BWBN Material: Difference between revisions

From OpenSeesWiki
Jump to navigation Jump to search
mNo edit summary
mNo edit summary
Line 33: Line 33:
REFERENCES:
REFERENCES:


Raquibul Hossain, Mahmud Ashraf, Jamie E. Padgett (2013). "Risk-based seismic performance assessment of Yielding Shear Panel Device", Engineering Structures, Volume 56, November 2013, Pages 1570–1579
Hossain, M. R., Ashraf, M., & Padgett, J. E. (2013). "Risk-based seismic performance assessment of Yielding Shear Panel Device." Engineering Structures, 56, 1570-1579.


Raquibul Hossain and Mahmud Ashraf (2012). "Mathematical modelling of yielding shear panel device", Thin-Walled Structures, Volume 59, October 2012, Pages 153–161
Hossain, M. R., & Ashraf, M. (2012). "Mathematical modelling of yielding shear panel device." Thin-Walled Structures, 59, 153-161.


Baber, T. T., & Noori, M. N. (1986). Modeling general hysteresis behavior and random vibration application. Journal of Vibration Acoustics Stress and Reliability in Design, 108, 411
Baber, T. T., & Noori, M. N. (1986). "Modeling general hysteresis behavior and random vibration application." Journal of Vibration Acoustics Stress and Reliability in Design, 108, 411.


Bouc, R. (1971). "Mathematical model for hysteresis." Report to the Centre de Recherches Physiques, pp16-25, Marseille, France
Bouc, R. (1971). "Mathematical model for hysteresis." Report to the Centre de Recherches Physiques, pp16-25, Marseille, France.


Wen, Y.-K. (1976). \Method for random vibration of hysteretic systems." Journal of Engineering Mechanics Division, 102(EM2), 249-263
Wen, Y.-K. (1976). "Method for random vibration of hysteretic systems." Journal of Engineering Mechanics Division, 102(EM2), 249-263.




DEVELOPED BY:
DEVELOPED BY:
Raquibul Hossain, The University of Queensland, Australia
Raquibul Hossain, The University of Queensland, Australia

Revision as of 06:08, 20 October 2013




This command is used to construct a uniaxial Bouc-Wen hysteretic material object that incorporates pinching. This material model is an extension of the original Bouc-Wen model that includes pinching (Baber and Noori (1986)).

uniaxialMaterial BWBN $matTag $alpha $ko $n $gamma $beta $Ao $q $zetas $p $Shi $deltaShi $lambda $tol $maxIter

$matTag integer tag identifying material
$alpha ratio of post-yield stiffness to the initial elastic stiffenss (0< <math>\alpha</math> <1)
$ko initial elastic stiffness
$n parameter that controls transition from linear to nonlinear range (as n increases the transition becomes sharper; n is usually grater or equal to 1)
$gamma $beta parameters that control shape of hysteresis loop; depending on the values of <math>\gamma</math> and <math>\beta</math> softening, hardening or quasi-linearity can be simulated (look at the BoucWen Material)
$Ao parameter that controls tangent stiffness
$q $zetas $p $Shi $deltaShi $lambda parameters that control pinching
$tol tolerance
$maxIter maximum iterations


REFERENCES:

Hossain, M. R., Ashraf, M., & Padgett, J. E. (2013). "Risk-based seismic performance assessment of Yielding Shear Panel Device." Engineering Structures, 56, 1570-1579.

Hossain, M. R., & Ashraf, M. (2012). "Mathematical modelling of yielding shear panel device." Thin-Walled Structures, 59, 153-161.

Baber, T. T., & Noori, M. N. (1986). "Modeling general hysteresis behavior and random vibration application." Journal of Vibration Acoustics Stress and Reliability in Design, 108, 411.

Bouc, R. (1971). "Mathematical model for hysteresis." Report to the Centre de Recherches Physiques, pp16-25, Marseille, France.

Wen, Y.-K. (1976). "Method for random vibration of hysteretic systems." Journal of Engineering Mechanics Division, 102(EM2), 249-263.


DEVELOPED BY: Raquibul Hossain, The University of Queensland, Australia