SpringerLink - Journal Article

Deformation and the strip necking zone in a cracked steel sheet

Moiré method is used to measure the relative opening displacements between crack surfaces and between the upper and lower boundaries of the strip necking region as well as the strain near this region

Journal

Experimental Mechanics

Publisher

Springer Boston

ISSN

0014-4851 (Print) 1741-2765 (Online)

Issue

Volume 11, Number 4 / April, 1971

DOI

10.1007/BF02324909

Pages

172-175

Subject Collection

Engineering

SpringerLink Date

Saturday, February 18, 2006

Deformation and the strip necking zone in a cracked steel sheet

B. J. Schaeffer¹, H. W. Liu¹ and J. S. Ke¹
(1) Department of Chemical Engineering and Metallurgy, Syracuse University, 13210 Syracuse, N. Y.

Abstract When a tensile stress is applied to a thin cracked plate, a strip necking region results ahead of a crack tip. The relative opening displacement between the crack surfaces and between the upper and lower boundaries of the strip necking region were measured by the moiré method. The strains ahead of the strip necking region and the thickness reduction (therein) were also measured. The measured relative opening displacements were compared with the calculated values using the Dugdale strip necking model. The thickness reduction in the strip necking region is equal to the relative opening displacement.

This report was produced under contracts sponsored by AISI and NASA. The conclusions and recommendations expressed are those of the authors and are not necessarily endorsed by the sponsor.

Deformation and the strip necking zone in a cracked steel sheet

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