Finite Element Analysis of Pipe Elbows.

Abstract

NASTRAN analyses were performaned with three different finite element models on a 90-degree pipe elbow to determine principal stresses due to internal presssure, inplane bending, out-of-plane bending, and torsion moment loadings. Comparison with stresses experimentally obtained under the four loading conditions demonstrates the adequacy of a finite element model with ideal geometry assumptions and an economical mesh spacing. Implementation of the NASTRAN modeling is described in detail. Deck set-ups for a sequence of computer runs to automatically generate NASTRAN input data, execute NASTRAN, and postprocess NASTRAN output are included. A sample NASTRAN data input file is also listed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1980
Accession Number
ADA081077

Entities

People

  • David W Taylor
  • Gordon C. Everstine
  • Melvyn S. Marcus

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Bending Moments
  • Computations
  • Computer Programs
  • Computers
  • Engineering
  • Experimental Data
  • Finite Element Analysis
  • Geometry
  • Internal Pressure
  • Materials
  • Mathematics
  • Plastic Explosives
  • Procedures (Computers)
  • Sequences
  • Structural Analysis
  • Symmetry

Readers

  • Combustion and Flow Dynamics.
  • Computer Science.
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • Space