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: 30.76437289121948 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.03169250364528889 setting c5 to 535 setting k to 0.03169250364528889 for coupled formulation total reaction force in compression: 0.5177921142978136 calibrated c1 value: 0.03169250364528889 ---------------------------------------- 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 0.03169250364528889 setting k to 0.03169250364528889 for coupled formulation running tension model measured stiffness in tension: 304.9490989085623, expected stiffness: 180 difference: 124.94909890856229 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 315.7904068077773 setting c1 to 0.03169250364528889 setting k to 0.03169250364528889 for coupled formulation running tension model measured stiffness in tension: 180.46716842087082, expected stiffness: 180 difference: 0.46716842087082 optimized c5 value: 315.7904068077773 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 315.7904068077773 setting k to 0.03169250364528889 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 350.34017814404325 Current stiffness in tension: 180.46716842087082 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.025354002916231112 setting k to 0.025354002916231112 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 349.33832569015385 stiffness in tension after reduction of c1 by 20%: 179.95056430117953 ratio of maximum result change/c1 change: 0.014312966846316118 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.03169250364528889 setting c5 to 315.7904068077773 setting k to 0.03169250364528889 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.03169250364528889 setting c5 to 315.7904068077773 setting k to 0.03169250364528889 for coupled formulation final results: c1 = 0.03169250364528889 c5 = 315.7904068077773 k = 0.03169250364528889 stiffness in tension: 180.46716842087082 compression reaction force: 0.5177921142978136 ================================================================================== 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: 40.73698865662507 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.023934022424149787 setting c5 to 535 setting k to 0.23934022424149787 for coupled formulation total reaction force in compression: 0.5119889457507848 calibrated c1 value: 0.023934022424149787 ---------------------------------------- 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 0.023934022424149787 setting k to 0.23934022424149787 for coupled formulation running tension model measured stiffness in tension: 304.393611485378, expected stiffness: 180 difference: 124.39361148537802 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 316.36669222483306 setting c1 to 0.023934022424149787 setting k to 0.23934022424149787 for coupled formulation running tension model measured stiffness in tension: 180.25354906151918, expected stiffness: 180 difference: 0.25354906151918044 optimized c5 value: 316.36669222483306 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 316.36669222483306 setting k to 0.23934022424149787 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 349.891438732073 Current stiffness in tension: 180.25354906151918 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.01914721793931983 setting k to 0.19147217939319833 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 349.07919682215385 stiffness in tension after reduction of c1 by 20%: 179.83809457722955 ratio of maximum result change/c1 change: 0.011607056075200926 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.023934022424149787 setting c5 to 316.36669222483306 setting k to 0.23934022424149787 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.023934022424149787 setting c5 to 316.36669222483306 setting k to 0.23934022424149787 for coupled formulation final results: c1 = 0.023934022424149787 c5 = 316.36669222483306 k = 0.23934022424149787 stiffness in tension: 180.25354906151918 compression reaction force: 0.5119889457507848 ================================================================================== 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: 48.28634977154517 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.0201920419458702 setting c5 to 535 setting k to 2.01920419458702 for coupled formulation total reaction force in compression: 0.504327506871279 calibrated c1 value: 0.0201920419458702 ---------------------------------------- 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 0.0201920419458702 setting k to 2.01920419458702 for coupled formulation running tension model measured stiffness in tension: 304.4955076775582, expected stiffness: 180 difference: 124.49550767755818 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 316.26082346664936 setting c1 to 0.0201920419458702 setting k to 2.01920419458702 for coupled formulation running tension model measured stiffness in tension: 180.234315865766, expected stiffness: 180 difference: 0.23431586576600694 optimized c5 value: 316.26082346664936 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 316.26082346664936 setting k to 2.01920419458702 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 349.9444299542429 Current stiffness in tension: 180.234315865766 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.01615363355669616 setting k to 1.6153633556696159 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 349.157883221903 stiffness in tension after reduction of c1 by 20%: 179.83295995587508 ratio of maximum result change/c1 change: 0.011238166191740005 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.0201920419458702 setting c5 to 316.26082346664936 setting k to 2.01920419458702 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.0201920419458702 setting c5 to 316.26082346664936 setting k to 2.01920419458702 for coupled formulation final results: c1 = 0.0201920419458702 c5 = 316.26082346664936 k = 2.01920419458702 stiffness in tension: 180.234315865766 compression reaction force: 0.504327506871279 ================================================================================== 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: 59.62986381964996 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.0163508674604537 setting c5 to 535 setting k to 16.350867460453703 for coupled formulation total reaction force in compression: 0.5003655062271979 calibrated c1 value: 0.0163508674604537 ---------------------------------------- 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 0.0163508674604537 setting k to 16.350867460453703 for coupled formulation running tension model measured stiffness in tension: 305.68105174905924, expected stiffness: 180 difference: 125.68105174905924 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 315.03424713107484 setting c1 to 0.0163508674604537 setting k to 16.350867460453703 for coupled formulation running tension model measured stiffness in tension: 180.45583342358594, expected stiffness: 180 difference: 0.45583342358594336 optimized c5 value: 315.03424713107484 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 315.03424713107484 setting k to 16.350867460453703 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 350.47679742031426 Current stiffness in tension: 180.45583342358594 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.013080693968362962 setting k to 13.080693968362961 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 349.5377487954627 stiffness in tension after reduction of c1 by 20%: 179.96490625477998 ratio of maximum result change/c1 change: 0.013602418926896334 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.0163508674604537 setting c5 to 315.03424713107484 setting k to 16.350867460453703 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.0163508674604537 setting c5 to 315.03424713107484 setting k to 16.350867460453703 for coupled formulation final results: c1 = 0.0163508674604537 c5 = 315.03424713107484 k = 16.350867460453703 stiffness in tension: 180.45583342358594 compression reaction force: 0.5003655062271979 ================================================================================== 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: 79.76408156093818 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.012223547001605219 setting c5 to 535 setting k to 122.23547001605219 for coupled formulation total reaction force in compression: 0.5000188940040166 calibrated c1 value: 0.012223547001605219 ---------------------------------------- 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 0.012223547001605219 setting k to 122.23547001605219 for coupled formulation running tension model measured stiffness in tension: 310.47223663802316, expected stiffness: 180 difference: 130.47223663802316 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 310.1726616292436 setting c1 to 0.012223547001605219 setting k to 122.23547001605219 for coupled formulation running tension model measured stiffness in tension: 181.60666141202788, expected stiffness: 180 difference: 1.6066614120278757 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 307.42858581929823 setting c1 to 0.012223547001605219 setting k to 122.23547001605219 for coupled formulation running tension model measured stiffness in tension: 180.0356792194632, expected stiffness: 180 difference: 0.03567921946319075 optimized c5 value: 307.42858581929823 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 307.42858581929823 setting k to 122.23547001605219 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 350.9704266701113 Current stiffness in tension: 180.0356792194632 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.009778837601284176 setting k to 97.78837601284175 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 349.0467186079823 stiffness in tension after reduction of c1 by 20%: 179.0724714009381 ratio of maximum result change/c1 change: 0.02740555778987523 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.012223547001605219 setting c5 to 307.42858581929823 setting k to 122.23547001605219 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.012223547001605219 setting c5 to 307.42858581929823 setting k to 122.23547001605219 for coupled formulation final results: c1 = 0.012223547001605219 c5 = 307.42858581929823 k = 122.23547001605219 stiffness in tension: 180.0356792194632 compression reaction force: 0.5000188940040166