Underwater Shock-Induced Responses of Stiffened Flat Plates: An Investigation Into the Predictive Capabilities of the USA-STAGS Code.

Abstract

An experimental investigation was conducted to determine the dynamic responses of stiffened flat plates to impulsive loading by underwater shock waves. Air-backed flat plates with machined external stiffeners and clamped boundary conditions were subjected to shock loadings from TNT charges detonated underwater. The plates were instrumented to measure transient strains and free field pressures. Test results were compared to preshot calculations done using the USA-STAGS code. Particular emphasis was placed upon the code's ability to predict stiffener tripping and shear at plate boundaries. Keywords: Theses; STAGS(Structural Analysis of General Shells); USA (Underwater Shock Analysis); Finite elements; Underwater explosion; Stiffener tripping; Fluid structure interaction; Submerged structure.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1984
Accession Number
ADA154245

Entities

People

  • N. R. King

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Counter WMD
  • Energy and Power Technologies
  • Engineered Resilient Systems
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Computer Programs
  • Dynamic Response
  • Engineering
  • Explosions
  • Explosives
  • Flat Plate Models
  • Free Field
  • Geometry
  • Measurement
  • Mechanical Engineering
  • Modal Analysis
  • Modulus Of Elasticity
  • Resonant Frequency
  • Shock Waves
  • Test Facilities
  • Transient Response Analysis
  • Underwater Explosions

Fields of Study

  • Engineering
  • Physics

Readers

  • Explosive Engineering.
  • Structural Dynamics.