cut depth (mm) strain (microstrain) 0.8128 5.5 1.6256 14.5 2.4384 28.5 3.2512 44 4.064 60 4.8768 76.5 5.6896 93 6.5024 108.5 7.3152 120 8.128 126 8.9408 125.5 9.7536 118.5 10.5664 101.5 11.3792 74.5 12.192 37.5 13.0048 -6 13.8176 -56.5 14.6304 -110.5 15.4432 -168.5 16.256 -229.5 17.0688 -290.5 17.8816 -348.5 18.6944 -402 19.5072 -444.5 20.32 -474 21.1328 -492.5 21.9456 -503 22.7584 -509.5 23.5712 -506 24.384 -496.5 25.1968 -486.5 26.0096 -470 26.8224 -450.5 27.6352 -423.5 28.448 -375.5 29.2608 -252.5