================================================================================== 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: 26.692175733678962 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.03652755810272108 setting c5 to 535 setting k to 0.03652755810272108 for coupled formulation total reaction force in compression: 0.5281265612392924 calibrated c1 value: 0.03652755810272108 ---------------------------------------- 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 0.03652755810272108 setting k to 0.03652755810272108 for coupled formulation running tension model measured stiffness in tension: 71.64827529930764, expected stiffness: 242 difference: -170.35172470069236 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1807.021864226941 setting c1 to 0.03652755810272108 setting k to 0.03652755810272108 for coupled formulation running tension model measured stiffness in tension: 214.95373348697993, expected stiffness: 242 difference: -27.046266513020072 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2034.3879775849887 setting c1 to 0.03652755810272108 setting k to 0.03652755810272108 for coupled formulation running tension model measured stiffness in tension: 240.2376106052454, expected stiffness: 242 difference: -1.7623893947545923 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2049.31230099746 setting c1 to 0.03652755810272108 setting k to 0.03652755810272108 for coupled formulation running tension model measured stiffness in tension: 241.8943831512151, expected stiffness: 242 difference: -0.10561684878490496 optimized c5 value: 2049.31230099746 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2049.31230099746 setting k to 0.03652755810272108 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 394.71532444055174 Current stiffness in tension: 241.8943831512151 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.02922204648217687 setting k to 0.02922204648217687 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 388.9489144117644 stiffness in tension after reduction of c1 by 20%: 238.72026414801485 ratio of maximum result change/c1 change: 0.07304517549401372 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.03652755810272108 setting c5 to 2049.31230099746 setting k to 0.03652755810272108 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.03652755810272108 setting c5 to 2049.31230099746 setting k to 0.03652755810272108 for coupled formulation final results: c1 = 0.03652755810272108 c5 = 2049.31230099746 k = 0.03652755810272108 stiffness in tension: 241.8943831512151 compression reaction force: 0.5281265612392924 ================================================================================== 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: 34.634995948787115 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.028150717887817266 setting c5 to 535 setting k to 0.28150717887817267 for coupled formulation total reaction force in compression: 0.5277638470169779 calibrated c1 value: 0.028150717887817266 ---------------------------------------- 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 0.028150717887817266 setting k to 0.28150717887817267 for coupled formulation running tension model measured stiffness in tension: 69.4906903564042, expected stiffness: 242 difference: -172.5093096435958 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1863.1272669183975 setting c1 to 0.028150717887817266 setting k to 0.28150717887817267 for coupled formulation running tension model measured stiffness in tension: 218.13189500990867, expected stiffness: 242 difference: -23.868104990091325 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2066.9916179556 setting c1 to 0.028150717887817266 setting k to 0.28150717887817267 for coupled formulation running tension model measured stiffness in tension: 240.74001932907308, expected stiffness: 242 difference: -1.2599806709269217 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2077.8098005446445 setting c1 to 0.028150717887817266 setting k to 0.28150717887817267 for coupled formulation running tension model measured stiffness in tension: 241.93594921890423, expected stiffness: 242 difference: -0.06405078109577289 optimized c5 value: 2077.8098005446445 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2077.8098005446445 setting k to 0.28150717887817267 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 393.82904253642846 Current stiffness in tension: 241.93594921890423 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.022520574310253814 setting k to 0.22520574310253813 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 389.00830561590845 stiffness in tension after reduction of c1 by 20%: 239.3367934546861 ratio of maximum result change/c1 change: 0.06120342077202313 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.028150717887817266 setting c5 to 2077.8098005446445 setting k to 0.28150717887817267 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.028150717887817266 setting c5 to 2077.8098005446445 setting k to 0.28150717887817267 for coupled formulation final results: c1 = 0.028150717887817266 c5 = 2077.8098005446445 k = 0.28150717887817267 stiffness in tension: 241.93594921890423 compression reaction force: 0.5277638470169779 ================================================================================== 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: 40.52432617396124 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.02405962275139525 setting c5 to 535 setting k to 2.405962275139525 for coupled formulation total reaction force in compression: 0.5227484121627153 calibrated c1 value: 0.02405962275139525 ---------------------------------------- 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 0.02405962275139525 setting k to 2.405962275139525 for coupled formulation running tension model measured stiffness in tension: 69.44464075375161, expected stiffness: 242 difference: -172.55535924624837 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1864.3627297187168 setting c1 to 0.02405962275139525 setting k to 2.405962275139525 for coupled formulation running tension model measured stiffness in tension: 218.4551915245681, expected stiffness: 242 difference: -23.544808475431893 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2065.3012521388805 setting c1 to 0.02405962275139525 setting k to 2.405962275139525 for coupled formulation running tension model measured stiffness in tension: 240.78572230362585, expected stiffness: 242 difference: -1.214277696374154 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2075.716526029595 setting c1 to 0.02405962275139525 setting k to 2.405962275139525 for coupled formulation running tension model measured stiffness in tension: 241.93679780653605, expected stiffness: 242 difference: -0.06320219346395106 optimized c5 value: 2075.716526029595 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2075.716526029595 setting k to 2.405962275139525 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 393.5920390907443 Current stiffness in tension: 241.93679780653605 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.0192476982011162 setting k to 1.9247698201116201 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 388.8145808025208 stiffness in tension after reduction of c1 by 20%: 239.3064212047615 ratio of maximum result change/c1 change: 0.060690484229052655 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.02405962275139525 setting c5 to 2075.716526029595 setting k to 2.405962275139525 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.02405962275139525 setting c5 to 2075.716526029595 setting k to 2.405962275139525 for coupled formulation final results: c1 = 0.02405962275139525 c5 = 2075.716526029595 k = 2.405962275139525 stiffness in tension: 241.93679780653605 compression reaction force: 0.5227484121627153 ================================================================================== 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: 53.72005580395091 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.018149646075540603 setting c5 to 535 setting k to 18.149646075540602 for coupled formulation total reaction force in compression: 0.5063331649145748 calibrated c1 value: 0.018149646075540603 ---------------------------------------- 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 0.018149646075540603 setting k to 18.149646075540602 for coupled formulation running tension model measured stiffness in tension: 72.37139675655476, expected stiffness: 242 difference: -169.62860324344524 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1788.966439814826 setting c1 to 0.018149646075540603 setting k to 18.149646075540602 for coupled formulation running tension model measured stiffness in tension: 214.98418973866802, expected stiffness: 242 difference: -27.01581026133198 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2013.7754267485984 setting c1 to 0.018149646075540603 setting k to 18.149646075540602 for coupled formulation running tension model measured stiffness in tension: 240.2009975416622, expected stiffness: 242 difference: -1.7990024583378101 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2028.8577410617713 setting c1 to 0.018149646075540603 setting k to 18.149646075540602 for coupled formulation running tension model measured stiffness in tension: 241.89268989584122, expected stiffness: 242 difference: -0.10731010415878472 optimized c5 value: 2028.8577410617713 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 2028.8577410617713 setting k to 18.149646075540602 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 394.8637778797772 Current stiffness in tension: 241.89268989584122 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.014519716860432484 setting k to 14.519716860432483 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 388.8655938992803 stiffness in tension after reduction of c1 by 20%: 238.6788849051479 ratio of maximum result change/c1 change: 0.07595257296964747 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.018149646075540603 setting c5 to 2028.8577410617713 setting k to 18.149646075540602 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.018149646075540603 setting c5 to 2028.8577410617713 setting k to 18.149646075540602 for coupled formulation final results: c1 = 0.018149646075540603 c5 = 2028.8577410617713 k = 18.149646075540602 stiffness in tension: 241.89268989584122 compression reaction force: 0.5063331649145748 ================================================================================== 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: 79.57667560133434 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.012252333898497905 setting c5 to 535 setting k to 122.52333898497905 for coupled formulation total reaction force in compression: 0.5002369140055639 calibrated c1 value: 0.012252333898497905 ---------------------------------------- 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 0.012252333898497905 setting k to 122.52333898497905 for coupled formulation running tension model measured stiffness in tension: 87.10437093357395, expected stiffness: 242 difference: -154.89562906642607 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1486.3777628189773 setting c1 to 0.012252333898497905 setting k to 122.52333898497905 for coupled formulation running tension model measured stiffness in tension: 202.78475857041238, expected stiffness: 242 difference: -39.21524142958762 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1773.818807379913 setting c1 to 0.012252333898497905 setting k to 122.52333898497905 for coupled formulation running tension model measured stiffness in tension: 236.39525578806217, expected stiffness: 242 difference: -5.6047442119378275 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1815.8746458549554 setting c1 to 0.012252333898497905 setting k to 122.52333898497905 for coupled formulation running tension model measured stiffness in tension: 241.29062682276182, expected stiffness: 242 difference: -0.7093731772381773 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1821.2131572756355 setting c1 to 0.012252333898497905 setting k to 122.52333898497905 for coupled formulation running tension model measured stiffness in tension: 241.91107697245735, expected stiffness: 242 difference: -0.08892302754264847 optimized c5 value: 1821.2131572756355 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 1821.2131572756355 setting k to 122.52333898497905 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 403.0910096498804 Current stiffness in tension: 241.91107697245735 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.009801867118798324 setting k to 98.01867118798324 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 391.39587348679345 stiffness in tension after reduction of c1 by 20%: 235.51805120441355 ratio of maximum result change/c1 change: 0.14506818414587297 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.012252333898497905 setting c5 to 1821.2131572756355 setting k to 122.52333898497905 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.012252333898497905 setting c5 to 1821.2131572756355 setting k to 122.52333898497905 for coupled formulation final results: c1 = 0.012252333898497905 c5 = 1821.2131572756355 k = 122.52333898497905 stiffness in tension: 241.91107697245735 compression reaction force: 0.5002369140055639