Volume 19, Issue 1 (2019)                   Modares Mechanical Engineering 2019, 19(1): 229-236 | Back to browse issues page

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Ghasemi A, Khabaz Kashani H. Analysis of Circular Hole and Thermal Cycle Effects on the Mechanical Properties in Multi-Layer Polymer Composite Reinforced with Nanoparticles. Modares Mechanical Engineering. 2019; 19 (1) :229-236
URL: http://journals.modares.ac.ir/article-15-18490-en.html
1- Solid Mechanics Department, Mechanical Engineering Faculty, University of Kashan, Kashan, Iran , ghasemi@kashanu.ac.ir
2- Solid Mechanics Department, Mechanical Engineering Faculty, University of Kashan, Kashan, Iran
Abstract:   (282 Views)
In this research, the analysis of the effects of circular hole and thermal cycle fatigue on the mechanical properties in multi-layer polymer composite reinforced with nanoparticles are investigated. First, multi-walled carbon nanotubes with 0.1% weight fraction of nanoparticles are added to the epoxy resin ML506. The. In order to homogenize particle in the resin, it is mixed with a magnetic stirrer for 30 minutes. The material is placed in an ultrasonic device for 40 minutes to homogenize the resin and nanoparticle completely. The resin reinforced with glass fibers constitute symmetric cross ply laminates stacking sequence [02/902]s, and nanocomposite samples are made with hand layup method. In this study, open-hole specimens with diameter of 2 and 4mm are investigated. To study the thermal cycles, nanocomposite samples of 3 levels of thermal cycles including 0, 180, and 360 cycles were investigated. The samples are exposed to a temperature range of 0 to 100oC. After that, the specimens undergo tensile testing. Using the tensile test, the modulus of elasticity and tensile strength are compared for the different thermal cycles and the diameter of the holes. By increasing the number of thermal cycles, the tensile strengths of nanocomposite samples are not significantly changed. Also, with increasing the diameter of the hole, the tensile strength is decreased. The elasticity modulus with increasing thermal cycles for all specimens have been minimal changes. Also, a linear regression model was developed, using MINITAB software for strength and elastic modulus in terms of number of thermal cycles and diameter to width ratio.
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Received: 2018/04/4 | Accepted: 2018/10/18 | Published: 2019/01/1

References
1. Vendroux G, Auberon M, Dessaut J. Cryogenic composite tanks: Structural analysis and manufacturing concepts. In: Society for the Advancement of Material and Process Engineering, contributor. SAMPE symposium and exhibition. Diamond Bar CA: Society for the Advancement of Material and Process Engineering; 1997. pp. 828-838. [Link]
2. Amatore D. First major X-33 component arrives. Aerospace Technology Innovation. 1998;6(2):13-14. [Link]
3. Shimokawa T, Katoh H, Hamaguchi Y, Sanbongi S, Mizuno H, Nakamura H, et al. Effect of thermal cycling on microcracking and strength degradation of high-temperature polymer composite materials for use in next-generation SST structures. Journal of Composite Materials. 2002;36(7):885-895. [Link] [DOI:10.1177/0021998302036007469]
4. Lee J, Soutis C. Measuring the notched compressive strength of composite laminates: Specimen size effects. Composites Science and Technology. 2008;68(12):2359-2366. [Link] [DOI:10.1016/j.compscitech.2007.09.003]
5. Shokrieh MM, Heidari Rarani M, Shakouri M, Kashizadeh E. Effects of thermal cycles on mechanical properties of an optimized polymer concrete. Construction and Building Materials. 2011;25(8):3540-3549. [Link] [DOI:10.1016/j.conbuildmat.2011.03.047]
6. Wang D, Zhou X, Ge H, Liu Z, Liu H, Sun K. The influence of thermal fatigue on the properties of glass fiber/epoxy composites. Polymers & Polymer Composites. 2012;20(1-2):129-132. [Link] [DOI:10.1177/0967391112020001-225]
7. Shokrieh MM, Daneshvar A, Akbari S. Reduction of thermal residual stresses of laminated polymer composites by addition of carbon nanotubes. Materials & Design. 2014;53:209-216. [Link] [DOI:10.1016/j.matdes.2013.07.007]
8. Ghasemi AR, Mohammadi MM, Moradi M. Investigation of mechanical and thermal properties of polymer composites reinforced by multi-walled carbon nanotube for reduction of residual stresses. Iranian Journal of Polymer Science and Technology. 2014;27(3):213-230. [Persian] [Link]
9. Genedy M, Daghash S, Soliman E, Reda Taha MM. Improving fatigue performance of GFRP composite using carbon nanotubes. Fibers. 2015;3(1):13-29. [Link] [DOI:10.3390/fib3010013]
10. Ghasemi AR, Moradi M. Effect of thermal cycling and open-hole size on mechanical properties of polymer matrix composites. Polymer Testing. 2017;59:20-28. [Link] [DOI:10.1016/j.polymertesting.2017.01.013]
11. Ghasemi AR, Moradi M. Surface degradation of polymer matrix composites under different low thermal cycling conditions. Journal of Solid Mechanics. 2017;9(1):54-62. [Link]
12. Braun PV. Natural nanobiocomposites, biomimetic nanocomposites, and biologically inspired nanocomposites. In: Ajayan PM, Schadler LS, Braun PV. Nanocomposite science and technology. Weinheim: Wiley-VCH; 2003. pp. 155-214. [Link] [DOI:10.1002/3527602127.ch3]
13. Ramamoorthi R, Sampath PS. Effect of water absorption on the mechanical properties of halloysite nanotube crammed glass fiber reinforced epoxy hybrid nanocomposites. International Journal of ChemTech Research. 2015;8(1):52-57. [Link]
14. Ghasemi AR, Mohammadi MM. Residual stress measurement of fiber metal laminates using incremental hole-drilling technique in consideration of the integral method. International Journal of Mechanical Sciences. 2016;114:246-256. [Link] [DOI:10.1016/j.ijmecsci.2016.05.025]
15. ASTM. ASTM D3039/D3039M-08: Standard test method for tensile properties of polymer matrix composite materials [Internet]. West Conshohocken PA: International; 2008 [cited 2018 April 1]. Available from: https://www.astm.org/DATABASE.CART/HISTORICAL/D3039D3039M-08.htm [Link]
16. Grammatikos SA, Jones RG, Evernden M, Correia JR. Thermal cycling effects on the durability of a pultruded GFRP material for off-shore civil engineering structures. Composite Structures. 2016;153:297-310. [Link] [DOI:10.1016/j.compstruct.2016.05.085]
17. Ghasemi AR, Moradi M. Low thermal cycling effects on mechanical properties of laminated composite materials. Mechanics of Materials. 2016;96:126-137. [Link] [DOI:10.1016/j.mechmat.2016.01.012]
18. Kim YK, Kwon H, Choi WJ, Woo CS, Park HS. Environmental considerations of plastic behaviors for automobile applications. Procedia Engineering. 2011;10:1029-1034. [Link] [DOI:10.1016/j.proeng.2011.04.169]
19. Afaghi Khatibi A, Ye L. Residual strength simulation of fibre reinforced metal laminates containing a circular hole. Journal of Composite Materials. 1997;31(19):1884-1904. [Link] [DOI:10.1177/002199839703101901]

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