Thermoelastic Stress and Damage Analysis Using Transient Loading

Abstract

Thermoelastic stress analysis (TSA) is often regarded as a laboratory based technique due to its requirement for a cyclic load. A modified methodology is proposed in which only a single transient load is used for the TSA measurement. Two methods of imparting the transient load are validated against calculations and the conventional TSA approach. Specimens with different damage severities are tested and it is shown that the modified TSA method has the potential to be applied in the field as a non-destructive evaluation tool.

This is a preview of subscription content, access via your institution.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16

References

  1. 1.

    Stanley P, Chan WK (1985) Quantitative stress analysis by means of the thermoelastic effect. J Strain Anal 20:129–137

    MATH  Article  Google Scholar 

  2. 2.

    Stanley P, Chan WK (1988) The application of thermoelastic stress analysis techniques to composite materials. J Strain Anal 23:137–143

    Article  Google Scholar 

  3. 3.

    Emery TR, Dulieu-Barton JM (2007) Damage monitoring of composite materials using pulsed phase thermography and thermoelastic stress analysis. Key Eng Mater 347:621–626

    Article  Google Scholar 

  4. 4.

    LanzadiScalea F (1998) Measurement of thermal expansion coefficients of composites using strain gages. Exp Mech 38:233–241

    Google Scholar 

  5. 5.

    Cunningham PR, Dulieu-Barton JM, Shenoi RA (2002) Damage location and identification using infra-red thermography and thermoelastic stress analysis. Proc SPIE 4704:93–103

    Article  Google Scholar 

Download references

Acknowledgments

The authors are grateful for the support of the Engineering and Physical Sciences Research Council and Airbus UK.

Author information

Affiliations

Authors

Corresponding author

Correspondence to J. M. Dulieu-Barton.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Fruehmann, R.K., Dulieu-Barton, J.M. & Quinn, S. Thermoelastic Stress and Damage Analysis Using Transient Loading. Exp Mech 50, 1075–1086 (2010). https://doi.org/10.1007/s11340-009-9295-9

Download citation

Keywords

  • Thermoelastic stress analysis
  • Transient loading
  • Composite materials
  • Damage
  • Delamination