Abstract
Composite T-stiffened skins widely used in aircraft industry nowadays were fabricated by using the co-curing, co-bonding and secondary bonding processes. The stiffener thickness and the tensile property of T-stiffened skins under tensile loading were performed as evaluation indexes to evaluate the manufacturing quality and mechanical property of T-stiffened skins, respectively. The results show that the better manufacturing quality and higher tensile property of T-stiffened skins are found in the co-bonding process, and the tensile property increases with the increase of the adhesive film thickness in the co-bonding process. The co-curing process provides a similar tensile property of the co-bonding process with 0.15 mm thickness adhesive film, but different failure modes in the stiffener/skin interface are found in co-curing and co-bonding processes. Moreover, the filler content and the filler type in the triangle filling area of T-stiffened skins also have significant influence on the tensile property of T-stiffened skins, and rolling adhesive films as fillers into the triangle filling area exhibits the highest tensile property in five kinds of fillers during the co-bonding process.
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References
Stickler, P.B., Ramulu, M., Johnson, P.S.: Experimental and numerical analysis of transverse stitched T-joints in bending. Compos. Struct. 50(1), 17–27 (2000)
Stickler, P.B., Ramulu, M.: Investigation of mechanical behavior of transverse stitched T-joints with PR520 resin in flexure and tension. Compos. Struct. 52(3–4), 307–314 (2001)
Ayensa, A., Oller, E., Beltarn, B., et al.: Influence of the flanges width and thickness on the shear strength of reinforced concrete beams with T-shaped cross section. Eng. Struct. 188, 506–518 (2019)
Tan, R.M., Guan, Z.D., Sun, W., et al.: Experiment investigation on impact damage and influences on compression behaviors of single T-stiffened composite panels. Compos. Struct. 203, 486–497 (2018)
Justo, J., Reinoso, J., Blazquez, A.: Experimental failure investigation of pull-off tests of single T-stiffened composite specimens. Compos. Struct. 177, 13–27 (2017)
Denis, D.R., Cartie, G.A., Emilie, P., et al.: 3D reinforcement of stiffener-to-skin T-joints by Z-pinning and tufting. Eng. Fract. Mech. 73(16), 2532–2540 (2006)
Vijayaraju, K., Mangalgiri, P.D., Dattaguru, B.: Experimental study of failure and failure progression in T-stiffened skins. Compos. Struct. 64(2), 227–234 (2004)
Huang C. K.: Study on co-cured composite panels with blade-shaped stiffeners. Composites, Part A Appl. Sci. Manuf. 34 (5), 403–410(2003).
Soden J. A., Weissenbach G., Hill B. J.: The desing and fabrication of 3D multi-layer woven T-section reinforcements. Composites, Part A Appl. Sci. Manuf. 30, 213–220(1999).
Li J, Sen J.: Analysis of frame to skin joint pull-off test and prediction of the delamination failure. In: 42nd AIAA/ASME/ASCE/AHS/ASC structures, structural dynamics and materials conference, Seattle, Washington, April 16–19, AIAA-2001–1484(2001).
Wang, X.M., Xie, F.Y., Lin, M., Zhang, Z.G.: Influence of tool assembly schemes and integral molding technologies on compaction of T-stiffened skins in autoclave process. J. Reinf. Plast. Compos. 29(9), 1311–1322 (2010a)
Lin, M., Wang, X.M., Xie, F.Y., Zhang, Z.G.: Influence of fillers in stiffener core and structural parameters on compaction of T-stiffened skins in autoclave process. Polym. Polym. Compos. 17(5), 273–280 (2009)
Wang, X.M., Xie, F.Y., Lin, M., Zhang, Z.G.: Influence of core fillers on resin flow and fiber compaction of cocured skin-to-stiffener structures. Polym. Compos. 31(8), 1360–1368 (2010b)
Wang, X.M., Xie, F.Y., Lin, M., Zhang, Z.G.: Correlated rules between complex structure of composite components and manufacturing defects in autoclave molding technology. J. Reinf. Plast. Compos. 28(22), 2791–2803 (2009)
Shi Q. H., Dai D., Cao Z. H.: Effect of adhesive on interlaminar stress of composite stiffened structure. Aernaut. Manuf. Technol. 52(6), 80–84(2009) (in Chinese).
Jiao G. Q., Yang B. N., Xu J. Y.: On better understanding of interlaminer toughness of interleaved CFRP composites. J. Nothwest Polytechnical Univ. 20(1), 6–9(2002) (in Chinese).
Sela, N., Ishai, O., Banks-Sills, L.: The effect of adhesive thickness interlaminar toughness of interleaved CFRP specimens. Compos. 20(3), 257–263 (1989)
Wang, X.M., Xie, F.Y., Lin, M., Zhang, Z.G.: Experimental investigation of the compaction and tensile strength of co-cured skin-to-stiffener structures. Appl. Compos. Mater. 18(5), 371–383 (2011)
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The authors acknowledge the support of the funding from AVIC Composite Corporation LTD (Grant No. GC731920301).
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Wang, X., Xie, F., Li, M. et al. Experimental Investigation on Performance Evaluation of Composite T-Stiffened Skins Fabricated by Integral Molding Technologies Under Tensile Loading. Appl Compos Mater 27, 795–809 (2020). https://doi.org/10.1007/s10443-020-09843-1
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DOI: https://doi.org/10.1007/s10443-020-09843-1