AN EXPERIMENTAL STUDY INTO THE DYNAMIC BEHAVIOR OF HEMISPHERICAL SHELLS SUBJECTED TO EXTERNAL AND INTERNAL LOADING

An experimental investigation into the dynamic behavior of fully clamped hemispherical shells subjected to uniformly distributed external and internal impulsive loading is reported. The applied loads were sufficient to cause plastic flow of the material. The materials used were mild steel 1020 and aluminum 6061-Tl. The deflections of internally loaded specimens showed a linear variation with the initial velocity, while the deflections of the externally loaded specimens vary nonlinearly with velocity after a certain value of the latter; this may be useful in evaluating a "buckling threshold". The externally loaded specimens exhibited a number of modes of deformation in the meridional direction which is much less than the number of modes of deformation in the circumferential direction.

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Ocean Engineering, 77 Massachusetts Avenue
  Cambridge, MA  United States  02139
• Authors:
  • Romanos, P
• Publication Date: 1973-6

Subject/Index Terms

• TRT Terms: Buckling; Deformation; Dynamic loads; Plasticity; Shells (Structural forms)
• Old TRIS Terms: Plastic strength; Shell deformation; Spherical shells
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00048383
• Record Type: Publication
• Source Agency: Massachusetts Institute of Technology
• Report/Paper Numbers: MS Thesis
• Files: TRIS
• Created Date: Nov 14 1973 12:00AM