sig_fl_calib = SigFlCalib(# concrete strength after 9 days
                               #
                               f_ck = 55.7,

                               # measured strain at bending test rupture (0-dir)
                               #
                               eps_c_fail = 3.3 / 1000.,

                               # measured value in bending test [kNm]
                               # value per m: M = 5*3.49
                               #
                               M_fail = 3.49,
                           
                               # values for experiment beam with width = 0.20 m
                               #
                               width = 0.20,
                               n_roving = 23.,

                               # define shape of the crack-bridge law ('linear', 'bilinear' or 'quadratic')
                               #
#                               calib_config = 'root2',
#                               calib_config = 'quadratic',
#                               calib_config = 'linear',  
#                               calib_config = 'quadratic_eps_max', 
#                               calib_config = 'quadratic_monoton', 
#                               calib_config = 'quadratic_TT',  
#                               calib_config = 'plastic', 
                               calib_config = 'cubic',

                               # define shape of the concrete stress-strain-law ('block', 'bilinear' or 'quadratic')
                               #
                               sig_c_config = 'quadratic'
#                               sig_c_config = 'bilinear'
#                               sig_c_config = 'block'
                              )
    sig_fl_calib = SigFlCalib( # concrete strength after 9 days
                               #
                               f_ck = 55.7,

                               # measured strain at bending test rupture (0-dir)
                               #
                               eps_c_fail = 3.3 / 1000.,

                               # measured value in bending test [kNm]
                               # value per m: M = 5*3.49
                               #
                               M_fail = 3.49,
                           
                               # values for experiment beam with width = 0.20 m
                               #
                               width = 0.20,
                               n_roving = 23.,

                               # define shape of the crack-bridge law ('linear', 'bilinear' or 'quadratic')
                               #
#                               calib_config = 'root2',
#                               calib_config = 'quadratic',
#                               calib_config = 'linear',  
#                               calib_config = 'quadratic_eps_max', 
#                               calib_config = 'quadratic_monoton', 
#                               calib_config = 'quadratic_TT',  
#                               calib_config = 'plastic', 
                               calib_config = 'fbm',

                               # define shape of the concrete stress-strain-law ('block', 'bilinear' or 'quadratic')
                               #
                              sig_c_config = 'quadratic'
#                               sig_c_config = 'bilinear'
#                               sig_c_config = 'block'
                              )
    sig_fl_calib = SigFlCalib(# concrete strength after 9 days
                               #
                               f_ck=55.7,

                               # measured strain at bending test rupture (0-dir)
                               #
#                               eps_c_fail=3.3 / 1000.,
                               eps_c_fail=3.0 / 1000.,

                               # measured value in bending test [kNm]
                               # value per m: M = 5*3.49
                               #
#                               M_fail=3.49,
                               M_fail=0.12,

                               A_roving=0.446,
                               sig_tex_fail=1569.,

                               # values for experiment beam with width = 0.20 m
                               #
                               width=0.20,
                               n_roving=23.,

                               # define shape of the crack-bridge law ('linear', 'bilinear' or 'quadratic')
                               #
#                               calib_config = 'root2',
#                               calib_config = 'quadratic',
#                               calib_config = 'linear',
#                               calib_config = 'quadratic_eps_max',
#                               calib_config = 'quadratic_monoton',
#                               calib_config = 'quadratic_TT',
#                               calib_config = 'plastic',
#                               calib_config='bilinear',
#                               calib_config='cubic',
                               calib_config='fbm',

                               # define shape of the concrete stress-strain-law ('block', 'bilinear' or 'quadratic')
                               #
                               sig_c_config='quadratic'
#                               sig_c_config = 'bilinear'
#                               sig_c_config = 'block'
                              )