WIT Press


Estimation Of Local Strain Concentration By Thermo Viewer

Price

Free (open access)

Paper DOI

10.2495/CMEM990551

Volume

22

Pages

7

Published

1999

Size

569 kb

Author(s)

H. Sakamoto & E. Nakamachi

Abstract

The stress-strain characteristics and plastic behavior of aluminum alloy were examined by tensile test and infrared thermo viewer. This thermo viewer is a device for converting a thermal radiation pattern from an object into visible images. Al-Mg alloy plates with different crystal grain size (d= 12,42,3000 m) subjected to a uniaxial tensile load were measured continuously by this thermo viewer. The strain concentration pattern was analyzed by the differential thermal image and the macroscopic estimation method by the thermal image processing was proposed. 1 Introduction It is known that the crystal grain siz

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