4.14.2.11. ConcreteCM¶
- uniaxialMaterial('ConcreteCM', matTag, fpcc, epcc, Ec, rc, xcrn, ft, et, rt, xcrp, mon, '-GapClose', GapClose=0)
This command is used to construct a uniaxialMaterial ConcreteCM (Kolozvari et al., 2015), which is a uniaxial hysteretic constitutive model for concrete developed by Chang and Mander (1994).
matTag
(int)integer tag identifying material
fpcc
(float)Compressive strength (\(f'_c\))
epcc
(float)Strain at compressive strength (\(\epsilon'_c\))
Ec
(float)Initial tangent modulus (\(E_c\))
rc
(float)Shape parameter in Tsai’s equation defined for compression (\(r_c\))
xcrn
(float)Non-dimensional critical strain on compression envelope (\(\epsilon^{-}_{cr}\), where the envelope curve starts following a straight line)
ft
(float)Tensile strength (\(f_t\))
et
(float)Strain at tensile strength (\(\epsilon_t\))
rt
(float)Shape parameter in Tsai’s equation defined for tension (\(r_t\))
xcrp
(float)Non-dimensional critical strain on tension envelope (\(\epsilon^{+}_{cr}\), where the envelope curve starts following a straight line - large value [e.g., 10000] recommended when tension stiffening is considered)
mon
optional, monotonic stress-strain relationship only: mon=1 (invoked in FSAM only), mon=0 (no impact since monotonic)
'-GapClose'
(str)optional, denote next parameter is
GapClose
GapClose
(float)optional, GapClose = 0, less gradual gap closure (default); GapClose = 1, more gradual gap closure
See also