ANSYS CivilFEM 14.5 5
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How to Use ANSYS CivilFEM 14.5 5 for Advanced Civil Engineering Projects
ANSYS CivilFEM 14.5 5 is a powerful software that combines the general purpose structural analysis features of ANSYS with the high-end civil engineering-specific capabilities of CivilFEM. It is a unique and comprehensive tool for a wide range of civil engineering projects, such as power plants, bridges, tunnels, buildings, offshore structures, and more.
In this article, we will show you how to use ANSYS CivilFEM 14.5 5 for some of the most common and advanced civil engineering tasks, such as:
Non-linear construction sequence analysis
Real non-linear buckling analysis
Prestressed and damped modal analysis
Non-linear time history analysis
Optimization and parametrization analysis
Code checking and design according to international standards
We will also provide you with some examples and resources to help you get started with ANSYS CivilFEM 14.5 5.
Non-linear construction sequence analysis
One of the most important features of ANSYS CivilFEM 14.5 5 is the ability to perform non-linear construction sequence analysis. This allows you to simulate the actual construction process of a structure, taking into account the birth and death of elements, the update of time-dependent material properties, and the effects of load application and removal.
This type of analysis is essential for complex structures that undergo large deformations or stress redistributions during construction, such as bridges, dams, tunnels, or buildings. It can help you to optimize the construction schedule, reduce costs and risks, and ensure the safety and serviceability of the structure.
To perform a non-linear construction sequence analysis with ANSYS CivilFEM 14.5 5, you need to define the following steps:
Create a geometric model of the structure using solid or shell elements.
Assign material properties and element types to the model.
Define the construction stages using the Birth & Death option in CivilFEM.
Specify the load cases and load combinations for each stage.
Solve the non-linear analysis using ANSYS solver.
Review and post-process the results using CivilFEM tools.
You can find a detailed example of this procedure in the Workbook V14.5[^2^], Example 10: Push-over analysis.
Real non-linear buckling analysis
Another advanced feature of ANSYS CivilFEM 14.5 5 is the ability to perform real non-linear buckling analysis. This allows you to capture the true behavior of a structure under compressive loads, taking into account geometric and material nonlinearities, imperfections, boundary conditions, and load eccentricities.
This type of analysis is crucial for slender structures that are prone to instability phenomena, such as columns, arches, shells, or frames. It can help you to evaluate the critical load factor, the buckling mode shape, and the post-buckling response of the structure.
To perform a real non-linear buckling analysis with ANSYS CivilFEM 14.5 5, you need to define the following steps:
Create a geometric model of the structure using solid or shell elements.
Assign material properties and element types to the model.
Define an initial linear buckling analysis using ANSYS solver.
Extract the buckling mode shape and apply it as an imperfection to the model using CivilFEM tools.
Define a non-linear static analysis using ANSYS solver with large deflection option activated.
Review and post-process the results using CivilFEM tools.
You can find a detailed example of this procedure in the Workbook V14.5[^2^], Example 8: Compression Buckling.
Prestressed and damped modal analysis
A third advanced feature of ANSYS CivilFEM 14.5 5 is the ability to perform prestressed and aa16f39245