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Study Of Fracture Behaviour Of Composite Laminate With Central Circular Crack Exposed To Thermo-Mechanical Loading With Temperature Rise

V.V.Venu Madhav (), A.V.S.S.K.S. Gupta and P. Rakesh
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V.V.Venu Madhav: Department of Mechanical Engineering, V. R. Siddhartha Engineering College, Vijayawada, Andhra Pradesh-520007, India
A.V.S.S.K.S. Gupta: Department of Mechanical Engineering, JNTU College of Engineering, Hyderabad, Telengana-500085, India.
P. Rakesh: Sr. Engineer, DesignTech Systems Lt d., APCOE, VRSEC, Andhra Pradesh-520007, India

Journal of Mechanical Engineering Research & Developments (JMERD), 2019, vol. 42, issue 3, 125-132

Abstract: There is an increased usage of advanced composite structures due to several inherent benefits that they offer in comparison with the monolithic materials. But the application of these materials is being limited by the fact that the knowledge about the crack propagation and strength behaviour under application of loads and environmental conditions is not extensive. So, undertaking research in this direction is still very much important. In this paper, a circular crack which is present in the middle of a composite laminate was modelled and then subjected to temperature loading and combined (temperature + pressure) loading conditions where the temperature is considered to be rising and the pressure remains constant to study the fracture behaviour. The fracture behaviour of the composite laminate is studied using the strain energy release rate (SERR) value calculated using Virtual Crack Closure Technique (VCCT). The effect of temperature rise, fiber angle and the combined Thermo-Mechanical loading conditions on the SERR value in the 3 different modes of fracture with a circular crack located in the middle of the composite laminate is studied and the influence of these parameters are discussed in this paper.

Keywords: Strain Energy Release Rate (SERR); Circular Edge Crack; Virtual Crack Closure Technique (VCCT); Thermomechanical Loading; Fracture behaviour; Finite Element Analysis (FEA)Journal: Journal of Mechanical Engineering Research and Developments (JMERD) (search for similar items in EconPapers)
Date: 2019
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DOI: 10.26480/jmerd.03.2019.125.132

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Journal of Mechanical Engineering Research & Developments (JMERD) is currently edited by Distinguished Prof. T M Indra Mahlia

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