DYNAMIC RESPONSE OF A VISCOELASTIC CYLINDER WITH ABLATING INNER SURFACE.

Abstract

The effects of viscoelasticity and material ablation on the vibratory response of a long hollow cylinder are investigated. The cylinder is subjected to a time-dependent internal pressure. For step internal pressure, explicit solutions are presented for the circumferential stress at the eroding inner surface and for the displacement in radial direction. It is found that due to ablation, the instantaneous frequency decreases and the displacement amplitude increases. The increase in amplitude is counteracted by viscoelastic damping. In the analysis it is assumed that the material is incompressible in bulk and viscoelastic in shear according to the standard linear solid. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1965
Accession Number
AD0481014

Entities

People

  • Jan D. Achenbach

Organizations

  • Northwestern University

Tags

DTIC Thesaurus Topics

  • Ablation
  • Ablative Materials
  • Amplitude
  • Displacement
  • Dynamic Response
  • Frequency
  • Internal Pressure
  • Materials
  • Standards
  • Viscoelasticity

Readers

  • Fluid Dynamics.
  • Structural Health Monitoring of Composite Structures.