SYMPOSIA PAPER Published: 01 January 1985

The Dugdale Model for Compact Specimen


The purpose of this paper is to develop the Dugdale model for compact specimen. In particular, plastic-zone size and crack-tip-opening displacement (CTOD) equations are developed. Boundary-collocation analyses are used to analyze the compact specimen subjected to various loading conditions (pin loads, concentrated forces, and uniform pressure acting on the crack surface). Stress intensity factor and crack surface displacement equations for some of these loadings are developed and used to obtain the Dugdale model. The results from the equations for plastic-zone size and CTOD agreed well with numerical values calculated by Terada for crack-length-to-width ratios greater than 0.4.

Author Information

Mall, S
University of Missouri, Rolla, MO
Newman, JC
NASA-Langley Research Center, Hampton, VA
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: E08
Pages: 113–128
DOI: 10.1520/STP34249S
ISBN-EB: 978-0-8031-4933-5
ISBN-13: 978-0-8031-0225-5