Dynamic Stress Analysis of a Three-Dimensional Solid Body : Dynamic Stress Concentration Factor around a Spherical Cavity in a Cylindrical bar

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概要

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• The reflection and interference of stress-waves play important roles in dynamic cases. It is very desirable to study the time variation of the stress distribution, and especially the value of dynamic stress concentration factors, in three-dimensional solid bodies. Hence, we have analyzed the stress propagation and the dynamic stress concentration phenomena around a spherical cavity in a cylindrical bar by utilizing the strain gage method, the dynamic photoelastic method and also the finite element method. Emphasis was laid on the dynamic stress concentration analysis of bodies with inner cavities such as those often found in welded parts or castings. The simulation was achieved by using test models of composite specimen geometry in which a spherical cavity was introduced by a variation of the sandwich method. We found that the three-dimensional dynamic stress concentration factors obtained by the present three method are all near the static stress concentration factors already reported for similar specimen geometries.

• 大同工業大学の論文

著者

• SUGIURA Masakatsu

  大同工業大学

• Takagi Yutaka

  大同工業大学

関連論文

• Stress Analysis of Three Dimensional Solid Bodies by Finite Element Method : Second Report; Stress Analysis of an Infinite Plate with an Oblique Circular Hole
• Dynamic Stress Analysis of a Three-Dimensional Solid Body : Dynamic Stress Concentration Factor around a Spherical Cavity in a Cylindrical bar

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