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: 25.511420651355344 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.03821817739296307 setting c5 to 535 setting k to 0.03821817739296307 for coupled formulation total reaction force in compression: 0.5067539069430151 calibrated c1 value: 0.03821817739296307 ---------------------------------------- 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 0.03821817739296307 setting k to 0.03821817739296307 for coupled formulation running tension model measured stiffness in tension: 122.70271012015085, expected stiffness: 220 difference: -97.29728987984915 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 959.2290169039283 setting c1 to 0.03821817739296307 setting k to 0.03821817739296307 for coupled formulation running tension model measured stiffness in tension: 215.66705717931603, expected stiffness: 220 difference: -4.332942820683968 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 978.5007802253423 setting c1 to 0.03821817739296307 setting k to 0.03821817739296307 for coupled formulation running tension model measured stiffness in tension: 219.88470559112892, expected stiffness: 220 difference: -0.11529440887107967 optimized c5 value: 978.5007802253423 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 978.5007802253423 setting k to 0.03821817739296307 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 427.7127696239732 Current stiffness in tension: 219.88470559112892 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.030574541914370458 setting k to 0.030574541914370458 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 424.4646981095719 stiffness in tension after reduction of c1 by 20%: 218.37579086871452 ratio of maximum result change/c1 change: 0.03797024247436993 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.03821817739296307 setting c5 to 978.5007802253423 setting k to 0.03821817739296307 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.03821817739296307 setting c5 to 978.5007802253423 setting k to 0.03821817739296307 for coupled formulation final results: c1 = 0.03821817739296307 c5 = 978.5007802253423 k = 0.03821817739296307 stiffness in tension: 219.88470559112892 compression reaction force: 0.5067539069430151 ================================================================================== 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: 32.95620624001039 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.029584715937852824 setting c5 to 535 setting k to 0.29584715937852823 for coupled formulation total reaction force in compression: 0.507524223918514 calibrated c1 value: 0.029584715937852824 ---------------------------------------- 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 0.029584715937852824 setting k to 0.29584715937852823 for coupled formulation running tension model measured stiffness in tension: 121.42927502520386, expected stiffness: 220 difference: -98.57072497479614 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 969.2885012742618 setting c1 to 0.029584715937852824 setting k to 0.29584715937852823 for coupled formulation running tension model measured stiffness in tension: 216.44913202176235, expected stiffness: 220 difference: -3.5508679782376475 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 985.1897685544774 setting c1 to 0.029584715937852824 setting k to 0.29584715937852823 for coupled formulation running tension model measured stiffness in tension: 219.92360539493342, expected stiffness: 220 difference: -0.07639460506658224 optimized c5 value: 985.1897685544774 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 985.1897685544774 setting k to 0.29584715937852823 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 427.33025002128034 Current stiffness in tension: 219.92360539493342 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.02366777275028226 setting k to 0.2366777275028226 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 424.571076574712 stiffness in tension after reduction of c1 by 20%: 218.63381116491854 ratio of maximum result change/c1 change: 0.032283853605390114 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.029584715937852824 setting c5 to 985.1897685544774 setting k to 0.29584715937852823 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.029584715937852824 setting c5 to 985.1897685544774 setting k to 0.29584715937852823 for coupled formulation final results: c1 = 0.029584715937852824 c5 = 985.1897685544774 k = 0.29584715937852823 stiffness in tension: 219.92360539493342 compression reaction force: 0.507524223918514 ================================================================================== 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: 38.12190674121771 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.025575845579251216 setting c5 to 535 setting k to 2.5575845579251215 for coupled formulation total reaction force in compression: 0.5033662300428585 calibrated c1 value: 0.025575845579251216 ---------------------------------------- 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 0.025575845579251216 setting k to 2.5575845579251215 for coupled formulation running tension model measured stiffness in tension: 121.93719675255372, expected stiffness: 220 difference: -98.06280324744628 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 965.2509909576465 setting c1 to 0.025575845579251216 setting k to 2.5575845579251215 for coupled formulation running tension model measured stiffness in tension: 216.14637451649963, expected stiffness: 220 difference: -3.853625483500366 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 982.4602355033811 setting c1 to 0.025575845579251216 setting k to 2.5575845579251215 for coupled formulation running tension model measured stiffness in tension: 219.90907891594907, expected stiffness: 220 difference: -0.09092108405093313 optimized c5 value: 982.4602355033811 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 982.4602355033811 setting k to 2.5575845579251215 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 427.6254068647114 Current stiffness in tension: 219.90907891594907 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.020460676463400974 setting k to 2.0460676463400973 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 424.733496420991 stiffness in tension after reduction of c1 by 20%: 218.59011215989673 ratio of maximum result change/c1 change: 0.03381359476420591 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.025575845579251216 setting c5 to 982.4602355033811 setting k to 2.5575845579251215 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.025575845579251216 setting c5 to 982.4602355033811 setting k to 2.5575845579251215 for coupled formulation final results: c1 = 0.025575845579251216 c5 = 982.4602355033811 k = 2.5575845579251215 stiffness in tension: 219.90907891594907 compression reaction force: 0.5033662300428585 ================================================================================== 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: 44.841708125694765 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.02174315031146895 setting c5 to 535 setting k to 21.743150311468952 for coupled formulation total reaction force in compression: 0.500330190034541 calibrated c1 value: 0.02174315031146895 ---------------------------------------- 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 0.02174315031146895 setting k to 21.743150311468952 for coupled formulation running tension model measured stiffness in tension: 127.2341094565254, expected stiffness: 220 difference: -92.7658905434746 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 925.0664032054776 setting c1 to 0.02174315031146895 setting k to 21.743150311468952 for coupled formulation running tension model measured stiffness in tension: 213.66136146966593, expected stiffness: 220 difference: -6.338638530334066 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 952.510118372987 setting c1 to 0.02174315031146895 setting k to 21.743150311468952 for coupled formulation running tension model measured stiffness in tension: 219.70936941852196, expected stiffness: 220 difference: -0.290630581478041 optimized c5 value: 952.510118372987 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 952.510118372987 setting k to 21.743150311468952 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 429.4627191701743 Current stiffness in tension: 219.70936941852196 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.01739452024917516 setting k to 17.39452024917516 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 424.8375114349603 stiffness in tension after reduction of c1 by 20%: 217.46521312378235 ratio of maximum result change/c1 change: 0.05384876880758169 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.02174315031146895 setting c5 to 952.510118372987 setting k to 21.743150311468952 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.02174315031146895 setting c5 to 952.510118372987 setting k to 21.743150311468952 for coupled formulation final results: c1 = 0.02174315031146895 c5 = 952.510118372987 k = 21.743150311468952 stiffness in tension: 219.70936941852196 compression reaction force: 0.500330190034541 ================================================================================== 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: 57.50071883210156 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.0169563097610473 setting c5 to 535 setting k to 169.56309761047302 for coupled formulation total reaction force in compression: 0.5000828442703869 calibrated c1 value: 0.0169563097610473 ---------------------------------------- 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 0.0169563097610473 setting k to 169.56309761047302 for coupled formulation running tension model measured stiffness in tension: 148.46100497074096, expected stiffness: 220 difference: -71.53899502925904 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 792.8007763600724 setting c1 to 0.0169563097610473 setting k to 169.56309761047302 for coupled formulation running tension model measured stiffness in tension: 209.91020767388048, expected stiffness: 220 difference: -10.089792326119522 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 830.9084762099393 setting c1 to 0.0169563097610473 setting k to 169.56309761047302 for coupled formulation running tension model measured stiffness in tension: 218.87543612848268, expected stiffness: 220 difference: -1.1245638715173243 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 835.1776151750569 setting c1 to 0.0169563097610473 setting k to 169.56309761047302 for coupled formulation running tension model measured stiffness in tension: 219.87842906690253, expected stiffness: 220 difference: -0.12157093309747324 optimized c5 value: 835.1776151750569 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 835.1776151750569 setting k to 169.56309761047302 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 434.1565159681933 Current stiffness in tension: 219.87842906690253 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.01356504780883784 setting k to 135.6504780883784 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 423.6475799195482 stiffness in tension after reduction of c1 by 20%: 214.62419166577405 ratio of maximum result change/c1 change: 0.1210270451107886 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.0169563097610473 setting c5 to 835.1776151750569 setting k to 169.56309761047302 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.0169563097610473 setting c5 to 835.1776151750569 setting k to 169.56309761047302 for coupled formulation final results: c1 = 0.0169563097610473 c5 = 835.1776151750569 k = 169.56309761047302 stiffness in tension: 219.87842906690253 compression reaction force: 0.5000828442703869