原文传递
Reformulation of Concentrated Plasticity Frame Element with N-M Interaction and Generalized Plasticity
| 题名： | Reformulation of Concentrated Plasticity Frame Element with N-M Interaction and Generalized Plasticity |
| 正文语种： | eng |
| 作者： | Theodore L. Chang;Chin-Long Lee |
| 作者单位： | Humboldt-Universität zu Berlin;Univ. of Canterbury |
| 关键词： | Concentrated plasticity frame element;N-M interaction;Generalized plasticity theory;Hysteresis model |
| 摘要： | Abstract The concept of generalized plasticity theory provides an appealing approach to developing efficient finite element models that can improve computational performance and allow flexibility in customizing plastic response. In this work, we revisit its application in developing frame elements and reformulate a concentrated plasticity frame element to allow its axial force to interact with its end moments (N-M interaction). The proposed element formulation relies on the physical implication of axial plasticity and updates its definition accordingly. Inasmuch, a single axial plasticity history can participate in plasticity evolution and N-M interaction at both ends. The new formulation also redefines the hardening rules to recover desired hardening behavior, which is not available in the previous formulation. In terms of numerical performance, the new formulation removes the potential bifurcation issue when both ends experience identical pure axial plasticity history. The proposed frame element is a high-performing alternative to simulate zero-length plastic hinge frame members that are frequently used in simulations in seismic engineering. |
| 出版年： | 2024 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 150 |
| 期： | 1 |
| 页码： | 1.1-1.15 |
相关文献
- New Multiaxial Concrete Column Element with Adaptive Calibrated Constitutive Models
- Objective Phenomenological Constitutive Law for Collapse Analyses in Distributed Plasticity Steel-Frame Models
- Deterioration Modeling of Steel Moment Resisting Frames Using Finite-Length Plastic Hinge Force-Based Beam-Column Elements
- Concrete Uniaxial Non local Damage-Plasticity Model for Simulating Post-Peak Response of Reinforced Concrete Beam-Columns under Cyclic Loading
- Fiber-Based Nonlocal Formulation for Simulating Softening in Reinforced Concrete Beam-Columns
- Modeling Techniques for Strain-Range-Dependent Hardening Behavior of Low-Yield-Point Steel Shear Panel Dampers
检索历史
应用推荐
