Shin-ichi Suzuki

Dynamic response of circular plates subjected to transverse impulsive loads

SummaryThe behaviours of dynamical stresses acting in the circular plate subjected to transverse impulsive loads are investigated. The cases are treated where a rigid body with spring collides with the circular plate having a hole at its center along its inner edge. The relationships between dynamic load factors (D.L.F.) with respect to bending moments, solid viscosities and spring are obtained. Experiments are carried out and theoretical results are compared with experimental ones.ÜbersichtEs werden die dynamischen Spannungen untersucht, die in einer Kreisplatte durch stoßartige Querkräfte hervorgerufen werden. Es wird angenommen, daß ein mit Federn versehener starrer Körper so auf die mit einem konzentrischen Loch versehene Platte fällt, daß der Stoß am inneren Rande der Platte erfolgt. Es werden Beziehungen zwischen den dynamischen Belastungsfaktoren bezüglich der Biegemomente, den viskoelastischen Materialeigenschaften der Platte und den Federkonstanten abgeleitet. Die theoretischen Ergebnisse werden mit Versuchsergebnissen verglichen.

The Effects of Axial Forces to Dynamic Load Factors of the Beam Subjected to Transverse Impulsive Loads

The variations of dynamic load factors of a beam subjected to axial forces are investigated when transverse impulsive loads are applied. The relationships between constant axial forces P and dynamic load factors are obtained under various end conditions. Dynamic load factors are very different from 2. Because it is difficult to obtain an exact solution when P is a function of ξ (co-ordinate of axial direction), analyses are carried out by the energy method, where P is assumed to be in the form of (1–ξ m ).

Stress analysis of cemented lap joints

SummaryThe stress distribution of the thick plate containing a thin adhesive layer is investigated under arbitrarily distributed loads applied along the edges. Direct stress σx acting in the plate is assumed to be of the form

Dynamic behaviour of thin cylindrical shell rotating with high-speed

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Dynamic behaviour of the ring subjected to distributed impulsive load

, and the fundamental equations governing the plate are introduced using the variational principle of complementary energy. Lap joint is analysed by this method and the results are compared with those obtained by Goland and Reissner. From the results of the theoretical analysis, it became evident that a more accurate solution can easily be obtained by the present method, and that the effect of adhesive layer to tearing stress is considerably large.ÜbersichtUntersucht wird die Spannungsverteilung in einer dicken Platte, die eine dünne Klebeschicht enthält und längs der Ränder durch beliebig verteilte Randspannungen beansprucht wird. Für die Normal-Spannung σx in Dickenrichtung wird ein Ansatz der Form

Stress measurements in an infinite plate with a hole reinforced by different materials

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