3 032 Mechanical Behavior of Materials Fall 2007 Hardness testing Estimates of yield strength Table removed due to copyright restrictions Please see http en wikipedia org wiki Brinell scale Lecture 24 11 05 07 3 032 Mechanical Behavior of Materials Fall 2007 Instrumented Indentation Estimates of elastic modulus and yield strength Images removed due to copyright restrictions Please see Fig 1 in Juliano T F et al Multiscale Creep Compliance of Epoxy Networks at Elevated Temperatures Experimental Mechanics 47 2007 99 105 Analysis Fig 1b in Tweedie Catherine A and Van Vliet Krystyn J On the indentation recovery and fleeting hardness of polymers Journal of Materials Research 21 December 2006 3029 3036 dP dh Er dP dh P max Amax 1 2 1 i 2 1 s 2 E s Ei 1 Lecture 24 11 05 07
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