Abstract
This article presents the results of an analysis of the mechanical properties of the AW8S-V polyester composite reinforced by a roving fabric under tensile loading. The stress-strain curves show an increase of the maximum stress and elastic modulus with increasing strain rate. By contrast, an increase of the temperature led to decrease of the maximum stress and elastic modulus. It is also shown that, failure mechanisms are dependent on the loading type. Shear cracks occurred in the specimens under quasi-static loading whereas composite layers damage was observed under dynamic loading. Temperature increase resulted to stronger fragmentation of the specimens.Keywords:
polyester composite, Hopkinson bar, high strain rate, damageReferences
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2. Obradovic J., Boria S., Belingardi G., Lightweight design and crash analysis of composite frontal impact energy absorbing structures, Compos. Struct., 94, 423–430, 2012.
3. Almohandes A.A., Abdel-Kader M.S., Eleiche A.M., Experimental investigation of the ballistic resistance of steel-fiberglass reinforced polyester laminated plates, Compos. Part B-Eng., 27, 447–458, 1996.
4. Buitrago B.L., Garc´ıa-Castillo S.K., Barbero E., Experimental analysis of perforation of glass/polyester structures subjected to high-velocity impact, Mater. Lett., 64, 1052–1054, 2010.
5. Shah Khan M.Z., Simpson G., Townsend C.R., A comparison of the mechanical properties in compression of two resin systems, Mater. Lett., 52, 173–179, 2002.
6. Kolsky H., An Investigation of the mechanical properties of materials at very high rates of deformation of loading, Proc. Phys. Soc., 62B, 647, 1949.
7. Moćko W., Kowalewski Z.L., Dynamic Compression Tests – Current Achievements and Future Development, Eng. Trans., 59, 235–248, 2011.
8. Moćko W., Kruszka L., Results of Strain Rate and Temperature on Mechanical Properties of Selected Structural Steels, Procedia Engineering, 57, 789–797, 2013.
9. Moćko W., Kowalewski Z.L., Application of FEM in the assessment of phenomena associated with dynamic investigations on a miniaturised DICT testing stand, Kovove Mater., 51, 71–82, 2013.
10. Moćko W., Rodr´ıguez-Mart´ınez J.A., Kowalewski Z.L., Rusinek A., Compressive viscoplastic response of 6082-T6 and 7075-T6 aluminium alloys under wide range of strain rate at room temperature: Experiments and modelling, Strain, 48, 498–509, 2012.
11. Moćko W., Kowalewski Z.L., Mechanical properties of the A359/SiCp metal matrix composite at wide range of strain rates, Appl. Mech. Mater., 82, 166–171, 2011.
12. Di Bella G., Calabrese L., Borsellino C., Mechanical characterization of a glass/polyester sandwich structure for marine applications, Mater. Design., 42, 486–494, 2012.
13. Sumelka W., Łodygowski T., The influence of the initial microdamage anisotropy on macrodamage mode during extremely fast thermomechanical processes, Arch. Appl. Mech., 81, 1973–1992, 2011.
14. Glema A., Łodygowski T., Sumelka W., Perzyna P., The numerical analysis of the intrinsic anisotropic microdamage evolution in elasto-viscoplastic solids, Int. J. Damage Mech., 18, 205–231, 2009.
15. Gieleta R., Kruszka L., Dynamic testing of reinforced glass fibre-epoxy composite at elevated temperatures, Strength Mater., 34, 238–241, 2002.
16. Mahmoudi N., Hebbar A., Zenasni R., Lousdad A., Effect of impact directions, fiber orientation, and temperature on composite material, J. Compos. Mater., 43, 1713–1727, 2009.
17. Wang W., Makarov G., Shenoi R.A., An analytical model for assessing strain rate sensitivity of unidirectional composite laminates, Compos. Struct., 69, 45–54, 2005.
18. Shokrieh M.M., Omidi M.J., Compressive response of glass-fiber reinforced polymeric composites to increasing compressive strain rates, Compos. Struct., 89, 517–523, 2009.
19. Thiruppukuzhi S.V., Sun C.T., Models for the strain-rate-dependent behaviour of polymer composites, Compos. Sci. Technol., 61, 1–12, 2001.
20. Thiruppukuzhi S.V., Sun C.T., Testing and modelling high strain rate behaviour of polymeric composites, Compos. Part B, 29B, 535–546, 1998.
21. Xia Y., Wang X., Constitutive equation for unidirectional composites under tensile impact, Compos. Sci. Technol., 56, 155–160, 1996.
22. Kara A., Tasdemirci A., Guden M., Modeling quasi-static and high strain rate deformation and failure behaviour of a (±45)symmetric E-glass/polyester composite under compressive loading, Mater. Design., 49, 566–574, 2013.
23. Shah Khan M.Z., Simpson G., Mechanical properties of a glass reinforced plastic naval composite material under increasing compressive strain rates, Mater. Lett., 45, 167–174, 2000.
