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Russian Journal of Nondestructive Testing

, Volume 54, Issue 11, pp 748–756 | Cite as

Acoustic-Emission Testing of Failure in Samples of CFRP Exposed to Static and Heat Loads

  • L. N. StepanovaEmail author
  • V. V. Chernova
  • E. S. Petrova
  • I. S. Ramazanov
Acoustic Methods
  • 2 Downloads

Abstract

The results of testing samples made of T700 carbon fiber reinforced plastic with a stress concentrator in the form of a hole 14 mm in diameter are considered. Some of the samples were heated to a temperature of +100°C, followed by exposure to a static tensile load, with the remaining samples statically loaded at a temperature of +20°C. In the process of loading, information was recorded using the method of acoustic emission. At first, the samples were loaded statically up to 50 kN, which was 50% of the average breaking load. Then the load was increased in increments ΔP = 10 kN until sample failure. It was observed that the simultaneous exposure of samples to static and heat loads decreased the load capacity of the samples.

Keywords

carbon fiber reinforced plastic sample thermal tests static load defect acoustic emission failure 

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • L. N. Stepanova
    • 1
    Email author
  • V. V. Chernova
    • 2
  • E. S. Petrova
    • 1
  • I. S. Ramazanov
    • 1
  1. 1.Siberian Aeronautical Research InstituteNovosibirskRussia
  2. 2.Siberian Transport UniversityNovosibirskRussia

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