Dynamic Stress Analysis of a Three-Dimensional Solid Body (Dynamic Stress Concentration Factor around a Cavity)

  • Masakatsu Sugiura
  • Masaichiro Seika

Abstract

The reflection and interference of stress-waves play important roles in dynamic cases.It is very desirable to study the value of dynamic stress concentration factors, in three-dimensional solid bodies.Hence,we have analyzed the stress propagation and the dynamic strèss 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 factor obtained by the present three methodsare all near the static stress concentration factors already reported for similar specimen geometries.

Keywords

Test Model Stress Wave Stress Change Dynamic Stress Stress Concentration Factor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. (1).
    Atsumi,A.,“Stresses in a Circular Cylinder Having an Infinite Row of Spherical Cavities Under Tension”,Trans,ASME,Ser.E,27-1(1960),87–92.Google Scholar
  2. (2).
    Ling,C.B.,“Stresses in a Circular Cylinder Having a Spherical Cavity under Tension”,Q.Q.Appl.Math.,13-4(1956),381–391.Google Scholar
  3. (3).
    Hui-Pih.,“Three-dimension Photoelastic Investigations of Circular Cylinders with Spherical Cavities in Axial Loading”, Exp.Mech., 5-3(1965),90–96.Google Scholar
  4. (4).
    Tanimura,S., “Analysis of Stress wave in a semi-infinite elastic/viscoplastic body having a spherical cavity”, Trans JSME.,(in Japanese),48-434 A(1982),1281–1290.Google Scholar

Copyright information

© Elsevier Science Publishers Ltd 1990

Authors and Affiliations

  • Masakatsu Sugiura
    • 1
  • Masaichiro Seika
    • 1
  1. 1.Department of Mechanical EngineeringDaido Institute of TechnologyNagoyaJapan

Personalised recommendations