Numerical Analysis of In-Plane Shear Strength on GFRP Composites under Adverse Thermal Ageing Condition
Chitra.P1, Saranya.S2, Manikandan.T3
1Ms .P.Chitra, UG Final Year Student, Department of Aeronautical Engineering, Jeppiaar Engineering College, Chennai, India.
2Ms. S.Saranya, UG Final Year Student, Department of Aeronautical Engineering, Jeppiaar Engineering College, Chennai, India.
3Mr. T.Manikandan, Assistant Professor, Department of Aeronautical Engineering, Jeppiaar Engineering College, Chennai, India.
Manuscript received on March 05, 2014. | Revised Manuscript Received on March 09, 2014. | Manuscript published on March 18, 2014. | PP: 19-24 | Volume-1, Issue-4, March 2014. | Retrieval Number: D0150031414
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Glass reinforced polymers are used in a wide variety of engineering applications and this occurrence continues. The exposure of composite structures to adverse environmental conditions during their service life period leads to degradation, which affects its material properties. The main objective of this paper is to determine the in-plane shear properties of uni-directional Glass/epoxy laminates when subjected to the various thermal conditions (Ambient, 253k, 343k). The in-plane shear properties of GFRP were studied by Iosipescu model, where the models were designed in various orientations (0 The Iosipescu model has been designed as per the specifications prescribed in the ASTM 5379. The design and analysis of a three dimensional finite element model were carried out using ABAQUS/CAE. Crack initiation and propagation has been achieved by eXtended Finite Element Method (XFEM). In plane shear failures for [0], [90] and [0/90] were observed. Graphs have been plotted for in-plane shear stresses and shear strains to interpret the behavior of material under various thermal ageing conditions. Among all the other material orientations, cross ply laminates at room temperature possess higher in-plane shear strength, exhibits significant variations on both thermal ageing conditions than 0° and 90° orientations. The failure mechanism of thermally exposed FEA model has done by the C3D8R stress distribution model.
Keywords: In-plane shear, Iosipescu shear test, Thermal Ageing, GFRP, ABACUS/CAE, (0°,90°,0/90°) orientation.