平行板プラストメーターの理論 : レオロジー一般

概要

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The parallel-plate plastometer is a simple and important instrument to investigate rheological behavior of matter. Especially, it is very useful for materials which have yield values. But there is only Scott's theory for this case and he made rather rough assumptions in the beginning of the calculation, so it is not sure whether the final result is reasonable or not. We have made calculation starting form the general equation of motion for the Bingham solid and obtained the relationship between the thickness of the specimen h and the time t when a constant force is applied perpendicular to the plates ; thus the area under compression is constant. Our final results (34) and (40) enable us to determine the yield value and the coefficient of plastic viscosity η. And our results reduces to the equations derived by Stefan and Healey when the yield value f is neglected.
社団法人日本材料学会の論文
1960-04-15