Dynamic Force Measurement of Model Container to Centrifuge Nacelle Used in Centrifuge Model Explosion Test
The technique of centrifuge model test has been widely used in geotechnical mechanics and engineering because of its low cost and low test scale. In order to investigate the dynamic behaviors of the geotechnical model under explosion, we are developing an explosion geotechnical centrifuge. The dynamic environment of explosion is necessary to be determined for the strength design of the centrifuge nacelle. This paper presents the dynamic force measurement of the model container to the centrifuge nacelle under a typical explosion. Firstly, three cylindrical supports were designed and calibrated by quasi-static compressive tests. The force-strain relations are measured and linearly fitted. Secondly, an explosion test was performed and the dynamic strain histories of the supports were measured. Then the dynamic force histories were obtained combined with the calibration results. The investigation provides an understanding of the dynamic environment for the centrifuge nacelle design.
X. H. Yue et al., "Dynamic Force Measurement of Model Container to Centrifuge Nacelle Used in Centrifuge Model Explosion Test", Key Engineering Materials, Vols. 439-440, pp. 1393-1397, 2010