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Dynamic response of a submerged hemispherical shell to earthquake motions
Author(s) -
Akkał Nuri
Publication year - 1978
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290060110
Subject(s) - heaviside step function , inviscid flow , shell (structure) , spherical shell , mechanics , compressibility , physics , hydroelasticity , structural engineering , classical mechanics , materials science , vibration , acoustics , engineering , mathematics , mathematical analysis , composite material
The dynamic response to ground motion of hemispherical shells in a fluid, medium is studied numerically. In the analysis, linear thin shell theory is used and the fluid is assumed to be compressible and inviscid. The effect of the duration of the ground motion on the dynamic response is studied using two forcing functions, one with a very short duration and the other in the form of a Heaviside function. As special cases, dynamic responses of the shell in vacuo and of a rigid hemisphere in the fluid medium are investigated. The results are valid also for a ring‐stiffened complete spherical shell accelerating in an acoustic medium.