crushing behavior has been studied at quasi-static rates and at selected dynamic loading rates. The test data indicates that the peak load levels increase with load rate, while the sustained crushing load decreases. n surpass n in terms of energy absorbing capability at various loading rates by at least 30%. The failure modes in n beams was observed to be rate sensitive with the number of fronds and frond fragmentation changing with test speed.
Paper presented to the 6th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 23, 2010.
Research completed at the Dept. of Aerospace Engineering, College of Engineering
Research completed at the Department of Aerospace Engineering, College of Engineering