SYMPOSIA PAPER Published: 01 January 1999

A Simple Theory for Describing the Transition Between Tensile and Shear Mechanisms in Mode I, II, III, and Mixed-Mode Fracture


Fracture of solids containing a crack is interpreted using basic material data such as the fracture stress in tension, σC, and the fracture stress in shear, τC, both being determined from simple laboratory tests. Mode I, II, III, and mixed-mode I/II cases are analyzed individually to confirm the proposed theory. It is shown that the transition of fracture mechanism from tensile to shear, as observed for ductile materials but not observed for brittle materials in many fracture tests, can be properly explained and predicted by incorporating a material strength ratio defined as τCC.

Author Information

Chao, Y-J
University of South Carolina, Columbia, SC
Zhu, X-K
University of South Carolina, Columbia, SC
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: 41–57
DOI: 10.1520/STP14242S
ISBN-EB: 978-0-8031-5406-3
ISBN-13: 978-0-8031-2602-2