Experimental study on the damage of hexagonal honeycombs under in–plane shear loading does not appear to be available in the literature. In this paper, shear damage behaviors of five different hexagonal mesostructures are investigated with rapid prototyped polycarbonate (PC) honeycomb coupon samples and proper design of a fixture for shear loading. Effective shear stress-strain curves of PC honeycomb coupons are generated for each shear test and the corresponding local cell wall failure is investigated. Two different failure modes of PC honeycombs were observed primarily depending on the cell wall thickness: The PC honeycombs having a lower cell wall thickness induce the plastic post buckling, resulting in preventing propagation of initial cracks through the cell wall end up with higher plastic load bearing. On the other hand, the failure mode of the honeycombs having a high cell wall thickness is the cell wall fracture by crack propagation through wall without severe buckling.
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ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 15–18, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Design Engineering Division and Computers in Engineering Division
ISBN:
978-0-7918-4409-0
PROCEEDINGS PAPER
Experimental Damage Characterization of Hexagonal Honeycombs Subjected to In-Plane Shear Loading
Shraddha Joshi,
Shraddha Joshi
Clemson University, Clemson, SC
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Luke Berglind,
Luke Berglind
Clemson University, Clemson, SC
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Joshua D. Summers,
Joshua D. Summers
Clemson University, Clemson, SC
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John D. DesJardins
John D. DesJardins
Clemson University, Clemson, SC
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Shraddha Joshi
Clemson University, Clemson, SC
Jaehyung Ju
Clemson University, Clemson, SC
Luke Berglind
Clemson University, Clemson, SC
Roy Rusly
Clemson University, Clemson, SC
Joshua D. Summers
Clemson University, Clemson, SC
John D. DesJardins
Clemson University, Clemson, SC
Paper No:
DETC2010-28549, pp. 35-41; 7 pages
Published Online:
March 8, 2011
Citation
Joshi, S, Ju, J, Berglind, L, Rusly, R, Summers, JD, & DesJardins, JD. "Experimental Damage Characterization of Hexagonal Honeycombs Subjected to In-Plane Shear Loading." Proceedings of the ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 36th Design Automation Conference, Parts A and B. Montreal, Quebec, Canada. August 15–18, 2010. pp. 35-41. ASME. https://doi.org/10.1115/DETC2010-28549
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