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Journal of Applied Sciences
  Year: 2008 | Volume: 8 | Issue: 18 | Page No.: 3129-3138
DOI: 10.3923/jas.2008.3129.3138
 
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Cyclic Strain Accumulation of Plain Stainless Steel Pressurized Cylinders Subjected to Dynamic Bending Moment

M. Zehsaz, S.J. Zakavi, H. Mahbadi and M.R. Eslami

Abstract:
A series of 6 tests have been conducted using cylindrical specimens having mean diameter/thickness ratios in the range 8≤Dm/t≤28. Each cylinder is pressurized up to its calculated design pressure and is loaded with an alternative bending moment at frequencies typical of seismic events simultaneously. Ratchetting of the cylinder wall has been observed and recorded in the hoop direction. A finite element analysis with the nonlinear isotropic/kinematic (combined) hardening model has been used to evaluate ratchetting behavior of the cylinder under mentioned loading condition. The finite element results are compared with those obtained from experimental set-up. The results show that initial the rate of ratchetting is large and then it decreases with the increasing of cycles. The results also show that the FE method and analytical solutions give over estimated values comparing with the experimental data.
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  •    The Effect of Frequency on the Cyclic Strain Accumulation of Plain Stainless Steel Pressurized Cylinders Subjected to Dynamic Bending Moment
How to cite this article:

M. Zehsaz, S.J. Zakavi, H. Mahbadi and M.R. Eslami, 2008. Cyclic Strain Accumulation of Plain Stainless Steel Pressurized Cylinders Subjected to Dynamic Bending Moment. Journal of Applied Sciences, 8: 3129-3138.

DOI: 10.3923/jas.2008.3129.3138

URL: https://scialert.net/abstract/?doi=jas.2008.3129.3138

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