The effect of face sheet thickening on the mechanical properties of sandwich structures reinforced with 3 D woven spacer fabrics having woven cross-links has been presented in this work. Spacer fabrics forming cells of rectangular (RECT), trapezoidal (TPZ) and triangular (TR) shapes were used as reinforcement of sandwich structures with non-thickened face sheets. While for thickened face sheet structures, additional layers of 2 D fabric were integrally woven with the top and bottom face sheets of spacer fabrics, having almost similar cell geometrical parameters as that of the former structures, in a single step of weaving. Composites manufactured from these structures were characterized for their out-of-plane compressive and flexural properties. The specific compressive load was observed to be lower for thickened face sheet structures. The flexural load was higher for thickened face sheet structures; but the specific bending load decreased for the same. Flexural stress was also found to decrease with thickening of the face sheets. The results obtained could be helpful in designing sandwich composites connected woven fabric cross-links with enhanced mechanical properties.
LascoupBAbouraZKhellilK, et al.
On the mechanical effect of stitch addition in sandwich panel. Compos Sci Technol2006;
66: 1385–1398.
6.
NanayakkaraAFeihSMouritzAP.Experimental analysis of the through-thickness compression properties of z-pinned sandwich composites. Compos Part A Appl Sci Manuf2011;
42: 1673–1680.
7.
WangBWuLJinX, et al.
Experimental investigation of 3D sandwich structure with core reinforced by composite columns. Mater Des2010;
31: 158–165.
8.
YalkinHEIctenBMAlpyildizT.Enhanced mechanical performance of foam core sandwich composites with through the thickness reinforced core. Compos Part B Eng2015;
79: 383–391.
9.
BelingardiGCavatortaMPDuellaR.Material characterization of a composite-foam sandwich for the front structure of a high speed train. Compos Struct2003;
61: 13–25.
10.
ZhangJSupernakPMueller-AlanderS, et al.
Improving the bending strength and energy absorption of corrugated sandwich composite structure. Mater Des2013;
52: 767–773.
11.
RejabMRMCantwellWJ.The mechanical behaviour of corrugated-core sandwich panels. Compos Part B Eng2013;
47: 267–277.
12.
TorreLKennyJM.Impact testing and simulation of composite sandwich structures for civil transportation. Compos Struct2000;
50: 257–267.
13.
LurieSASolyaevYOVolkov-BogorodskiyDB, et al.
Design of the corrugated-core sandwich panel for the arctic rescue vehicle. Compos Struct2017;
160: 1007–1019.
14.
HufenbachWAdamFFüßelR, et al.
Manufacturing and process-based property analysis of textile-reinforced thermoplastic spacer composites. Appl Compos Mater2012;
19: 839–851.
15.
TorunARMountasirAHoffmannG, et al.
Production principles and technological development of novel woven spacer preforms and integrated stiffener structures. Appl Compos Mater2013;
20: 275–285.
16.
AbounaimMHoffmannGDiestelO, et al.
Thermoplastic composite from innovative flat knitted 3D multi-layer spacer fabric using hybrid yarn and the study of 2D mechanical properties. Compos Sci Technol2010;
70: 363–370.
17.
HassanzadehSHasaniHZarrebiniM.Mechanical characterization of innovative 3D multi-cell thermoset composites produced with weft-knitted spacer fabrics. Compos Struct2018;
184: 935–949.
18.
MountasirAHoffmannGCherifC, et al.
Competitive manufacturing of 3D thermoplastic composite panels based on multi-layered woven structures for lightweight engineering. Compos Struct2015;
133: 415–424.
19.
Van VuureAWIvensJAVerpoestI.Mechanical properties of composite panels based on woven sandwich-fabric preforms. Compos Part A Appl Sci Manuf2000;
31: 671–680.
20.
VaidyaUKHosurMVEarlD, et al.
Impact response of integrated hollow core sandwich composite panels. Compos Part A Appl Sci Manuf2000;
31: 761–772.
21.
BrandtJDrechslerKArendtsFJ.Mechanical performance of composites based on various three-dimentional woven-fibre preforms. Compos Sci Technol1996;
56: 381–386.
22.
ZhaoCQLiDSGeTQ, et al.
Experimental study on the compression properties and failure mechanism of 3D integrated woven spacer composites. Mater Des2014;
56: 50–59.
23.
FanHZhouQYangW, et al.
An experiment study on the failure mechanisms of woven textile sandwich panels under quasi-static loading. Compos Part B Eng2010;
41: 686–692.
24.
FanHZhaoLChenH, et al.
Dynamic compression failure mechanisms and dynamic effects of integrated woven sandwich composites. J Compos Mater2014;
48: 427–437.
25.
KarahanMGülHIvensJ, et al.
Low velocity impact characteristics of 3D integrated core sandwich composites. Text Res J2012;
82: 945–962.
26.
HosseiniSASadighiMMoghadamRM.Low-velocity impact behavior of hollow core woven sandwich composite: experimental and numerical study. J Compos Mater2015;
49: 3285–3295.
27.
KarahanMGulHKarahanN, et al.
Static behavior of three-dimensional integrated core sandwich composites subjected to three-point bending. J Reinf Plast Compos2013;
32: 664–678.
28.
LiMWangSZhangZ, et al.
Effect of structure on the mechanical behaviors of three-dimensional spacer fabric composites. Appl Compos Mater2009;
16: 1–14.
29.
HosurMVAbdullahMJeelaniS.Manufacturing and low-velocity impact characterization of hollow integrated core sandwich composites with hybrid face sheets. Compos Struct2004;
65: 103–115.
30.
HosurMVAbdullahMJeelaniS.Dynamic compression behavior of integrated core sandwich composites. Mater Sci Eng A2007;
445-446: 54–64.
31.
LiDZhaoCJiangN, et al.
Fabrication, properties and failure of 3D integrated woven spacer composites with thickened face sheets. Mater Lett2015;
148: 103–105.
32.
LiDJiangNJiangL, et al.
Static and dynamic mechanical behavior of 3D integrated woven spacer composites with thickened face sheets. Fibers Polym2016;
17: 460–468.
33.
FanHChenHZhaoL, et al.
Flexural failure mechanisms of three-dimensional woven textile sandwich panels: Experiments. J Compos Mater2014;
48: 609–620.
34.
WangSLiMZhangZ, et al.
Properties of facesheet-reinforced 3-D spacer fabric composites and the integral multi-facesheet structures. J Reinf Plast Compos2010;
29: 793–806.
35.
McCrackenASadeghianP.Partial-composite behavior of sandwich beams composed of fiberglass facesheets and woven fabric core. Thin-Walled Struct2018;
131: 805–815.
36.
HamediSHasaniHDibajianSH.Numerical simulating the flexural properties of 3D weft-knitted spacer fabric reinforced composites. J Compos Mater2017;
51: 1887–1899.
37.
NejeGBeheraBK.Investigation of mechanical performance of 3D woven spacer sandwich composites with different cell geometries. Compos Part B Eng2019;
160: 306–314.
38.
NejeGBeheraBK.Lateral compressive properties of spacer fabric composites with different cell shapes. Appl Compos Mater2018;
25: 725–734.
39.
JinFChenHZhaoL, et al.
Failure mechanisms of sandwich composites with orthotropic integrated woven corrugated cores: Experiments. Compos Struct2013;
98: 53–58.
