Analytical/numerical solutions for a single hole-edge crack in a narrow plate under pure bending

✍ Scribed by S. Santhanam; J.N. Majerus; K.P. Jen; D.S. Karanth

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 904 KB
• Volume: 46
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(93)90125-c

✦ Synopsis

Ahslrae-The problem of a crack emanating from a hole in a plate has been widely studied. However, almost all studies to date assume the loading to be in the form of a uniform far-field tensile stress in the plane of the plate. This study examines the case of a far-field uniform bending moment acting on a finite plate/strip weakened by a crack emanating from the hole. Roth on-center and off-center holes are considered. Stress intensity factors are determined for a variety of geometries. These computations are performed both analytically and numerically @rite element method). These computations are compared with each other and with experimental results obtained from cold-drawn 2024-T3 aluminum alloy plates. Statistical variations in the experimental results are estimated by using replicated tests. 00 average, analytical values of the non-dimensional stress intensity factors arc 16% lower than the experimental values. There is also some deviation between the analytical and numerical results, and the reasons for these deviations are discussed in the paper.