Torsional fracture of solid and hollow cylinders
Year: 2025
Type: article
Abstract: The fracture of solid and hollow cylinders subjected to torsion is examined using an incremental crack growth simulation procedure. Starting with small semi-elliptical surface cracks on the cylinder’s outer surface, successive fracture surfaces are generated using a mixed-mode crack growth criterion that eventually leads to the formation of a helical spiral crack in the cylinder. The differences between the fracture surfaces obtained for a solid cylinder and the fracture surfaces for hollow cylinders are examined in detail and compared with experimental tests. It is shown that a hollow cylinder with a long spiral crack will develop large circumferential tensile stresses on the inner radius of the cylinder, in a narrow region between the spiral crack fronts. These circumferential stresses cause the formation of secondary cracks that eventually split the hollow cylinder along a line parallel to cylinder’s axis.
Source: Engineering Fracture Mechanics
Authors: Haomin Fu, Herman F. Nied
Institution: Lehigh University
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,120
OpenAlex ID: W4416641764