Observations on Mechanics Properties of Stitched Foam-Core Sandwich by Flexural Testing

Abstract:

Stitched foam-core sandwich structure is a new light weight sandwich structure material. In this paper, flexural testing was performed. For comparison purposes, the stitched foam-core sandwich structure with different stitch density and the unstitched foam-core sandwich structure were tested. The experimental results show the maximum failure loads was decreased owing to stitch for the flexural testing. The bending stiffness increases for stitched foam-core sandwich structure.

• Periodical: Advanced Materials Research (Volume 487)
• Pages: 337-341
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.487.337
• Online since: March 2012
• Authors: Wei Xie, Fei Xu, Hui Ming Yang
• Keywords: Flexural Testing, Foam Core Sandwich Structures, Stitched, Unstitched

References

[1] Stanley, L.E., Development and Evaluation of Stitched Sandwich Structures, Master's thesis, University of Utah, Salt Lake City, UT. (2001).

[2] Gharpure, S.S., Failure Mechanisms of Stitched Sandwich Composite Under Interlaminar Loading, Master's thesis, University of Utah, Salt Lake City, UT. (2006).

[3] Lascoup, B., et al., On the Mechanical Effect of Stitch Addition in Sandwich Structures, Compiegne Cedex : Composites Science and Technologies. 66(2006) 1385-1398.

DOI: 10.1016/j.compscitech.2005.09.005

[4] Raju, I.S. and Glaessgen, E.H., Effect of Stitching on Debonding in Composite Structural Elements, Analytical and Computational Methods Branch Langley, Hampton. (2001).

[5] Mouritz, A. P., Fracture and Tensile Fatigue Properties of Stitched Fiberglass Composites, Institute of Mechanical Engineers Materials: Design and Applications, Melbourne. (2003).

[6] Stoll, F. and Banerjee, R., Measurement and Analysis of Fiber-Composite-Reinforced-Foam Sandwich Core Material Properties, International SAMPE Symposium and Exhibition, Long Beach, CA. (2001).

[7] Stoll, F., et al, High-Performance, Low-Cost Infusion Cores for Structural Sandwich Structures, Proceedings of SAMPE, Long Beach, CA. 5(2004) 16-20.

[8] Muthyala, V. D., Composite Sandwich Structure with Grid Stiffened Core, Master's thesis, Osmania University, Hyderabad, India. (2007).

[9] Mouritz, A. P., Compression Properties of Z-Pinned Sandwich Composites, Journal of Material Science, Melbourne, Australia. 41(2006) 5771-5774.

DOI: 10.1007/s10853-006-0114-8

[10] Thien Sok, Effects of Angled Stitch Reinforcement on Foam Core Sandwich Structures. The University of Utah, (2010).

[11] Yang Hui, Zhang Xiaojing, Wang Hai, Shear Stiffness Prediction of Stitched Composite Sandwich Structure with Foam Core, CHINESE JOURNAL OF APPLIED MECHANICS, 26(2009) 600-603.

[12] MA Yuanchun, HAN Haitao, LU Zixing, LU Wenshu, Theoretical prediction and experimental study of the stiffness of stitched foam-core sandwich composites, Acta Materiae Compositae Sinica, 27(2010)101-107.

[13] ZHENG Xitao, SUN Qin, LI Ye, CHAI Yanan, CAO Zhenghua, Mechanical behavior and damage tolerance tests of composites through-thickness stitched foam sandwich structures, Acta Materiae Compositae Sinica, 23(2006) 29-36.