鉛板の落下衝撃試験

抄録

This is the third report succeeding the fomer two, which were about the mathematical analysis of the behaviour of metal plate under the lateral impact. This report resumes and puts in order, the development and the results of the experiments carried out for several years for the orientation of the problem, to pursue the research. Every effort have been made to relate as precisely as possible the main subject of it in order. It is advocated that there is a good reason to regard especially lead (Pb) as the representative of the general metallic material, as far as the impact deformation is concerned. Therefore, the tension-strain relation S= K(1+ε) can be regarded as the base of motion of metal plate under lateral impact, because the results of the experiments agree in their profil form well with those of the theory which has been previousely constructed upon the same assumption. This is the present report, and after this, the more strict research has been carried out by considering ε-wave more precisely. In that case, the relation S=K(1+ε) becomes the 1st approximation formula. These will be reported next.