VisualFEA (Finite Element Analysis)

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https://hdl.handle.net/1813/43749

VisualFEA is an easy-to-use but powerful finite element analysis program, full-fledged with pre- and post-processing capabilities. The program has a unique feature for computer-aided education of structural mechanics and finite element method. The educational functions cover a number of topics in the subjects. They are devised to enhance understanding of complex concepts and procedures through graphical simulation and visualization. The program is provided here as a teaching aid for instructors and as a practicing tool for students.

Computer-aided Education of Structural Mechanics and Finite Element Method Using VisualFEA

This video series introduces the computer-aided education of structural mechanics and finite element method using VisualFEA. The educational tools have been devised to promote understanding and interest in the subjects by substantiating the conceptual principles and visually exhibiting the complex computational processes with the aid of interactive computer graphics. In lieu of manipulation with pre-supplied conditions or the input of assumed data, the instructional tools are operated using data generated through a real and practical process of analysis. The educational functions can be used not only as teaching aids for instructors, but also as drill and practice tools for students.

Download this VisualFEA Directory to locate and to access the components of this collection: http://hdl.handle.net/1813/43866

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Software and Computer-based Instructional Materials
Lee, Jae Young (2016)
VisualFEA - Computer Program
Lee, Jae Young (2016-03-01)
VisualFEA is an easy-to-use but powerful finite element analysis program, full-fledged with pre- and post-processing capabilities. The program has a unique feature for computer-aided education of structural mechanics and finite element method. The educational functions cover a number of topics in the subjects. They are devised to enhance understanding of complex concepts and procedures through graphical simulation and visualization. The program is provided here as a teaching aid for instructors and as a practicing tool for students.
45 - Interpolation and Shape Function
Lee, Jae Young (2016-03-01)
This screen demo introduces an educational function of VisualFEA, related to intra-element interpolation of nodal values using shape functions. This feature of the program is intended to help understand the nature of the shape functions and computational aspects of interpolation. The characteristics of element modeling can be examined through the graphical representation. They include the inter - element continuity related to compatibility of the shape functions between adjacent elements.
34 - Representation of Elasto-plastic Behavior Using Yield Surface
Lee, Jae Young (2016-03-01)
This screen demo will show how the elasto-plastic behavior can be represented by the yield surface under a given plastic yield criterion. In this demo, a quarter section of a plate with a hole was modeled as a plane strain case with elasto-plastic material behavior. The concepts of yield surface and stress path can be understood through interactive manipulation of graphic images representing the state of stresses.
31 - An example of plane strain case
Lee, Jae Young (2016-03-01)
This screen demo shows the basic procedure of finite element analysis by VisualFEA, using a simple example of plane strain case. The preprocessing, solving and postprocessing stages are explained through the step-by-step progress of defining outlines, generating meshes, assigning attributes, solving and visualizing analysis results. The look and feel of the program as well as its usage can be grasped from this demo.
44 - Processing of Finite Element Stiffness Equation: Plane strain case
Lee, Jae Young (2016-03-01)
The function covers interactive simulation of assembling stiffness matrices and force vectors into the system equations, comparison of different assembly methods, and node and element numbering for the computational efficiency. Drag-and-drop assembly of element stiffness matrix is graphically simulated for intuitive understanding of the process. This demo is a continuation of the demo about element stiffness matrix of plane strain model in the file named PlaneElem.mp4.
43 - Computation of Element Stiffness Matrix: Plane strain case
Lee, Jae Young (2016-03-01)
This screen demo introduces an educational function of VisualFEA for teaching and learning the procedure of computing element stiffness matrices in finite element method. The step by step process of numerical integration is displayed using graphical images and numerical expressions. The purpose of the function is to study the computational details through inspecting the numerical data produced in the integration process.
33 - Representation of Elasto-plastic Behavior Using Mohrs Circle
Lee, Jae Young (2016-03-01)
This screen demo shows how Mohr's circles can be used in representing the elasto-plastic behavior in finite element analysis. The transition of stress state from elastic to plastic is illustrated by the image of incremental Mohr’s circles and envelope curve. The characteristics of plastic yield criteria and their significance can also be observed by comparing the Mohr’s circles for the stresses under different criteria.
32 - Mohrs Circle - Linear
Lee, Jae Young (2016-03-01)
This video shows an educational function for teaching and learning the concept and usage of Mohr's circle in solid mechanics. A Mohr’s circle is drawn using the stresses at a point of a plane or a three dimensional solid model. Various graphic visualization and tooltip information illustrate the representation of stress state by the Mohr’s circle. The coordinate transformation of stresses is also demonstrated.
42 - Processing of Finite Element Stiffness Equation
Lee, Jae Young (2016-03-01)
The video demonstrates interactive simulation of assembling stiffness matrices and force vectors into the system equations, comparison of different assembly methods, and node and element numbering for the computational efficiency. This demo is a continuation of the demo about element stiffness matrix of 2-D frame model in the file named, FrameElem.mp4.

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