This dissertation presents an investigation in the energyabsorbing capacity of thin-walled metal inverbucktubesloaded in axial compression. It also presents theinversion-buckling(curling-buckling) behaviour achievedin both, quasi-static and dynamic loading conditions.In addition, for the first time, the experimental resultsof the pressure or normal stress distribution between theinside surface of the inverbucktube and die fillet radiusinterface are stipulated. These were very successful,using the pressure transducer method.Furthermore, a mathematical model has been developed,based on theory of plasticity and making use of energymethod. This predicts the amount of energy absorbed in theassumed seperate collapse processes. Results yielded fromthe theory, showed good agreement with the experimentalresults which had geometry factor within feasibilityboundaries of inverbuckling collapse (6.5 ( 5/2t,, ( 22.5).The successful prediction of energy absorbed,inverbuckling load and pressure distribution, not onlyproves the validity of the model, but also confirms thequality of the modelling approach proposed in thisdissertation. Using this mathematical model,inverbucktubes could be designed, developed and applied.
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