This study deals with free vibration analysis of integrated and non-integrated corrugated core sandwich panels with rectangular core together with free vibration analysis of integrated corrugated core sandwich panels with hat-type and triangle core. Bonding of the core to skin in non-integrated sandwich panels was achieved by resin, while in the integrated sandwich panels that were reinforced with 3-D weft-knitted fabric bonding was achieved using yarns and resin. Results revealed that the integrated structures have higher natural frequency than the non-integrated structures. It was also found that the natural frequency of the triangular-core sandwich panels and the rectangular-core sandwich panels was the highest and the lowest, respectively. It was established that weft-knitting fabric technology is suitable for the production of both integrated and non-integrated corrugated core sandwich panels with a high degree of similarities in terms of geometry, weight, and characteristics.
RejabMRMCantwellWJ.The mechanical behavior of corrugated-core sandwich panels. Composites Part B2013;
47: 267–277.
2.
BoorleRK.Bending, vibration and vibro-acoustic analysis of composite sandwich plates with corrugated core. PhD Thesis, University of Michigan-Dearborn, Michigan, 2014.
3.
ShrigandhiGDDeshmukhP.Modal analysis of composite sandwich panel. Int J Curr Eng Technol2016; Special Issue 4: 259–264.
KarahanMKarahanNGul1H, et al.
Quasi-static behavior of three dimensional integrated core sandwich composites under compression loading. J Reinf Plast Compos2012;
32: 289–299.
9.
WangSLiMZhangZ, et al.
Properties of face sheet reinforced 3-D spacer fabric composites and the integral multi-face sheet structures. J Reinf Plast Compos2010;
29: 793–806.
10.
WangBWuLJinX, et al.
Experimental investigation of 3D sandwich structure with core reinforced by composite columns. Mater Des2010;
31: 158–165.
11.
BogdanovichAE. Advancements in manufacturing and applications of 3-D woven preforms and composites. In: International conferences on composite materials (ICCM-16), Kyoto, 2007.
12.
QuinnJPMcIlhaggerATMcIlhaggerR.Examination of the failure of 3D woven composites. Composites Part A2008;
39: 273–283.
13.
BrandtJDrechslerKMohamedM, et al. Manufacture and performance of carbon/epoxy 3-D woven composites. In: 37th international SAMPE symposium, Anaheim, CA, 1992.
14.
LomovSVBogdanovichAEIvanovDS, et al.
A comparative study of tensile properties of non-crimp 3D orthogonal weave and multi-layer plain weave E-glass composites, part 1: materials, methods and principal results. Composites Part A2009;
40: 1134–1143.
15.
IvanovDSLomovSVBogdanovichAE, et al.
A comparative study of tensile properties of non-crimp 3D orthogonal weave and multi-layer plain weave E-glass composites, part 2: comprehensive experimental results. Composites Part A2009;
40: 1144–1157.
16.
LiuQZhaoY. A parametric study on natural frequency of sandwich panel using refined shear model. In: ASME, engineering technology conference on energy, Parts A and B, Houston, 4–5 February 2002, pp.535–540.
ChandrashekharaKKrisnamurthyKRoyS.Free vibration of composite beams including rotary inertia and shear deformation. Compos Struct1990;
14: 269–279.
19.
LiuQZhaoY.Prediction of natural frequencies of a sandwich panel using thick plate theory. J Sandwich Struct Mater2001;
3: 289–309.
20.
ChengQHLeeHPLuC.A numerical analysis approach for evaluating elastic constants of sandwich structures with various cores. Compos Struct2006;
74: 226–236.
21.
PrustyBG.Free vibration and buckling response of hat-stiffened composite panels under general loading. Int J Mech Sci2008;
50: 1326–1333.
22.
HassanzadehSHasaniHZarrebiniM.Thermoset composites reinforced by innovative 3D spacer weft knitted fabrics with different cross-section profiles. Composites Part A2016;
91: 65–76.
23.
HassanzadehSHasaniHZarrebiniM.Mechanical characterization of innovative 3D multi-cell thermoset composites produced with weft-knitted spacer fabrics. Compos Struct2018;
184: 935–949.
24.
HassanzadehSHasaniHZarrebiniM. Compression load-carrying capacity of 3D-integrated weft-knitted spacer composites. J Sandwich Struct Mater 2017; 21(4): 1379–1405.
25.
HamediSHasaniHDibajianSH.Numerical simulating the flexural properties of 3D weft-knitted spacer fabric reinforced composites. J Compos Mater2017;
13: 1887–1899.
26.
ShMAjeliSHasaniH, et al.
Investigation into the curling behavior of single jersey weft-knitted fabrics and its prediction using neural network model. J Text Inst2013;
104: 550–561.
27.
ShekarchizadehNAbediMM and
Nedoushan RJ. Prediction of elastic behavior of plain weft-knitted composites. J Reinf Plast Compos2016;
35: 1613–1622.
28.
TuronACostaJDavilaCG, et al.
An engineering solution for mesh size effects in the simulation of delamination using cohesive zone models. Eng Fract Mech2007;
74: 1665–1682.
29.
CamanhoPPDavilaCGde MouraMF.Numerical simulation of mixed-mode progressive delamination in composite materials. J Compos Mater2003;
37: 1415–1438.
30.
KitaneYArefAJLeeGC.Static and fatigue testing of hybrid fiber-reinforced polymer-concrete bridge superstructure. J Compos Constr2004;
8: 182–190.
31.
ArefAJAlampalliS.Vibration characteristics of a fiber-reinforced polymer bridge superstructure. Compos Struct2001;
52: 467–474.
