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|Importance of rigid-body motions on a single-degree-of-freedom model
|United States. Defense Nuclear Agency.
Hall, Robert L.
|Rigid body motion
|Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
|Technical report (U.S. Army Engineer Waterways Experiment Station) ; SL-87-27.
Abstract: The study presents the effect of rigid-body motion on the single-degree-of-freedom (SDOF) model presently used for dynamic analyses of buried roof slabs. The effect of rigid-body motion is incorporated by adding a second degree of freedom to the model. Relative displacements between the roof and the structure are given for comparison. The results indicate that at overpressures required to cause severe damage to a relatively hard, shallow-buried structure, rigid-body motion will have little effect on the damage predicted from an SDOF analysis.
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