================================================================================== intial guess c1: 1.95 intial guess c5: 535 ratio: 1.0 coupled: True c1 calibration using compression model FeBio_custom_compression.feb changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 1.95 setting c5 to 535 setting k to 1.95 for coupled formulation total reaction force in compression: 30.243739053952968 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.03223807738390614 setting c5 to 535 setting k to 0.03223807738390614 for coupled formulation total reaction force in compression: 0.5021934727194292 calibrated c1 value: 0.03223807738390614 ---------------------------------------- c5 calibration using tension model FeBio_custom_tension.feb Beginning optimization changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 535 setting c1 to 0.03223807738390614 setting k to 0.03223807738390614 for coupled formulation running tension model measured stiffness in tension: 70.09261606172291, expected stiffness: 180 difference: -109.90738393827709 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1373.8965016685797 setting c1 to 0.03223807738390614 setting k to 0.03223807738390614 for coupled formulation running tension model measured stiffness in tension: 169.37591988754957, expected stiffness: 180 difference: -10.624080112450429 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1460.0739613076657 setting c1 to 0.03223807738390614 setting k to 0.03223807738390614 for coupled formulation running tension model measured stiffness in tension: 179.5542008364803, expected stiffness: 180 difference: -0.44579916351969473 optimized c5 value: 1460.0739613076657 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1460.0739613076657 setting k to 0.03223807738390614 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 275.0067125112585 Current stiffness in tension: 179.5542008364803 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.025790461907124914 setting k to 0.025790461907124914 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 271.9197880840782 stiffness in tension after reduction of c1 by 20%: 177.7132901580059 ratio of maximum result change/c1 change: 0.0561245287249837 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.03223807738390614 setting c5 to 1460.0739613076657 setting k to 0.03223807738390614 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.03223807738390614 setting c5 to 1460.0739613076657 setting k to 0.03223807738390614 for coupled formulation final results: c1 = 0.03223807738390614 c5 = 1460.0739613076657 k = 0.03223807738390614 stiffness in tension: 179.5542008364803 compression reaction force: 0.5021934727194292 ================================================================================== intial guess c1: 1.95 intial guess c5: 535 ratio: 10.0 coupled: True c1 calibration using compression model FeBio_custom_compression.feb changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 1.95 setting c5 to 535 setting k to 19.5 for coupled formulation total reaction force in compression: 38.24880340675248 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.025490993525509157 setting c5 to 535 setting k to 0.2549099352550916 for coupled formulation total reaction force in compression: 0.5026669356880359 calibrated c1 value: 0.025490993525509157 ---------------------------------------- c5 calibration using tension model FeBio_custom_tension.feb Beginning optimization changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 535 setting c1 to 0.025490993525509157 setting k to 0.2549099352550916 for coupled formulation running tension model measured stiffness in tension: 68.70855095491065, expected stiffness: 180 difference: -111.29144904508935 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1401.572273925497 setting c1 to 0.025490993525509157 setting k to 0.2549099352550916 for coupled formulation running tension model measured stiffness in tension: 170.98413589409319, expected stiffness: 180 difference: -9.015864105906815 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1475.4761193918741 setting c1 to 0.025490993525509157 setting k to 0.2549099352550916 for coupled formulation running tension model measured stiffness in tension: 179.71218723991444, expected stiffness: 180 difference: -0.2878127600855578 optimized c5 value: 1475.4761193918741 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1475.4761193918741 setting k to 0.2549099352550916 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 274.71270700468153 Current stiffness in tension: 179.71218723991444 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.020392794820407328 setting k to 0.20392794820407328 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 272.1537729644952 stiffness in tension after reduction of c1 by 20%: 178.16563765067914 ratio of maximum result change/c1 change: 0.0465747301624224 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.025490993525509157 setting c5 to 1475.4761193918741 setting k to 0.2549099352550916 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.025490993525509157 setting c5 to 1475.4761193918741 setting k to 0.2549099352550916 for coupled formulation final results: c1 = 0.025490993525509157 c5 = 1475.4761193918741 k = 0.2549099352550916 stiffness in tension: 179.71218723991444 compression reaction force: 0.5026669356880359 ================================================================================== intial guess c1: 1.95 intial guess c5: 535 ratio: 100.0 coupled: True c1 calibration using compression model FeBio_custom_compression.feb changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 1.95 setting c5 to 535 setting k to 195.0 for coupled formulation total reaction force in compression: 43.55080215797293 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.02238764733800672 setting c5 to 535 setting k to 2.238764733800672 for coupled formulation total reaction force in compression: 0.5019401686346691 calibrated c1 value: 0.02238764733800672 ---------------------------------------- c5 calibration using tension model FeBio_custom_tension.feb Beginning optimization changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 535 setting c1 to 0.02238764733800672 setting k to 2.238764733800672 for coupled formulation running tension model measured stiffness in tension: 68.48943632748744, expected stiffness: 180 difference: -111.51056367251256 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1406.056249894279 setting c1 to 0.02238764733800672 setting k to 2.238764733800672 for coupled formulation running tension model measured stiffness in tension: 171.3636079204898, expected stiffness: 180 difference: -8.636392079510188 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1476.918746355996 setting c1 to 0.02238764733800672 setting k to 2.238764733800672 for coupled formulation running tension model measured stiffness in tension: 179.71889463706052, expected stiffness: 180 difference: -0.28110536293948485 optimized c5 value: 1476.918746355996 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1476.918746355996 setting k to 2.238764733800672 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 274.59279017985887 Current stiffness in tension: 179.71889463706052 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.017910117870405376 setting k to 1.7910117870405375 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 272.1411821293499 stiffness in tension after reduction of c1 by 20%: 178.26627787297113 ratio of maximum result change/c1 change: 0.044640794263082643 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.02238764733800672 setting c5 to 1476.918746355996 setting k to 2.238764733800672 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.02238764733800672 setting c5 to 1476.918746355996 setting k to 2.238764733800672 for coupled formulation final results: c1 = 0.02238764733800672 c5 = 1476.918746355996 k = 2.238764733800672 stiffness in tension: 179.71889463706052 compression reaction force: 0.5019401686346691 ================================================================================== intial guess c1: 1.95 intial guess c5: 535 ratio: 1000.0 coupled: True c1 calibration using compression model FeBio_custom_compression.feb changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 1.95 setting c5 to 535 setting k to 1950.0 for coupled formulation total reaction force in compression: 52.13415555708177 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.018701751080104693 setting c5 to 535 setting k to 18.701751080104692 for coupled formulation total reaction force in compression: 0.5010581897634245 calibrated c1 value: 0.018701751080104693 ---------------------------------------- c5 calibration using tension model FeBio_custom_tension.feb Beginning optimization changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 535 setting c1 to 0.018701751080104693 setting k to 18.701751080104692 for coupled formulation running tension model measured stiffness in tension: 69.9394059617454, expected stiffness: 180 difference: -110.0605940382546 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1376.9061757926997 setting c1 to 0.018701751080104693 setting k to 18.701751080104692 for coupled formulation running tension model measured stiffness in tension: 170.14606564683206, expected stiffness: 180 difference: -9.853934353167944 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1456.6490897128806 setting c1 to 0.018701751080104693 setting k to 18.701751080104692 for coupled formulation running tension model measured stiffness in tension: 179.59767528881412, expected stiffness: 180 difference: -0.40232471118588364 optimized c5 value: 1456.6490897128806 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1456.6490897128806 setting k to 18.701751080104692 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 274.53677454077075 Current stiffness in tension: 179.59767528881412 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.014961400864083756 setting k to 14.961400864083755 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 271.6711822668904 stiffness in tension after reduction of c1 by 20%: 177.8727019393584 ratio of maximum result change/c1 change: 0.05218958878412073 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.018701751080104693 setting c5 to 1456.6490897128806 setting k to 18.701751080104692 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.018701751080104693 setting c5 to 1456.6490897128806 setting k to 18.701751080104692 for coupled formulation final results: c1 = 0.018701751080104693 c5 = 1456.6490897128806 k = 18.701751080104692 stiffness in tension: 179.59767528881412 compression reaction force: 0.5010581897634245 ================================================================================== intial guess c1: 1.95 intial guess c5: 535 ratio: 10000.0 coupled: True c1 calibration using compression model FeBio_custom_compression.feb changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 1.95 setting c5 to 535 setting k to 19500.0 for coupled formulation total reaction force in compression: 74.70339103233533 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.013051616352703074 setting c5 to 535 setting k to 130.51616352703073 for coupled formulation total reaction force in compression: 0.500098132746964 calibrated c1 value: 0.013051616352703074 ---------------------------------------- c5 calibration using tension model FeBio_custom_tension.feb Beginning optimization changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 535 setting c1 to 0.013051616352703074 setting k to 130.51616352703073 for coupled formulation running tension model measured stiffness in tension: 77.10153222127671, expected stiffness: 180 difference: -102.89846777872329 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1249.0024157188582 setting c1 to 0.013051616352703074 setting k to 130.51616352703073 for coupled formulation running tension model measured stiffness in tension: 165.05740528119375, expected stiffness: 180 difference: -14.942594718806248 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1362.0742095538683 setting c1 to 0.013051616352703074 setting k to 130.51616352703073 for coupled formulation running tension model measured stiffness in tension: 178.82687556855964, expected stiffness: 180 difference: -1.1731244314403568 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1371.0095696756741 setting c1 to 0.013051616352703074 setting k to 130.51616352703073 for coupled formulation running tension model measured stiffness in tension: 179.9161906562692, expected stiffness: 180 difference: -0.08380934373079185 optimized c5 value: 1371.0095696756741 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1371.0095696756741 setting k to 130.51616352703073 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 277.13114361464324 Current stiffness in tension: 179.9161906562692 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.01044129308216246 setting k to 104.4129308216246 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 272.00435242208897 stiffness in tension after reduction of c1 by 20%: 176.91766899063893 ratio of maximum result change/c1 change: 0.0924975649738446 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.013051616352703074 setting c5 to 1371.0095696756741 setting k to 130.51616352703073 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.013051616352703074 setting c5 to 1371.0095696756741 setting k to 130.51616352703073 for coupled formulation final results: c1 = 0.013051616352703074 c5 = 1371.0095696756741 k = 130.51616352703073 stiffness in tension: 179.9161906562692 compression reaction force: 0.500098132746964