BWBN Material: Difference between revisions
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This command is used to construct a uniaxial Bouc-Wen | 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)). | ||
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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 | 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 | ||
Raquibul Hossain and Mahmud Ashraf (2012). "Mathematical modelling of yielding shear panel device", Thin-Walled Structures, Volume 59, October 2012, Pages 153–161 | Raquibul Hossain and Mahmud Ashraf (2012). "Mathematical modelling of yielding shear panel device", Thin-Walled Structures, Volume 59, October 2012, Pages 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 | |||
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 06:02, 20 October 2013
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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:
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
Raquibul Hossain and Mahmud Ashraf (2012). "Mathematical modelling of yielding shear panel device", Thin-Walled Structures, Volume 59, October 2012, Pages 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