Short beam shear properties and failure modes of the wood-based X-type lattice sandwich structure

Abstract

A wood-based X-type lattice sandwich structure was manufactured by insertion-glue method. The birch was used as core, and Oriented Strand Board was used as panel of the sandwich structure. The short beam shear properties and the failure modes of the wood-based X-type lattice sandwich structure with different core direction (vertical and parallel), unit specification (120 mm × 60 mm and 60 mm × 60 mm), core size (50 mm and 60 mm), and drilling depth (9 mm and 12 mm) were investigated by a short beam shear test and the establishment of a theoretical model to study the equivalent shear modulus and deflection response of the X-type lattice sandwich structure. Results from the short beam shear test and the theoretical model showed that the failure modes of the wood-based X-type lattice sandwich structure were mainly the wrinkling and crushing of the panels under three-point bending load. The experimental values of deflection response of various type specimens were higher than the theoretical values of them. For the core direction of parallel, the smaller the unit specification is, the shorter the core size is, and the deeper the drilling depth is, the greater the short beam shear properties of the wood-based X-type lattice sandwich structure is.

Keywords

X-type / Lattice sandwich structure / Failure modes / Short beam shear properties / Theoretical model

References

[1] Deshpande VS, Fleck NA. Collapse of truss core sandwich beams in 3-point bending. Int J Solids Struct, 2001, 38: 6275-6305.

[2] Elias H, Ragnar J, Jaana K, Janne J, Marko M, Pekka L, Lauri H. Diversification of the forest industries: role of new wood-based products. Can J For Res, 2018, 48(12): 1417-1432.

[3] Evans AG, Hutchinson JW, Fleck NA, Ashby MF, Wadley HNG. The topological design of multifunctional cellular metals. Prog Mater Sci, 2001, 46: 309-327.

[4] Fam A, Sharaf T. Flexural performance of sandwich panels comprising polyurethane core and GFRP skins and ribs of various configurations. Compos Struct, 2010, 92: 2929-2935.

[5] Fan HL, Meng FH, Yang W. Mechanical behaviors and bending effects of carbon fiber reinforced lattice materials. Arch Appl Mech, 2006, 10–12: 635-647.

[6] Fan HL, Meng FH, Yang W. Sandwich panels with Kagome lattice cores reinforced by carbon fibers. Compos Struct, 2007, 4: 533-539.

[7] Hao MR, Hu YC, Wang B. Mechanical behavior of natural fiber-based isogrid lattice cylinder. Compos Struct, 2017, 176: 117-123.

[8] He M, Hu W. A study on composite honeycomb sandwich panel structure. Mater Des, 2008, 29: 709-713.

[9] Jin MM, Hu YC, Wang B. Compressive and bending behaviours of wood-based two-dimensional lattice truss core sandwich structures. Compos Struct, 2015, 124: 337-344.

[10] Katsigris E, Bull GQ, White A, Barr C, Barney K, Bun Y, Kahrl F, King T, Lankin A, Lebedev A, Shearman P, Sheingauz A, Yufang SU, Weyerhaeuser H. The China forest products trade: overview of Asia-Pacific supplying countries, impacts and implications. Int For Rev, 2004, 3–4: 237-253.

[11] Lee MG, Yoon JW, Han SM, Suh YS, Kang KJ. Bending response of sandwich panels with discontinuous wire-woven metal cores. Mater Des, 2014, 55: 707-717.

[12] Li XW, Hu YC. Luminescent films functionalized with cellulose nanofibrils/Cd Te quantum dots for anti-counterfeiting applications. Carbohydr Polym, 2019, 203: 167-175.

[13] Li S, Qin JK, Li CC, Feng YX, Zhao X, Hu YC. Optimization and compressive behavior of composite 2-D lattice structure. Mech Adv Mater Struct, 2018, 1: 1-10.

[14] Li S, Qin JK, Wang B, Zheng TT, Hu YC. Design and compressive behavior of a photosensitive resin-based 2-D lattice structure with variable cross-section core. Polymers, 2019, 11: 186.

[15] Li XH, Liu YZ, Yu YY, Chen WS, Liu YX, Yu HP. Nanoformulations of quercetin and cellulose nanofibers as healthcare supplements with sustained antioxidant activity. Carbohydr Polym, 2019, 207: 160-168.

[16] Lim CH, Jeon I, Kang KJ. A new type of sandwich panel with periodic cellular metal cores and its mechanical performances. Mater Des, 2009, 30: 3082-3093.

[17] Lou J, Ma L, Wu LZ. Free vibration analysis of composite tetrahedral lattice sandwich beam. J Solid Mech, 2011, 4(2): 339-345. (in China)

[18] Lu TJ, Liu SM, Jing M, Xu XL, Wang Y, Wang ZY, Gou J, Hui D, Zhou ZW. Effects of modifications of bamboo cellulose fibers on the improved mechanical properties of cellulose reinforced poly (lactic acid) composites. Compos Pt B Eng, 2014, 62: 191-197.

[19] Manalo AC. Behaviour of fibre composite sandwich structures under short and asymmetrical beam shear tests. Compos Struct, 2013, 99: 339-349.

[20] Manalo AC, Aravinthan T, Karunasena W. In-plane shear behaviour of fibre composite sandwich beams using asymmetrical beam shear test. Constr Build Mater, 2010, 24(10): 1952-1960.

[21] Marius C, Semiyou P, Edmond CA, Emmanuel O, Valerie D. Study of the implementation of waste wood, plastics and polystyrenes for various applications in the building industry. Constr Build Mater, 2018, 167: 936-941.

[22] Min X, Zhi C. Effects of different modifiers on the properties of wood-polymer composites. J For Res, 2004, 15(1): 77-79.

[23] Nguyen VD, Nguyen TT, Zhang AH, Hao JX, Wang WH. Effect of three tree species on UV weathering of wood flour-HDPE composites. J For Res, 2019, 53: 1-9.

[24] Qin JK, Li XW, Shao YL, Shi KX, Zhao X, Feng TS, Hu YC. Optimization of delignification process for efficient preparation of transparent wood with high strength and high transmittance. Vacuum, 2018, 158: 158-165.

[25] Qin JK, Zheng TT, Li S, Cheng YP, Xu QY, Ye GY, Hu YC. Core configuration and panel reinforcement affect compression properties of wood-based 2-D straight column lattice truss sandwich structure. Eur J Wood Wood Prod, 2019, 4: 1-8.

[26] Sideridis E, Papadopoulus GA. Short-beam and three-point-bending tests for the study of shear and flexural properties in unidirectional-fibre-reinforced epoxy composites. J Appl Polym Sci, 2004, 93: 63-74.

[27] Wang B, Zhang GQ, He QL, Ma L, Wu LZ, Feng JC. Mechanical behavior of carbon fiber reinforced polymer composite sandwich panels with 2-D lattice truss cores. Mater Des, 2014, 55: 591-596.

[28] Wang B, Hu J, Li Y, Yao Y, Wang SX, Ma L. Mechanical properties and failure behavior of the sandwich structures with carbon fiber-reinforced X-type lattice truss core. Compos Struct, 2018, 185: 619-633.

[29] Wang HG, Zhang JF, Fu HT, Wang WH, Wang QW. Effect of an antioxidant on the life cycle of wood flour/polypropylene composites. J For Res, 2019, 55: 1-9.

[30] Yuan FP, Ou RX, Xie YJ, Wang QW. Reinforcing effects of modified Kevlar^® fiber on the mechanical properties of wood-flour/polypropylene composites. J For Res, 2013, 24(1): 149-153.

[31] Zhang JF, Wang HG, Ou RX, Wang QW. The properties of flax fiber reinforced wood flour/high density polyethylene composites. J For Res, 2018, 29(2): 533-540.

[32] Zheng TT, Cheng YP, Li S, Zhang Y, Hu YC. Mechanical properties of the wood-based X-type lattice sandwich structure. BioResources, 2020, 15: 1927-1944.

[33] Zheng TT, Yan HZ, Li S, Cheng YP, Zou LX, Hu YC. Compressive behavior and failure modes of the wood-based double X-type lattice sandwich structure. J Buil Eng, 2020, 30: 101176.