Measurement of intrinsic material damping using differential calorimetry on specimens under uniaxial tension
2004 (English)In: Thermochimica Acta, ISSN 0040-6031, E-ISSN 1872-762X, Vol. 411, no 2, 125-131 p.Article in journal (Refereed) Published
A method has been developed to measure the intrinsic damping capacity of metals. A specimen is subjected to a cyclic uniaxial stress, to give a prescribed energy input. The amount of energy that is stored in the specimen is measured using differential calorimetry, i.e. the difference in temperature between the specimen under stress and a non-stressed reference sample is measured. The experiments were performed in an insulated vacuum container to reduce convective losses. The heating rate, together with the energy input, is used as a measure of the intrinsic material damping in the specimen. The method has been developed by testing an aluminium based and a stainless steel alloy. It is possible to distinguish the difference in damping between these two alloys.
Place, publisher, year, edition, pages
2004. Vol. 411, no 2, 125-131 p.
Calorimetric methods, Damping, Intrinsic, Material propertiesc
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-5954DOI: 10.1016/j.tca.2003.08.011ISI: 000189166000002ScopusID: 2-s2.0-1042287245OAI: oai:DiVA.org:kth-5954DiVA: diva2:10502
QC 201009222006-06-022006-06-022011-10-27Bibliographically approved