Impact Loading Behavior of Large-Scale Two-Way Sandwich Panels with Natural Fiber–Reinforced Polymer Faces
Publication: Journal of Composites for Construction
Volume 28, Issue 1
Abstract
This paper presents experimental and numerical studies on sandwich panels with flax fiber–reinforced polymer (FFRP) faces and polyisocyanurate (PIR) foam cores. The panels are subjected to two-way bending under impact loads at the center, simulating applications like building cladding systems exposed to wind-borne debris. Nine large-scale panels were fabricated and subjected to impact loads; 412 tests were performed. Each panel was 1,220 mm × 1,220 mm with a nominal thickness of 80 mm. The main test parameters were core-to-face thickness ratio based on one, two, or three FFRP layers (core-to-face thickness ratios of 65.1, 32.6, and 21.7) and impact energy (50%, 70%, and 95% of failure energy). For each face thickness, three identical panels were fabricated and tested. The impact tests were performed using a 140-mm-diameter drop weight ranging from 10.5 to 20 kg, with a varying height of up to 3,250 mm. The results showed that the panels are susceptible to internal damage accumulating after impacts, such as core shear failure. Analyses of the test data showed that the impulse duration of a panel increased with an increase of damage. A finite-element model was also developed to predict the behavior of these panels under low-energy impacts. The model accounted for the nonlinear behavior of both the FFRP faces and foam cores. The model was used to perform a parametric study to examine the effect of core thickness, face thickness, and core density. It showed that impulse duration and maximum deflection increased with a decrease in face thickness, core density, and core thickness.
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Data Availability Statement
Data associated with this study are available upon request from the corresponding author.
Acknowledgments
The authors thank Anurag Mishra, Lucas Marques, Jordan Maerz, and Jesse Keane for their assistance in the lab. The authors also acknowledge and thank NSERC, Queen’s University, and Dalhousie University for their financial support.
References
Abrate, S. 1997. “Localized impact on sandwich structures with laminated facings.” Appl. Mech. Rev. 50: 69–82. https://doi.org/10.1115/1.3101689.
Akil Hazizan, M., and W. J. Cantwell. 2002. “The low velocity impact response of foam-based sandwich structures.” Composites, Part B 33: 193–204. https://doi.org/10.1016/S1359-8368(02)00009-4.
Anderson, T., and E. Madenci. 2000. “Experimental investigation of low-velocity impact characteristics of sandwich composites.” Compos. Struct. 50: 239–247. https://doi.org/10.1016/S0263-8223(00)00098-2.
ASTM. 2014. Standard test method for tensile properties of plastics. ASTM D638. West Conshohocken, PA: ASTM.
ASTM. 2017. Standard test method for tensile properties of polymer matrix composite materials. ASTM D3039/D3039M. West Conshohocken, PA: ASTM.
ASTM. 2018a. Standard test method for in-plane shear response of polymer matrix composite materials by tensile test of a ±45° laminate. ASTM D3518/D3518M. West Conshohocken, PA: ASTM.
ASTM. 2018b. Standard test method for shear properties of sandwich core materials. ASTM C273/C273M. West Conshohocken, PA: ASTM.
Baley, C., A. Le Duigou, A. Bourmaud, and P. Davies. 2012. “Influence of drying on the mechanical behaviour of flax fibres and their unidirectional composites.” Composites, Part A 43: 1226–1233. https://doi.org/10.1016/j.compositesa.2012.03.005.
Bambach, M. R. 2017. “Compression strength of natural fibre composite plates and sections of flax, jute and hemp.” Thin-Walled Struct. 119: 103–113. https://doi.org/10.1016/j.tws.2017.05.034.
Bensadoun, F., K. A. M. Vallons, L. B. Lessard, I. Verpoest, and A. W. Van Vuure. 2016. “Fatigue behaviour assessment of flax-epoxy composites.” Composites, Part A 82: 253–266. https://doi.org/10.1016/j.compositesa.2015.11.003.
Besant, T., G. A. O. Davies, and D. Hitchings. 2001. “Finite element modelling of low velocity impact of composite sandwich panels.” Composites, Part A 32: 1189–1196. https://doi.org/10.1016/S1359-835X(01)00084-7.
Betts, D., P. Sadeghian, and A. Fam. 2018. “Experimental behavior and design-oriented analysis of sandwich beams with bio-based composite facings and foam cores.” J. Compos. Constr. 22: 1–12. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000856.
Betts, D., P. Sadeghian, and A. Fam. 2020a. “Experiments and nonlinear analysis of the impact behaviour of sandwich panels constructed with flax fibre-reinforced polymer faces and foam cores.” J. Sandwich Struct. Mater. 23: 3139–3163. https://doi.org/10.1177/1099636220925073.
Betts, D., P. Sadeghian, and A. Fam. 2023. “Finite-element modeling and experimental verification of two-way sandwich panels made of natural fiber composites.” J. Compos. Constr. 27 (1): 04022101. https://doi.org/10.1061/JCCOF2.CCENG-3897.
Betts, D., P. Sadeghian, and A. Fam. 2021. “Post-impact residual strength and resilience of sandwich panels with natural fiber composite faces.” J. Build. Eng. 38: 102184. https://doi.org/10.1016/j.jobe.2021.102184.
Betts, D., P. Sadeghian, and A. Fam. 2020b. “Structural behavior of sandwich beams with flax fiber-reinforced polymer faces and cardboard cores under monotonic and impact loads.” J. Archit. Eng. 26: 1–12. https://doi.org/10.1061/(ASCE)AE.1943-5568.0000409.
Christian, S. J., and S. L. Billington. 2011. “Mechanical response of PHB- and cellulose acetate natural fiber-reinforced composites for construction applications.” Composites, Part B 42: 1920–1928. https://doi.org/10.1016/j.compositesb.2011.05.039.
Cicala, G., G. Cristaldi, G. Recca, and A. Latteri. 2010. “Composites based on natural fibre fabrics.” In Woven fabric engineering, edited by P. D. Dubrovski, 317–342 London: IntechOpen.
CoDyre, L., K. Mak, and A. Fam. 2018. “Flexural and axial behaviour of sandwich panels with bio-based flax fibre-reinforced polymer skins and various foam core densities.” J. Sandwich Struct. Mater. 20: 595–616. https://doi.org/10.1177/1099636216667658.
Dai, J., and H. T. Hahn. 2003. “Flexural behavior of sandwich beams fabricated by vacuum-assisted resin transfer molding.” Compos. Struct. 61: 247–253. https://doi.org/10.1016/S0263-8223(03)00040-0.
Daniel, I. M., J. L. Abot, P. M. Schubel, and J.-J. Luo. 2012. “Response and damage tolerance of composite sandwich structures under low velocity impact.” Exp. Mech. 52: 37–47. https://doi.org/10.1007/s11340-011-9479-y.
Dawood, M., E. Taylor, and S. Rizkalla. 2010. “Two-way bending behavior of 3-D GFRP sandwich panels with through-thickness fiber insertions.” Compos. Struct. 92: 950–963. https://doi.org/10.1016/j.compstruct.2009.09.040.
Dynamore. 2018. Guideline for implicit analyses using LS-DYNA, 1–87. Livermore, CA: Livermore Software Technology Corporation.
Fam, A., and T. Sharaf. 2010. “Flexural performance of sandwich panels comprising polyurethane core and GFRP skins and ribs of various configurations.” Compos. Struct. 92: 2927–2935. https://doi.org/10.1016/j.compstruct.2010.05.004.
Fu, Y., and P. Sadeghian. 2020. “Flexural and shear characteristics of bio-based sandwich beams made of hollow and foam-filled paper honeycomb cores and flax fiber composite skins.” Thin-Walled Struct. 153: 106834. https://doi.org/10.1016/j.tws.2020.106834.
Gupta, N., E. Woldesenbet, Kishore, and S. Sankaran. 2002. “Response of syntactic foam core sandwich structured composites to three-point bending.” J. Sandwich Struct. Mater. 4: 249–272. https://doi.org/10.1106/109963602024140.
Hristozov, D., L. Wroblewski, and P. Sadeghian. 2016. “Long-term tensile properties of natural fibre-reinforced polymer composites: Comparison of flax and glass fibres.” Composites, Part B 95: 82–95. https://doi.org/10.1016/j.compositesb.2016.03.079.
Huo, R., W. Liu, L. Wan, Y. Fang, and L. Wang. 2015. “Experimental study on sandwich bridge decks with GFRP face sheets and a foam-web core loaded under two-way bending.” Adv. Mater. Sci. Eng. 2015: 1–12. https://doi.org/10.1155/2015/434721.
Mak, K., and A. Fam. 2019. “Freeze–thaw cycling effect on tensile properties of unidirectional flax fiber reinforced polymers.” Composites, Part B 174: 106960. https://doi.org/10.1016/j.compositesb.2019.106960.
Mak, K., A. Fam, and C. Macdougall. 2015. “Flexural behavior of sandwich panels with bio-FRP skins made of flax fibers and epoxidized pine-oil resin.” J. Compos. Constr. 19: 1–13. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000560.
Manalo, A., S. Surendar, G. van Erp, and B. Benmokrane. 2016. “Flexural behavior of an FRP sandwich system with glass-fiber skins and a phenolic core at elevated in-service temperature.” Compos. Struct. 152: 96–105. https://doi.org/10.1016/j.compstruct.2016.05.028.
Manalo, A. C., T. Aravinthan, W. Karunasena, and M. M. Islam. 2010. “Flexural behaviour of structural fibre composite sandwich beams in flatwise and edgewise positions.” Compos. Struct. 92: 984–995. https://doi.org/10.1016/j.compstruct.2009.09.046.
McCracken, A., and P. Sadeghian. 2018. “Corrugated cardboard core sandwich beams with bio-based flax fiber composite skins.” J. Build. Eng. 20: 114–122. https://doi.org/10.1016/j.jobe.2018.07.009.
Nemes, J. A., and K. E. Simmonds. 1992. “Low-velocity impact response of foam-core sandwich composites.” J. Compos. Mater. 26: 500–519. https://doi.org/10.1177/002199839202600403.
Petras, A., and M. P. F. Sutcliffe. 1999. “Failure mode maps for honeycomb sandwich panels.” Compos. Struct. 44: 237–252. https://doi.org/10.1016/S0263-8223(98)00123-8.
Qi, Y., H. Fang, and W. Liu. 2016. “Experimental study of the bending properties and deformation analysis of web-reinforced composite sandwich floor slabs with four simply supported edges.” PLoS One 11: e0149103. https://doi.org/10.1371/journal.pone.0149103.
Ramesh, M., K. Palanikumar, and K. H. Reddy. 2017. “Plant fibre based bio-composites: Sustainable and renewable green materials.” Renewable Sustainable Energy Rev. 79: 558–584. https://doi.org/10.1016/j.rser.2017.05.094.
Sadeghian, P., D. Hristozov, and L. Wroblewski. 2018. “Experimental and analytical behavior of sandwich composite beams: Comparison of natural and synthetic materials.” J. Sandwich Struct. Mater. 20: 287–307. https://doi.org/10.1177/1099636216649891.
Satasivam, S., Y. Bai, Y. Yang, L. Zhu, and X.-L. Zhao. 2018. “Mechanical performance of two-way modular FRP sandwich slabs.” Compos. Struct. 184: 904–916. https://doi.org/10.1016/j.compstruct.2017.10.026.
Schubel, P. M., J.-J. Luo, and I. M. Daniel. 2005. “Low velocity impact behavior of composite sandwich panels.” Composites, Part A 36: 1389–1396. https://doi.org/10.1016/j.compositesa.2004.11.014.
Selver, E., H. Dalfi, and Z. Yousaf. 2022. “Investigation of the impact and post-impact behaviour of glass and glass/natural fibre hybrid composites made with various stacking sequences: Experimental and theoretical analysis.” J. Ind. Text. 51 (8): 1264–1294. https://doi.org/10.1177/1528083719900670.
Sharaf, T., W. Shawkat, and A. Fam. 2010. “Structural performance of sandwich wall panels with different foam core densities in one-way bending.” J. Compos. Mater. 44: 2249–2263. https://doi.org/10.1177/0021998310369577.
Sparnins, E. 2006. Mechanical properties of flax fibers and their composites. Luleå, Sweden: Lulea Univ. of Technology.
Torre, L., and J. M. Kenny. 2000. “Impact testing and simulation of composite sandwich structures for civil transportation.” Compos. Struct. 50: 257–267. https://doi.org/10.1016/S0263-8223(00)00101-X.
Yan, L., B. Kasal, and L. Huang. 2016. “A review of recent research on the use of cellulosic fibres, their fibre fabric reinforced cementitious, geo-polymer and polymer composites in civil engineering.” Composites, Part B 92: 94–132. https://doi.org/10.1016/j.compositesb.2016.02.002.
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© 2023 American Society of Civil Engineers.
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Received: May 17, 2023
Accepted: Oct 23, 2023
Published online: Dec 11, 2023
Published in print: Feb 1, 2024
Discussion open until: May 11, 2024
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