Dynamic stress concentration in multi-cutouts-contained thin plates subjected to flexural waves

ZHAO Jia-xi; LIU Dian-kui; QI Hui; YANG Zai-lin

doi:10.11883/1001-1455(2008)06-0552-05

Volume 28 Issue 6

Sep. 2014

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ZHAO Jia-xi, LIU Dian-kui, QI Hui, YANG Zai-lin. Dynamic stress concentration in multi-cutouts-contained thin plates subjected to flexural waves[J]. Explosion And Shock Waves, 2008, 28(6): 552-556. doi: 10.11883/1001-1455(2008)06-0552-05

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ZHAO Jia-xi, LIU Dian-kui, QI Hui, YANG Zai-lin. Dynamic stress concentration in multi-cutouts-contained thin plates subjected to flexural waves[J]. Explosion And Shock Waves, 2008, 28(6): 552-556. doi: 10.11883/1001-1455(2008)06-0552-05

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Dynamic stress concentration in multi-cutouts-contained thin plates subjected to flexural waves

doi: 10.11883/1001-1455(2008)06-0552-05

1.
College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China

Publish Date: 2008-11-25

Abstract

Abstract

Scattering of flexural waves by multiple cutouts and dynamic stress concentration in the thin plates were investigated in terms of the complex variable function method and multi-polar coordinates. The expressions of function approach sequences and condition boundary for the general solution to this problem were proposed by deducing the bending motion equations of the plates. It was solved as a series of infinite algebraic equations by expanding the orthogonal functions. The dynamic moment factors of the plates with three circular cutouts were numerically presented, and the influences of paces between circular cutouts and wave number on dynamic stress distribution were analyzed.
- solid mechanics,
- dynamic stress concentration,
- complex variable function method,
- thin plates with multiple circular cutouts,
- multi-polar coordinates

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