IDL - International Digital Library Of Technology & Research Volume 1, Issue 6, June 2017
Available at: www.dbpublications.org
International e-Journal For Technology And Research-2017
ANALYSIS OF COMPOSITE LAMINATED PLATE USING FEM NETHRAVATHI C1 AND SREENIVASA M B2 1 2
PG SCHOLAR,STRUCTURAL ENGINEERING DEPARTMENT,V.T.U PG STUDIES,MYSURU,INDIA.
ASSISTANT PROFESSOR OF STRUCTURAL ENGINEERING DEPARTMENT,V.T.U PG STUDIES,MYSURU,INDIA.
Abstract: A numerical analysis using finite element method(FEM) has been carried out to study the buckling behavior of graphite/epoxy laminated composite plates subjected to inplane uniaxial and biaxial compression loadings .In the present study, the effect of aspect ratio, number of plies and fibre orientation on buckling behavior graphite/epoxy. The results shows that the buckling loads of a composite laminated plate subjected to inplane uniaxial compressive loading decreases by increasing the plate aspect ratio (β).It is seen that the number of plies,inplane loads and aspect ratio (β) have a substantial influence on buckling strength of composite laminated plate. Key words : buckling analysis,aspect ratio,boundary condition,number of plies,symmetrically laminated composite plate,uniaxial and biaxial compression loading.
principal structural materials used in early days .Thus Euler’s theory was not much used due to the bulkiness of the structural elements. Buckling property of many engineering structural elements under compressive loading has always been an important field of research.
1.INTRODUCTION The rapid development of technology in the field of “material science” has made structural components slender with less weight, superior specific strength and stiffness compared to conventional materials.These materials are widely used in many engineering applications like aerospace, spacecraft nuclear structures, offshore and marine structures. Many studies have showed that such structures fail not due to high stress but due to insufficient elastic stability of slender or thin walled members. This results made to focus more on the static stability and buckling characteristics of beam, column plate and shell type of structures. The ability of the structure to retain its equilibrium configuration under loading is termed as stability and when loading produces an abrupt change in shape of member it is termed as instability. About 200 years ago L. Euler a German scientist studied the first problem of elastic instability concerned to lateral buckling of compressed members. Wood and stone where the IDL - International Digital Library
Improvement in technology developed a combined structure by joining two or more different materials in macro level to meet the material requirement which is called as composite material. 1.1 Composite materials A composite material is one in which two or more materials are combined to form a single structure with an identifiable interface. Composite materials have many advantages over conventional materials in structural performance with their superior strength to weight ratios as well as stiffness to weight ratios. Laminated composites are widely used in aerospace, automobiles and marine 1|P a g e
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