Measurement of Temperatures Developed in Tensile Bars Under Test to Fracture.

Abstract

Mild steel tensile bars are hardened and tempered and pulled to fracture. The temperature generated within the tensile bars is measured with a scanning infrared radiometer and liquid crystals. Radiometer tracings and photographs of the liquid crystals are presented which show an intense localized heating present in the necked region of the tensile bars. A temperature anomaly expected on the basis of past work was not observed. A concept, in its preliminary stage, is presented to describe the apparent temperature anomaly in terms of a crystal model potential energy function.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1975
Accession Number
ADA040424

Entities

People

  • Edgar B. Singleton

Organizations

  • Bowling Green State University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Advanced Materials
  • Calibration
  • Cameras
  • Crystal Structure
  • Crystals
  • Energy
  • Liquid Crystals
  • Materials
  • Measurement
  • Mechanics
  • Motion Pictures
  • Photographic Materials
  • Photographs
  • Photography
  • Potential Energy
  • Temperature Gradients
  • Visible Spectra

Fields of Study

  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Theoretical Analysis.
  • Thermal Physics or Thermal Science.