3-Dimensional Stress Analysis of Superheater Headers

Abstract

Naval Sea Systems Command (NAVSEA) initiated an investigation of the Tarawa class (LHA-1 superheater headers due to the reoccurrence of numerous cracks and leaks in the tube to header attachment welds. A 3-dimensional solid finite element model was developed to simulate the superheater header geometry. ADINA, a finite element program for automatic dynamic incremental nonlinear analysis, is used to evaluate the stresses present in the header particularly the stresses that are present in the tube to header welds. The model that is used evaluates the stresses induced by both pressure and thermal loadings. This is part of a continuing study of high pressure and high temperature boiler components. Keywords: Thermal stresses, Theses.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1989
Accession Number
ADA220391

Entities

People

  • Jonathan D. Barnes

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Attachment
  • Climate Change
  • Computer Programs
  • Engineering
  • Geometry
  • Heat Transfer
  • High Pressure
  • Inner Tubes
  • Internal Pressure
  • Mechanics
  • Operating Systems
  • Stress Analysis
  • Superheaters
  • Systems Engineering
  • Temperature Gradients
  • Thermal Stresses
  • Three Dimensional

Fields of Study

  • Engineering

Readers

  • Fire Suppression Systems Design.
  • Naval Architecture and Marine Engineering.
  • Structural Health Monitoring of Composite Structures.