Dynamic stability of non-linear shells of revolution under consideration of the fluid
Current time: 11-13-2018, 05:00 PM
Users browsing this thread: 1 Guest(s)
Author: mybest
Last Post: mybest
Replies 0
Views 1175

Dynamic stability of non-linear shells of revolution under consideration of the fluid
Dynamic stability of non-linear shells of revolution under consideration of the fluid–soil–structure interaction

Author: W. Wunderlich, B. Schäpertöns, C. Temme | Size: 1 MB | Format: PDF | Quality: Original preprint | Publisher: Wiley, Journal International Journalfor Numerical Methods in Engineering | Year: 15 August 1994 | pages: 2679–2697

[Image: info.png]

The dynamic behaviour of liquid-filled shells of revolution is investigated considering the soil–structure interaction and the fluid–structure interaction, respectively. In the circumferential direction the loads and variables are approximated by Fourier series. The shell is modelled through shell ring elements including non-linear behaviour, coupled with isoparametric continuum ring elements and special infinite elements for the soil and isoparametric pressure ring elements for the fluid. Transient loadings like earthquake excitation and the non-linearities of the shell and the soil require an analysis in the time domain. To reduce the size of the problem, linear parts of the system are condensed by the substructure technique. The soil region is divided into two parts, a near field permitting non-linearities like plastification or uplifting of the shell, and a far field for the treatment of radiation of energy.

The boundary conditions for the shell footing have a strong influence on the distribution of the axial membrane forces and, hence, on the stability limit, which is mostly governed by plastic collapse and caused by the dynamically activated pressure acting on the tank wall. It is shown how the soil properties influence the dynamic stability of the shell under harmonic excitation and under realistic earthquake motion.

[Image: download.png]
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:


An Engineer must have a SIX sense
[-] The following 9 users say Thank You to mybest for this post:
  • lisine, ssobhan, warbeast, zrilek, malc, jcbv, kowheng, Dell_Brett, shadabg

Possibly Related Threads...
Thread Author Replies Views Last Post
A parametric study of linear and non-linear passively damped seismic isolation system TAFATNEB 0 1,116 08-28-2013, 11:45 AM
Dynamic stability of cracked columns; the stiffness reduction method asim99 0 1,246 05-11-2013, 07:06 PM
Last Post: asim99
Recent research advances on the dynamic analysis of composite shells: 2000–2009 asim99 0 1,206 04-19-2013, 07:13 PM
Last Post: asim99
Dynamic elastic-plastic buckling of circular cylindrical shells under axial impact asim99 0 1,211 04-19-2013, 07:11 PM
Last Post: asim99
A new energy and momentum conserving algorithm for the non-linear dynamics of shells asim99 0 1,080 04-19-2013, 06:33 PM
Last Post: asim99

Users browsing this thread: 1 Guest(s)