Comparison of numerical models for nonlinear static analysis of planar concrete frames based on 1D and 2D finite elements

Radnić, Jure; Markić, Radoslav; Glibić, Mladen; Grgić, Nikola; Banović, Ivan

doi:10.1002/mawe.201600523

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…e adopted isotropic concrete model in Section 4 is described in the study of Radnić et al [26,30], which can simulate yielding of concrete in compression and cracking in tension. e adopted constitutive model for contact elements is described in the study of Radnić et al [26], which can simulate separation and slippage on contact surface.…”

Section: Advances In Materials Science and Engineeringmentioning

confidence: 99%

Anisotropy Effect of Masonry on the Behaviour and Bearing Capacity of Masonry Walls

Zulim

Radnić

2020

Advances in Materials Science and Engineering

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Firstly, an updated numerical model for the numerical analysis of planar unreinforced and confined masonry walls is presented. The model can simulate the main nonlinear material effects of masonry and reinforced concrete. A simplified anisotropic constitutive model for masonry is developed and presented. The criteria for the limit bearing capacity and collapse of masonry are separately defined for normal stresses only and for normal and shear stresses. The presented numerical model is verified and used to analyse the anisotropy effect of masonry on the behaviour of unreinforced and confined two-story anisotropic masonry walls with different coefficients of anisotropy, wall lengths, and quality of masonry under horizontal static forces. The influence of the anisotropy coefficient of the masonry on the response of the walls is discussed in detail, and the main conclusions are given.

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Section: Advances In Materials Science and Engineeringmentioning

confidence: 99%

Anisotropy Effect of Masonry on the Behaviour and Bearing Capacity of Masonry Walls

Zulim

Radnić

2020

Advances in Materials Science and Engineering

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Investigation of critical load of structures using modified energy method in nonlinear-geometry solid mechanics problems

Razaghi

Marnani

Rohanimanesh

2022

Nonlinear Engineering

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Geometrically nonlinear analysis is required for resolving issues such as loading causes failure and structure buckling analysis. Although numerical methods are recommended for estimating the exact solution, they lack the necessary convergence in the presence of bifurcation points, making it challenging to find the equilibrium path using these methods. Thus, the modified energy method is employed instead of the numerical method, frequently used to solve quasi-static problems with nonlinear nature and bifurcation points. The ultimate goal of this study is to determine the critical load of structures through the modified energy method rather than other methods in which the relationship between force, displacement, and constraint is used to solve the problem. This study first describes the energy method for this type of problem and then details its computational steps progressively. This method yields numerical results when applied to numerical examples such as truss and frame structures and coded in MATLAB software. These findings are compared to the analytical results. The energy method is more precise than the alternative methods and superior to the Newton–Raphson method at crossing the load–displacement curve’s bifurcation points.

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Comparison of numerical models for nonlinear static analysis of planar concrete frames based on 1D and 2D finite elements

Cited by 2 publications

References 14 publications

Anisotropy Effect of Masonry on the Behaviour and Bearing Capacity of Masonry Walls

Anisotropy Effect of Masonry on the Behaviour and Bearing Capacity of Masonry Walls

Investigation of critical load of structures using modified energy method in nonlinear-geometry solid mechanics problems

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