Delamination Behaviour of 220 & 600 GMCC Fiber Reinforced Composite with Epoxy Laminates Using DCB Method

Author(s):

J.MURUGESAN , PANIMALAR ENGINEERING COLLEGE; J.GUNASEKARAN, PANIMALAR ENGINEERING COLLEGE; K.NAVEEN, PANIMALAR ENGINEERING COLLEGE

Keywords:

Delamination, Opening mode I test, DCB, GIc

Abstract:

Fiber reinforced composites are less weight but withstand good strength which can be used in Aerospace, Aircraft, Marine & Defense application. Delamination of the laminates composites are one of the vital form of failure in laminated composites due to the lack of reinforcement in the thickness direction. Thus delamination behavior of studies is much importance before designing a composite material. This work concentrates on Mode I fracture which is the dominating of the three types. To study the Mode I failure, Double Cantilever Beam (DCB) test has been conducted in UTM machine for glass fiber reinforced. Composite laminates. Epoxy is used as the matrix. These laminates are manufactured by hand layup technique as per ASTM standard D 5528-01. The critical strain energy release rates (GIc) for the above laminates are calculated using the Modified Beam Theory (MBT) method. In this work, the strain energy release rate was calculated for two different densities like 600 GMCC and 220gmcc. Finite Element Analysis (FEA) of DCB test has been carried out using Ansys by including the cohesive zone model in the interface of crack propagation. The fracture toughness obtained by FEA. Nodal displacement obtained from FEA is used to calculate the GIc and compared with the experimental results. It is observed that the result of FEA closely matches with experimental results.

Other Details:

Manuscript Id	:	IJSTEV3I1131
Published in	:	Volume : 3, Issue : 1
Publication Date	:	01/08/2016
Page(s)	:	296-301

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