Continuous dynamic analysis: evolution of elastic properties with strain. (3rd January 2014)

• Record Type: Journal Article
• Authors: Basu, S.; Hay, J.L.; Swindeman, J.E.; Oliver, W.C.
• Is Part Of: MRS communications. Volume 4:Number 1(2014:Mar.)
• Page Start: 25
• Page End: 29
• Publication Date: 2014-01-03
• Subjects: Materials -- Periodicals; 620.11
• DOI: 10.1557/mrc.2013.49
• Languages: English
• ISSNs: 2159-6859

Abstract

Abstract: Abstract : Mechanical strain triggers changes in inherent molecular structure, especially in polymeric and biological materials. Unlike conventional techniques, we demonstrate a novel dynamic mechanical characterization method to study the effect of this structural evolution with strain on elastic properties. During tensile characterization of small diameter fibers, we quantitatively measured the viscoelastic properties as a continuous function of strain. While this approach is useful to characterize the elastic properties of metal microwires independent of applied strain, it is extremely important for fundamental understanding of molecular changes and their effect on the viscoelastic properties in materials such as polymer fiber and spider silk.