Variation of the strain rate during CSM nanoindentation of glassy polymers and its implication on indentation size effect

• Published in: Journal of polymer science. Part B, Polymer physics Vol. 54; no. 21; pp. 2179 - 2187
• Main Authors: Voyiadjis, George Z., Malekmotiei, Leila
• Format: Journal Article
• Language: English
• Published: Hoboken Blackwell Publishing Ltd 01.11.2016; Wiley Subscription Services, Inc
• Subjects: amorphous polymers; Constants; continuous stiffness measurement; Hardness; Indentation; indentation strain rate; Nanoindentation; poly(methyl methacrylate); polycarbonate; Polycarbonates; Polymethyl methacrylates; Stiffness; Strain rate

ABSTRACT The indentation strain rate is currently assumed to remain unvaried during continuous stiffness measurement (CSM) nanoindentation where Ṗ/P is imposed to remain constant. To probe the validity of this assumption for the nanoindentation of glassy polymers, a series of experiments have been...