Reinforced concrete hysteresis model based on the damage concept

1987 ◽  
Vol 15 (8) ◽  
pp. 993-1003 ◽  
Author(s):  
Ming-Liang Wang ◽  
Surendra P. Shah
Keyword(s):  
Reinforced Concrete ◽  
Hysteresis Model ◽  
Model Based

An Improved Method of Jiles-Atherton Hysteresis Model Based on Variable Time-Step Simulation

2021 ◽  
Author(s):  
Yinguo Yang ◽  
Liling Xiang ◽  
Yitan Guo ◽  
Zhendong Tan ◽  
Yankan Song
Keyword(s):  
Hysteresis Model ◽  
Improved Method ◽  
Time Step ◽  
Variable Time ◽  
Model Based ◽  
Variable Time Step

A new anisotropic vector hysteresis model based on stop hysterons

2005 ◽  
Vol 41 (5) ◽  
pp. 1500-1503 ◽  
Author(s):  
J.V. Leite ◽  
N. Sadowski ◽  
P. Kuo-Peng ◽  
J.P.A. Bastos
Keyword(s):  
Hysteresis Model ◽  
Model Based

Inelastic Analysis of Reinforced Concrete Shear Wall Structures Under Seismic Excitation

1993 ◽  
Author(s):  
Ming L. Wang
Keyword(s):  
Reinforced Concrete ◽  
Response Spectra ◽  
Shear Wall ◽  
Stiffness Degradation ◽  
Structural Stiffness ◽  
Hysteresis Model ◽  
Safety Equipment ◽  
Floor Response Spectra ◽  
Wall Structures ◽  
Degradation Models

Abstract During strong ground motions, members of reinforced concrete structures undergo cyclic deformations and experience permanent damage. Members may lose their initial stiffness as well as strength. Recently, Los Alamos National Laboratory has performed experiments on scale models of shear wall structures subjected to recorded earthquake signals. In general, the results indicated that the measured structural stiffness decreased with increased levels of excitation in the linear response region. Furthermore, a significant reduction in strength as well as in stiffness was also observed in the inelastic range. Since the in-structure floor response spectra, which are used to design and qualify safety equipment, have been based on calculated structural stiffness and frequencies, it is possible that certain safety equipment could experience greater seismic loads than specified for qualification due to stiffness reduction. In this research, a hysteresis model based on the concept of accumulated damage has been developed to account for this stiffness degradation both in the linear and inelastic ranges. Single and three degrees of freedom seismic Category I structures were analyzed and compared with equivalent linear stiffness degradation models in terms of maximum displacement responses, permanent displacement, and floor response spectra. The results indicate significant differences in responses between the hysteresis model and equivalent linear stiffness degradation models. The hysteresis model is recommended in the analysis of reinforced concrete shear-wall structures to obtain the in-structure floor response spectra for equipment qualification. Results of both cumulative and one shot tests are compared.

scholarly journals Hysteretic Behavior of Steel Reinforced Concrete Columns Based on Damage Analysis

2019 ◽  
Vol 9 (4) ◽  
pp. 687 ◽  
Author(s):  
Bin Wang ◽  
Guang Huo ◽  
Yongfeng Sun ◽  
Shansuo Zheng
Keyword(s):  
Reinforced Concrete ◽  
Damage Index ◽  
Hysteresis Loops ◽  
Time History ◽  
Hysteretic Behavior ◽  
Loading Path ◽  
Test Results ◽  
Hysteresis Model ◽  
Skeleton Curve ◽  
Steel Reinforced Concrete

With the aim to model the seismic behavior of steel reinforced concrete (SRC) frame columns, in this research, hysteresis and skeleton curves were obtained based on the damage test results of SRC frame columns under low cyclic repeat loading and the hysteretic behavior of the frame columns was further analyzed. Then, the skeleton curve and hysteresis loops were further simplified. The simplified skeleton curve model was obtained through the corresponding feature points obtained by mechanical and regression analysis. The nonlinear combination seismic damage index, which was developed by the test results and can well reflect the effect of the loading path and the number of loading cycle of SRC frame columns, was used to establish the cyclic degradation index. The strength and stiffness degradation rule of the SRC frame columns was analyzed further by considering the effect of the accumulated damage caused by an earthquake. Finally, the hysteresis model of the SRC frame columns was established, and the specific hysteresis rules were given. The validity of the developed hysteresis model was verified by e comparison between the calculated results and the test results. The results showed that the model could describe the hysteresis characteristics of the SRC frame columns under cyclic loading and provide guidance for the elastoplastic time-history analysis of these structures.

A dynamic hysteresis model based on Landau phenomenological theory of fatigue phenomenon in ferroelectrics

2020 ◽  
Vol 25 ◽  
pp. 101479 ◽  
Author(s):  
Xuan He ◽  
Haoyuan Du ◽  
Zheng Tong ◽  
Dan Wang ◽  
Linxiang Wang ◽  
...  
Keyword(s):  
Phenomenological Theory ◽  
Hysteresis Model ◽  
Dynamic Hysteresis ◽  
Model Based

A SIMPLE DYNAMIC PREISACH HYSTERESIS MODEL FOR FeSi MATERIALS

2003 ◽  
Vol 17 (11) ◽  
pp. 2325-2331
Author(s):  
M. LU ◽  
P. J. LEONARD ◽  
P. MARKETOS ◽  
T. MEYDAN ◽  
A. J. MOSES
Keyword(s):  
Applied Field ◽  
Hysteresis Loops ◽  
Cosine Function ◽  
Preisach Model ◽  
Common Phenomenon ◽  
Hysteresis Model ◽  
Dynamic Hysteresis ◽  
Model Based ◽  
Hysteresis Operator ◽  
Preisach Hysteresis

Dynamic hysteresis property is a common phenomenon in FeSi materials under time-varied applied field. This paper presented a dynamic hysteresis model based on Preisach scheme. The rectangular-shaped elementary hysteresis operator with two states in classical Preisach model is replaced by a non-rectangular shaped one with multiple states. The output of each state is calculated by a cosine function. The proposed dynamic hysteresis model is experimently tested by comparing the simulated hysteresis loops to experimental ones. The model can be used to describe the dynamic hysteresis in FeSi material for magnetizing frequencies from quasi-static to several hundred Hertz.

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