================================================================================== 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: 31.44228054928586 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.03100920108106296 setting c5 to 535 setting k to 0.03100920108106296 for coupled formulation total reaction force in compression: 0.5175838237203709 calibrated c1 value: 0.03100920108106296 ---------------------------------------- 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 0.03100920108106296 setting k to 0.03100920108106296 for coupled formulation running tension model measured stiffness in tension: 284.58960246358146, expected stiffness: 220 difference: 64.58960246358146 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 413.5780048923674 setting c1 to 0.03100920108106296 setting k to 0.03100920108106296 for coupled formulation running tension model measured stiffness in tension: 220.1138475330106, expected stiffness: 220 difference: 0.11384753301061323 optimized c5 value: 413.5780048923674 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 413.5780048923674 setting k to 0.03100920108106296 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 410.8704355645463 Current stiffness in tension: 220.1138475330106 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.02480736086485037 setting k to 0.02480736086485037 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 409.75834685946296 stiffness in tension after reduction of c1 by 20%: 219.49304937670965 ratio of maximum result change/c1 change: 0.014101751508565638 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.03100920108106296 setting c5 to 413.5780048923674 setting k to 0.03100920108106296 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.03100920108106296 setting c5 to 413.5780048923674 setting k to 0.03100920108106296 for coupled formulation final results: c1 = 0.03100920108106296 c5 = 413.5780048923674 k = 0.03100920108106296 stiffness in tension: 220.1138475330106 compression reaction force: 0.5175838237203709 ================================================================================== 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: 42.71607204893727 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.02282513239707528 setting c5 to 535 setting k to 0.22825132397075282 for coupled formulation total reaction force in compression: 0.515500986012636 calibrated c1 value: 0.02282513239707528 ---------------------------------------- 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 0.02282513239707528 setting k to 0.22825132397075282 for coupled formulation running tension model measured stiffness in tension: 283.8379477832922, expected stiffness: 220 difference: 63.83794778329218 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 414.67323491876056 setting c1 to 0.02282513239707528 setting k to 0.22825132397075282 for coupled formulation running tension model measured stiffness in tension: 219.96109243331568, expected stiffness: 220 difference: -0.0389075666843155 optimized c5 value: 414.67323491876056 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 414.67323491876056 setting k to 0.22825132397075282 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 410.5794989828401 Current stiffness in tension: 219.96109243331568 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.018260105917660224 setting k to 0.18260105917660224 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 409.7000256638996 stiffness in tension after reduction of c1 by 20%: 219.47435936784137 ratio of maximum result change/c1 change: 0.011064071834019269 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.02282513239707528 setting c5 to 414.67323491876056 setting k to 0.22825132397075282 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.02282513239707528 setting c5 to 414.67323491876056 setting k to 0.22825132397075282 for coupled formulation final results: c1 = 0.02282513239707528 c5 = 414.67323491876056 k = 0.22825132397075282 stiffness in tension: 219.96109243331568 compression reaction force: 0.515500986012636 ================================================================================== 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: 51.6045786271916 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.018893672343373243 setting c5 to 535 setting k to 1.8893672343373242 for coupled formulation total reaction force in compression: 0.5101068358736237 calibrated c1 value: 0.018893672343373243 ---------------------------------------- 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 0.018893672343373243 setting k to 1.8893672343373242 for coupled formulation running tension model measured stiffness in tension: 283.83060600786575, expected stiffness: 220 difference: 63.830606007865754 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 414.6839611678037 setting c1 to 0.018893672343373243 setting k to 1.8893672343373242 for coupled formulation running tension model measured stiffness in tension: 219.9343302768461, expected stiffness: 220 difference: -0.06566972315388853 optimized c5 value: 414.6839611678037 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 414.6839611678037 setting k to 1.8893672343373242 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 410.5903080030019 Current stiffness in tension: 219.9343302768461 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.015114937874698595 setting k to 1.5114937874698595 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 409.7577495423363 stiffness in tension after reduction of c1 by 20%: 219.47384668867323 ratio of maximum result change/c1 change: 0.010468660976966075 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.018893672343373243 setting c5 to 414.6839611678037 setting k to 1.8893672343373242 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.018893672343373243 setting c5 to 414.6839611678037 setting k to 1.8893672343373242 for coupled formulation final results: c1 = 0.018893672343373243 c5 = 414.6839611678037 k = 1.8893672343373242 stiffness in tension: 219.9343302768461 compression reaction force: 0.5101068358736237 ================================================================================== 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: 66.17529545963508 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.014733594965128948 setting c5 to 535 setting k to 14.733594965128948 for coupled formulation total reaction force in compression: 0.5013639407556151 calibrated c1 value: 0.014733594965128948 ---------------------------------------- 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 0.014733594965128948 setting k to 14.733594965128948 for coupled formulation running tension model measured stiffness in tension: 284.92094397884165, expected stiffness: 220 difference: 64.92094397884165 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 413.09704494289633 setting c1 to 0.014733594965128948 setting k to 14.733594965128948 for coupled formulation running tension model measured stiffness in tension: 220.06441304071024, expected stiffness: 220 difference: 0.06441304071023524 optimized c5 value: 413.09704494289633 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 413.09704494289633 setting k to 14.733594965128948 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 410.8603419849621 Current stiffness in tension: 220.06441304071024 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.011786875972103159 setting k to 11.786875972103159 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 409.8482796291818 stiffness in tension after reduction of c1 by 20%: 219.49410758834082 ratio of maximum result change/c1 change: 0.012957693715428412 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.014733594965128948 setting c5 to 413.09704494289633 setting k to 14.733594965128948 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.014733594965128948 setting c5 to 413.09704494289633 setting k to 14.733594965128948 for coupled formulation final results: c1 = 0.014733594965128948 c5 = 413.09704494289633 k = 14.733594965128948 stiffness in tension: 220.06441304071024 compression reaction force: 0.5013639407556151 ================================================================================== 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: 100.33676544851345 changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.00971727557333218 setting c5 to 535 setting k to 97.1727557333218 for coupled formulation total reaction force in compression: 0.5000874756620085 calibrated c1 value: 0.00971727557333218 ---------------------------------------- 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 0.00971727557333218 setting k to 97.1727557333218 for coupled formulation running tension model measured stiffness in tension: 289.9525524773153, expected stiffness: 220 difference: 69.9525524773153 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 405.9284837963562 setting c1 to 0.00971727557333218 setting k to 97.1727557333218 for coupled formulation running tension model measured stiffness in tension: 220.87788034537397, expected stiffness: 220 difference: 0.877880345373967 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 404.31511881388235 setting c1 to 0.00971727557333218 setting k to 97.1727557333218 for coupled formulation running tension model measured stiffness in tension: 220.01440412627332, expected stiffness: 220 difference: 0.014404126273319662 optimization stopped optimized c5 value: 404.31511881388235 ---------------------------------------- running tension model with optimized c5 changing material properties in the following file: FeBio_custom_tension.feb setting c5 to 404.31511881388235 setting k to 97.1727557333218 for coupled formulation Checking that tension results are not sensitive to change in c1 Current total reaction force in tension: 411.4550917220493 Current stiffness in tension: 220.01440412627332 changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.007773820458665744 setting k to 77.73820458665745 for coupled formulation total reaction force in tension after reduction of c1 by 20%: 409.24754660351965 stiffness in tension after reduction of c1 by 20%: 218.80233520815733 ratio of maximum result change/c1 change: 0.027545217389956515 running compression and tension model with final calibrated results changing material properties in the following file: FeBio_custom_compression.feb setting c1 to 0.00971727557333218 setting c5 to 404.31511881388235 setting k to 97.1727557333218 for coupled formulation changing material properties in the following file: FeBio_custom_tension.feb setting c1 to 0.00971727557333218 setting c5 to 404.31511881388235 setting k to 97.1727557333218 for coupled formulation final results: c1 = 0.00971727557333218 c5 = 404.31511881388235 k = 97.1727557333218 stiffness in tension: 220.01440412627332 compression reaction force: 0.5000874756620085