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Experimental Investigation of Impact Damage Response of Sandwich Panels with Epoxy/woven-Fiberglass/nano-Silica Composite Face-sheets | ||
| Journal of Stress Analysis | ||
| دوره 5، شماره 1، آذر 2020، صفحه 57-67 اصل مقاله (4.18 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22084/jrstan.2020.20984.1129 | ||
| نویسندگان | ||
| M. Mahdipour Jalilian1؛ S. Feli* 2 | ||
| 1Department of Mechanical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran. | ||
| 2Department of Mechanical Engineering, Razi University, Kermanshah, Iran. | ||
| چکیده | ||
| In this paper by using the three-point bending and low velocity impact tests, the impact damage response of Polyurethane cored sandwich panels with hybrid nanocomposites face-sheets is investigated. The face-sheets are made of epoxy/woven-fiberglass/ nano-silica composite. Three-point bending test is used for determination of static threshold delamination force, and static and dynamic Interlaminar Shear Strength has been calculated. Furthermore, low velocity impact tests are performed on a sandwich panel and contact forces history, lateral deflection of the contact point and the absorbed energy of top face-sheets are obtained. The dynamic threshold delamination force has been used to predict the delamination damage mode in low velocity impact tests on sandwich panel. Finally, the delamination damage area is investigated theoretically and experimentally and the correction factor is associated with allowable shear stress is determined. Moreover, the effect of nano-silica particles on delaminations threshold forces, Interlaminar Shear Strengths, contact force, contact duration, deflection of contact point, energy absorption of top face-sheet and damage area caused by delamination is studied. | ||
| کلیدواژهها | ||
| Sandwich panel؛ Nano-silica؛ Low velocity impact؛ Interlaminar shear strength؛ Delamination threshold force | ||
| مراجع | ||
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[1] A. Azzam, W. Li, An experimental investigation on the three-point bending behavior of composite laminate, IOP Conference Series: Materials Science and Engineering, IOP Publishing, Ningbo, China, 62 (2014) 012016. [2] A. Farrokhabadi, S.A. Taghizadeh, H. Madadi, H. Norouzi, A. Ataei, Experimental and numerical analysis of novel multi-layer sandwich panels under three point bending load, Compos. Struct., 250 (2020) 112631. [3] Ł. Pyrzowski, B. Sobczyk, Local and global response of sandwich beams made of GFRP facings and PET foam core in three point bending test, Compos. Struct., 241 (2020) 112122. [4] T.S. Lim, C.S. Lee, D.G. Lee, Failure modes of foam core sandwich beams under static and impact loads, J. Compos. Mater., 38(18) (2004) 1639-1662. [5] F.J. Yang, W.J. Cantwell, Impact damage initiation in composite materials, Compos. Sci. Technol., 70(2) (2010) 336-342. [6] G. Minak, D. Ghelli, Influence of diameter and boundary conditions on low velocity impact response of CFRP circular laminated plates, Compos. B. Eng., 39(6) (2008) 962-972. [7] S. Zhu, G.B. Chai, Damage and failure mode maps of composite sandwich panel subjected to quasistatic indentation and low velocity impact, Compos. Struct., 101 (2013) 204-214. [8] F. Zhu, G. Lu, D. Ruan, Z. Wang, Plastic deformation, failure and energy absorption of sandwich structures with metallic cellular cores, Int. J. Prot. Struct., 1(4) (2010) 507-541. [9] X. Fan, I. Verpoest, D. Vandepitte, Finite element analysis of out-of-plane compressive properties of thermoplastic honeycomb, J. Sandwich Struct. Mater., (2005) 875-884. [10] S.R. Swanson, Limits of quasi-static solutions in impact of composite structures, Compos. Eng., 2(4) (1992) 261-267. [11] B.C. Ray, Effects of crosshead velocity and sub-zero temperature on mechanical behaviour of hygrothermally conditioned glass fibre reinforced epoxy composites, Mater. Sci. Eng. A, 379(1-2) (2004) 39-44. [12] S.R. Hallett, C. Ruiz, J. Harding, The effect of strain rate on the interlaminar shear strength of a carbon/epoxy cross-ply laminate: comparison between experiment and numerical prediction, Compos. Sci. Technol., 59(5) (1999) 749-758. [13] L.S. Sutherland, C.G. Soares, Contact indentation of marine composites, Compos. Struct., 70(3) (2005) 287-294. [14] P.M. Schubel, J.J. Luo, I.M. Daniel, Low velocity impact behavior of composite sandwich panels, Composites, Part A, 36(10) (2005) 1389-1396. [15] S. Feli, M.M Jalilian, Experimental and optimization of mechanical properties of epoxy/nanosilica and hybrid epoxy/fiberglass/nanosilica composites, J. Compos. Mater., 50(28) (2016) 3891-3903. [16] ASTM D7250/D7250M-20, Standard Practice for Determining Sandwich Beam Flexural and Shear Stiffness, ASTM International, West Conshohocken, PA, (2016). [17] G.B. Murri, E.G. Guynn, Analysis of delamination growth from matrix cracks in laminates subjected to bending loads, In Composite Materials: Testing and Design (Eighth Conference), ed. J. Whitcomb, West Conshonhocken, PA: ASTM International, (1988) 322-339. [18] S. Xiao, P. Chen, Q. Ye, Prediction of damage area in laminated composite plates subjected to low velocity impact, Compos. Sci. Technol., 98 (2014) 51-56. [19] E.M. Soliman, M.P. Sheyka, M.R. Taha, Lowvelocity impact of thin woven carbon fabric composites incorporating multi-walled carbon nanotubes, Int. J. Impact Eng., 47 (2012) 39-47. [20] G.A.O. Davies, X. Zhang, Impact damage prediction in carbon composite structures, Int. J. Impact Eng., 16(1) (1995) 149-170. | ||
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