Consistent element coupling in nonlinear static and dynamic analyses using explicit solvers

Ho, Rong-Tai; Meguid, S. A.; Zhu, Zheng H.; Sauvé, R. G.

doi:10.1007/s10999-010-9139-x

Cited by 7 publications

(6 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One limitation of transition elements is that they are typically less efficient than MPC approaches due to the proliferation of elements that connect all the nodes across both domains at the interface. Further limitations of transition elements include a proclivity to locking, and the need to treat such effects (Ho et al 2010).…”

Section: Review Of Coupling Methodsmentioning

confidence: 99%

Warping-Inclusive Kinematic Coupling in Mixed-Dimension Macro Models for Steel Wide Flange Beam Columns

Hartloper¹,

Sousa²,

Lignos³

2022

J. Struct. Eng.

View full text Add to dashboard Cite

A warping-inclusive kinematic coupling method to be used in finite element analysis of members featuring wide-flange cross-sections is proposed in this paper. This coupling method is used in mixed-dimension macro models that combine continuum and beam-column elements to reduce the computational cost of purely continuum finite element models. The proposed coupling method, utilizing either linear or nonlinear constraint equations, is implemented and validated in a commercial finite element software; the source code is made publicly available. Case studies indicate that including warping in the coupling formulation is critical for components that may experience coupled local and lateral-torsional buckling. Also highlighted is the potential of macro models to reduce the total degrees-of-freedom by up-to about 60 %, and computational memory use by up-to around 80 %, while retaining solution fidelity for beam, column, and panel zone components in 1Hartloper, November 13, 2020 steel moment-resting frames. The case studies show that the linear constraint equation formulation may not be suitable for all problems, however, it may still yield acceptable results as long as the level of twisting is insignificant and lateral-torsional buckling is not critical.

show abstract

Section: Review Of Coupling Methodsmentioning

confidence: 99%

Warping-Inclusive Kinematic Coupling in Mixed-Dimension Macro Models for Steel Wide Flange Beam Columns

Hartloper¹,

Sousa²,

Lignos³

2022

J. Struct. Eng.

View full text Add to dashboard Cite

show abstract

“…The first one is based on the use of transition elements. According to Ho et al [17], many works on the transition elements have been done on shell/solid transitions with very limited work on beam/solid and beam/shell connections. In addition, transition elements are often prone to locking.…”

Section: Introductionmentioning

confidence: 99%

“…To try to avoid this problem, reduced integration can be used which leads to the introduction of hourglass modes. Due to these limitations, the transition elements have not been widely used [17]. Thus, we will consider the second category of elements coupling which consists in imposing constraint equations.…”

Section: Introductionmentioning

confidence: 99%

“…Multi-point constraints (MPC) enforce a relationship between two or more DOF in contrast to single-point constraints. Transformation equations, penalty functions and Lagrange multipliers are the three main methods encountered in the literature that are used to impose MPC equations as explained in [17]. Among the various approaches which can be used, the Lagrange multiplier method makes it possible to ensure a high precision.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

1D/3D Finite-Volume coupling in conjunction with beam/shell elements coupling for fast transients in pipelines with fluid–structure interaction

Daude

Douillet-Grellier

2021

Journal of Fluids and Structures

View full text Add to dashboard Cite

“…The MPC method is attractive for mixed-dimensional coupling by imposing constraint equations for nodal displacements at the interface. The MPC method can be used for static and dynamic analysis of linear or nonlinear structures [27][28][29]. In commercial FE software, MPC can be easily used for coupling different types of elements.…”

Section: Introductionmentioning

confidence: 99%

Concurrent Multi-Scale Modeling of a Transmission Tower Structure and Its Experimental Verification

Wang¹,

Xu²,

Zhan³

2017

Volume 13 Number 3

View full text Add to dashboard Cite

ABSTRACT:The interruption of electrical service due to failure of transmission tower structures can have devastating economic and social consequences. The current method for analyzing transmission tower structures is often to treat the angle members of the tower as either pin-ended truss elements or fix-ended beam elements. This approach ignores the effects of joint flexibility, local geometric and material nonlinearity, bolt slippage and deformation, making the structural analysis and design of the tower inadequate. In an effort to improve the structural analysis of transmission tower structures, this study aims at developing a multi-scale modeling method for transmission tower structures, in which critical joints of the tower are modeled using solid elements in a great detail while other members are modeled with common beam elements. The critical joint model includes gusset plates, angle members and bolts. The effects of local geometric and material nonlinearity and the contact problem between the bolts, plates and angles are all taken into consideration. New multi-point constraints for beam-to-solid connections at interface developed by the authors are used to couple the critical local joint model with the beam elements to form a multi-scale model of the tower. To verify the multi-scale modeling method, a physical model of a transmission tower structure was constructed and tested. The displacement and strain response of the tower model measured from the static tests are compared with the numerical results. The dynamic characteristics of the tower model identified from the dynamic tests are also compared with the numerical results. The comparative results show that the multi-scale modeling method is feasible and accurate for simultaneously predicting both global and local responses as well as estimating dynamic characteristics of the transmission tower structure.

show abstract

Consistent element coupling in nonlinear static and dynamic analyses using explicit solvers

Cited by 7 publications

References 28 publications

Warping-Inclusive Kinematic Coupling in Mixed-Dimension Macro Models for Steel Wide Flange Beam Columns

Warping-Inclusive Kinematic Coupling in Mixed-Dimension Macro Models for Steel Wide Flange Beam Columns

1D/3D Finite-Volume coupling in conjunction with beam/shell elements coupling for fast transients in pipelines with fluid–structure interaction

Concurrent Multi-Scale Modeling of a Transmission Tower Structure and Its Experimental Verification

Contact Info

Product

Resources

About