Modelling by the Improved Quarter Point Crack Tip Element: Techniques of Evaluation

(*) Corresponding author

Authors' affiliations

DOI's assignment:
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)


The aim of this work is to estimate numerically the values of stress intensity factors using different techniques of evaluation of the stress intensity factors: extrapolation, the displacement correlation technique (DCT) and quarter point displacement technique (QPDT). The improved quarter point finite element (IQPE) was used at the crack tip to present the singularity near the crack tip. The results obtained are compared to reference solutions and show excellent agreement.
Copyright © 2020 Praise Worthy Prize - All rights reserved.


Extrapolation; DCT; QPDT; Fracture Mechanics; Singularity; Cracks; IQPE

Full Text:



E. K. Prashant. Elements of Fracture Mechanics. Tata McGraw-Hill, 2009.

K.Tribicam. Fundamentals of Fracture Mechanics. CRC Press, 2008.

S. Chan. On the finite element method in linear fracture mechanics. Engineering Fracture. Mechanics, 2, 1979, pp.1-17.

R. Barsoum. Application of quadratic isoperimetric finite elements in liner fracture mechanics. Int.J.Fract., 10, 1974 pp.603-605.

L. Gray, A. Phan. Improved quarter point crack tip element. Engineering fracture Mechanics, 70, 2003, pp. 269-283.

H. Tada, P. Paris. The Stress Analysis of Cracks Handbook. ASME Press, New York, 2000.


  • There are currently no refbacks.

Please send any question about this web site to
Copyright © 2005-2024 Praise Worthy Prize