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Analysis of dynamic stress intensity factors of thick-walled cylinder under internal impulsive pressure

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Abstract

Dynamic stress intensity factors are evaluated for thick-walled cylinder with a radial edge crack under internal impulsive pressure. Firstly, the equation for stress intensity factors under static uniform pressure is used as the reference case, and then the weight function for a thick-walled cylinder containing a radial edge crack can be worked out. Secondly, the dynamic stresses in uncracked thick-walled cylinders are solved under internal impulsive pressure by using mode shape function method. The solution consists of a quasi-static solution satisfying inhomogeneous boundary conditions and a dynamic solution satisfying homogeneous boundary conditions, and the history and distribution of dynamic stresses in thick-walled cylinders are derived in terms of Fourier–Bessel series. Finally, the dynamic stress intensity factor equations for thick-walled cylinder containing a radial edge crack subjected to internal impulsive pressure are given by dynamic weight function method. The finite element method is utilized to verify the results of numerical examples, showing the validity and feasibility of the proposed method.

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Authors and Affiliations

  1. School of Sciences, Nanjing University of Science and Technology, 210094, Nanjing, China

    Aijun Chen & Dingguo Zhang

  2. Shenyang Aero-engine Research Institute, 110015, Shenyang, China

    Lianfang Liao

Authors
  1. Aijun Chen
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  2. Lianfang Liao
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  3. Dingguo Zhang
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Correspondence to Aijun Chen.

Additional information

The project supported by the China Aviation Industry Corporation I Program (ATPD-1104-02).

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Chen, A., Liao, L. & Zhang, D. Analysis of dynamic stress intensity factors of thick-walled cylinder under internal impulsive pressure. Acta Mech Sin 25, 803–809 (2009). https://doi.org/10.1007/s10409-009-0297-8

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  • DOI: https://doi.org/10.1007/s10409-009-0297-8

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