In-service TSA of composite structures using transient loading
Quinn, S., Dulieu-Barton, J.M. and Fruehmann, R.K. (2008) In-service TSA of composite structures using transient loading. In, SEM XI International Congress on Experimental and Applied Mechanics, Orlando, Florida, 02 - 05 Jun 2008. Bethal, Connecticut, Society for Experimental Mechanics8pp.
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At present Thermoelastic Stress Analysis (TSA) is a laboratory based technique as it is limited by the requirement to use a cyclic load. TSA has been proven effective in the monitoring, detection and characterisation of damage in composite components in the laboratory. The purpose of this paper is to demonstrate that it is possible to obtain quantitative data from a transient excitation provided by an impulse load. Test specimens of woven glass reinforced epoxy material were manufactured. Impact damage was produced in the specimens by drop tests. A Cedip Infrared Systems, solid state cooled, array detector (320 by 256 elements) was used to collect the thermal data from the specimens. A specially designed rig was used to clamp the specimens and to provide the impulse load. The paper contains a detailed description of the rig. Specimens were tested that contained different levels of damage and it is demonstrated that the different levels of damage can be identified by the TSA during the transient loading
|Item Type:||Conference or Workshop Item (Paper)|
|Keywords:||TSA, transient loading|
|Subjects:||T Technology > TJ Mechanical engineering and machinery|
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
|Date Deposited:||04 Aug 2008|
|Last Modified:||28 Mar 2014 15:11|
Application of Thermoelastic Stress Analysis as a design tool for the assessment of complex composite components
Funded by: EPSRC (EP/D037271/1)
Led by: Simon Quinn
2 May 2006 to 1 May 2009
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