Certain Question Research on Nonlinear Finite Element Analysis of High Arch Dam

2014 ◽  
Vol 610 ◽  
pp. 3-6
Author(s):  
Zhi Qiang Wang ◽  
Ke Hong Zheng
Keyword(s):  
Finite Element ◽  
Constitutive Relations ◽  
Safety Evaluation ◽  
Mesh Size ◽  
Nonlinear Finite Element ◽  
Arch Dam ◽  
High Arch Dam ◽  
Element Analysis ◽  
Work Condition ◽  
Strength Criteria

The nonlinear finite element can precisely simulate practical work condition of arch dam, but also has some problems in the safety evaluation of high arch dam, mainly in different mesh size, different strength criteria and constitutive relations of dam corresponding to different results. This article first proposes determining method for reasonable mesh size describes three strength criterions of uniaxial, biaxial, triaxial, gives two constitutive relations of dam cracking, damage. Take a high arch dam as an example, has done some research on the above question, obtain some beneficial conclusions.

scholarly journals Nonlinear finite element analysis of profiled steel deck composite slab system under monotonic loading.

2021 ◽  
Author(s):  
Shubhangi Attarde
Keyword(s):  
Finite Element ◽  
Mesh Size ◽  
Monotonic Loading ◽  
Nonlinear Finite Element ◽  
Experimental Results ◽  
Model Parameters ◽  
Element Analysis ◽  
Composite Slab ◽  
Composite Slabs ◽  
Steel Deck

This research concentrated on the nonlinear finite element (FE) modeling of one-way composite floor slab system comprising of profiled steel deck and two types of concrete namely, Engineered Cementitious Composites (ECC) and Self-Consolidating Concrete (SCC). Two FE models were developed based experimental results of composite slabs subjected to in-plane monotonic loading. The simulated load-deflection response, moment resistance, and shear bond capacity using two FE models were in reasonable good agreement with experimental results. The FE models were used in a comprehensive parametric study to investigate the effect of numerical model parameters such as mesh size, dilation angle, steel sheet-concrete interaction contact, material properties and composite slab span. In addition, FE models were used to determine shear bond parameters of ECC and SCC composite slabs that can be used for design purposes.

A Progressive Damage Modeling Based on the Continuum Damage Mechanics and its Finite Element Analysis

1994 ◽  
Vol 61 (1) ◽  
pp. 45-53 ◽  
Author(s):  
Seung Jo Kim ◽  
Wie Dae Kim
Keyword(s):  
Finite Element ◽  
Damage Mechanics ◽  
Constitutive Relations ◽  
Computational Simulation ◽  
Nonlinear Finite Element ◽  
Element Approximation ◽  
Continuum Damage ◽  
Damage Modeling ◽  
Element Analysis ◽  
Highly Nonlinear

A continuum damage modeling based on the theory of materials of type N is proposed and its nonlinear finite element approximation and numerical simulation are carried out. To solve the finite elastoplasticity problems, the reasonable kinematical strain measure for large deformed solids are introduced and constitutive relations based on the theory of materials of type N are derived. These highly nonlinear equations are reduced to the incremental weak formulation and approximated by the theory of nonlinear finite element method. To verify the theory and the computer code, the computational simulation of the uniaxial elongation is carried out and the results are compared with the actual experiment. Two example problems, bending problem and billet forming problem, are simulated, and the deformed shapes and the progressive results of the damage variable are presented.

scholarly journals Nonlinear finite element analysis of profiled steel deck composite slab system under monotonic loading.

2021 ◽  
Author(s):  
Shubhangi Attarde
Keyword(s):  
Finite Element ◽  
Mesh Size ◽  
Monotonic Loading ◽  
Nonlinear Finite Element ◽  
Experimental Results ◽  
Model Parameters ◽  
Element Analysis ◽  
Composite Slab ◽  
Composite Slabs ◽  
Steel Deck

This research concentrated on the nonlinear finite element (FE) modeling of one-way composite floor slab system comprising of profiled steel deck and two types of concrete namely, Engineered Cementitious Composites (ECC) and Self-Consolidating Concrete (SCC). Two FE models were developed based experimental results of composite slabs subjected to in-plane monotonic loading. The simulated load-deflection response, moment resistance, and shear bond capacity using two FE models were in reasonable good agreement with experimental results. The FE models were used in a comprehensive parametric study to investigate the effect of numerical model parameters such as mesh size, dilation angle, steel sheet-concrete interaction contact, material properties and composite slab span. In addition, FE models were used to determine shear bond parameters of ECC and SCC composite slabs that can be used for design purposes.

Influence Factors of High dam Reservoir Basin Deformation Based on Finite Element Analysis and Weights Analysis

2014 ◽  
Vol 919-921 ◽  
pp. 1354-1360 ◽  
Author(s):  
Hao Gu ◽  
Xiao Fei Huang ◽  
Jing Ding
Keyword(s):  
Finite Element ◽  
Influence Factors ◽  
Arch Dam ◽  
Impact Factors ◽  
Dam Reservoir ◽  
High Arch Dam ◽  
Analytic Hierarchy ◽  
Element Analysis ◽  
River Reservoir ◽  
Reservoir Basin

This paper describes the principle and analysis method of reservoir basin finite element calculation. Taking the forked river as an example, this paper illustrates the factors of high arch dam reservoir basin deformation and weight analysis methods through the finite element modeling calculation and analysis of the influence of high arch dam reservoir basin deformation and calculates the weights of impact factors of forked river reservoir basin deformation using the analytic hierarchy process method and then compare in order to gain the conclusion.

Viscoelastic Model of Finitely Deforming Rubber and Its Finite Element Analysis

1997 ◽  
Vol 64 (4) ◽  
pp. 835-841 ◽  
Author(s):  
Seung Jo Kim ◽  
Kyeong Su Kim ◽  
Jin Yeon Cho
Keyword(s):  
Finite Element ◽  
Continuum Mechanics ◽  
Constitutive Relations ◽  
Viscoelastic Model ◽  
Finite Element Approximation ◽  
Nonlinear Finite Element ◽  
Element Approximation ◽  
Extended Model ◽  
Element Analysis ◽  
Highly Nonlinear

A viscoelastic model of finitely deforming rubber is proposed and its nonlinear finite element approximation and numerical simulation are carried out. This viscoelastic model based on continuum mechanics is an extended model of Johnson and Quigley’s one-dimensional model. In the extended model, the kinematic configurations and measures based on continuum mechanics are rigorously defined and by using these kinematic measures, constitutive relations are introduced. The obtained highly nonlinear equations are approximated by the nonlinear finite element method, where a mixture of the total and updated Lagrangian descriptions is used. To verify the theory and the computer code, uniaxial stretch tests are simulated for various stretch rates and compared with actual experiments. As a practical example, an axisymmetric rubber plate under various time-dependent pressure loading conditions is analyzed.

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