Thermoelastic Investigation of Damage Evolution in Small Stainless Steel Pipework
In this work thermoelastic stress analysis (TSA) is used to reveal information about the damage evolution process in small stainless steel pipework. TSA is a well-established stress analysis technique, see Dulieu-Barton and Stanley , based on the measurement of the small temperature change developed in a material as a result of elastic cyclic loading. The temperature change is directly proportional to the change in the sum of the principal surface stresses (Δ(σ1 + σ2)), see Stanley and Chan . This relationship is usually sufficient for linear elastic, homogeneous problems, where the assumption is made that the temperature change is adiabatic.
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