Abstract
The behaviour of a shallow spherical shell resting on a no-tension foundation with concentrated load at its centre is investigated. Distribution of the displacement along the radial distance is determined for free, hinged and clamped edge conditions. This study reveals that the central deflection, as well as the radial distance at which the shell leaves the foundation, increases rapidly with increase in base circle radius in the beginning, but stabilizes gradually to limiting values. The central deflection varies linearly with load, but the distance of separation is found to be independent of the load at the centre and the radius of curvature of the shell. The central deflection and the distance of separation decrease very slightly with increase in the value of foundation modulus. Variation of the deflection with radial distance for various edge conditions is found to fall on the expected line.
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