BEM analysis of reduced dynamic stress concentration by multiple holes

✍ Scribed by Providakis, C. P. ;Sotiropoulos, D. A. ;Beskos, D. E.

• Publisher: John Wiley and Sons
• Year: 1993
• Tongue: English
• Weight: 463 KB
• Volume: 9
• Category: Article
• ISSN: 1069-8299
• DOI: 10.1002/cnm.1640091108

✦ Synopsis

The reduction of stress concentration around a circular hole in a dynamically loaded plate by introducing auxiliary holes around the original hole is studied numerically. The solution of this plane stress problem is carried out in the Laplace transformed domain with the aid of the boundary-element method, and subsequently the time domain response is obtained by numerically inverting the transformed solution. Numerical examples are presented which demonstrate a stress reduction as high as 18 per pent by the introduction of two auxiliary holes in the loading direction for the uniaxial case.