Kalidas V.
Name : Kalidas V.
Designation : Cad Engineer
Qualification: Master
of Engineering (CAD/CAM)
ME Dissertation Project
(2006):
“Stress Intensity Factor for radial cracks around
cylinders subjected to axial loading- A
Parametric study using Boundary Element Method”
Internal (University) Guide: Mr. R. Ganesh Kumar
Synopsis:
Fail
safe or damaged tolerant design is assuming greater importance in the present
day engineering design and development practice particularly in aircraft,
spacecraft, marine and automotive industries. The important fracture mechanics
parameters required to used in damaged tolerant design are, Stress Intensity
Factor (SIF) in case of brittle fracture dealt by linear fracture mechanics
(LEFM) and j-integrals in case of ductile fracture analyzed by Elasto Plastic
Fracture Mechanics (EPFM).
Cylindrical
structures of common occurrence in engineering design. Radial cracks may
gradually develop in these cylindrical structures under prolonged service
conditions if they are subjected to dynamic axial loading. Hence, an estimation
of singular stress field around the radial crack and associated Stress
Intensity Factor (SIF) becomes imperative for a valid damage tolerant analysis
to ensure structural integrity and safety.
In contrast to Finite Element Technique, the
Boundary Element Method provides more accurate results to elasto-static
problems because of their ability to exactly satisfy the free boundary
conditions and infinite domain modeling capabilities. Further, the order of the
problem is reduced in such a way that the computational effort is reduced
without compensating the accuracy. The Boundary Element Analysis will be
carried out using a classical code compiled from the source code with the
associated subroutines. The main aim of the project work is to analyze the
singular stress field and to evaluate the Stress Intensity Factor for radial
crack around cylinder using Boundary Element Method.
Key Words: Radial crack, Stress Intensity Factor, Boundary Element Method
Contact Details:
No.10,
Panamarathupatti (P.O.),
Phone : 91-0427
2428006
E-mail: dasvelu83@yahoo.co.in
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