Problem 2: 3D analysis of a plate with hole in center

A square plate with a hole at the center is under a tension load p in x direction as shown in the figure below. the dimension of the plate is 10in X 10in, thickness is 0.1in, and radius of hole is 1 in. Assume material structural Steel and p = 100 psi. FInd the maxium stress in plate.

Result:- 

1. Deflection(total )

2. Deflection( x- direction)

3. Deflection( y- direction)

4. Stress(von-Mises)

5. Strain(von-Mises )

6. Stress concentration factor

justify your answer with correct explanation, applying your subject knowledge.

Analysis using workbench

Result

Problem 1: Analysis using ANSYS APDL Script : 3D Analysis of beam with Concentrated Load on Corner

Below there is script of Ansys APDL of 3D analysis of Beam with Concentrated Load on Corner

Firstly copy this script to "Notepad". Go to File Menu, Select "Read Input From". Select file from list.  

/PREP7
ET,1,SOLID186
MP,EX,1,200000000000
MP,PRXY,1,0.3
BLOCK,0,2,0,0.25,0,0.08
ESIZE,0.1
VMESH,1,1
DA,5,UX,0
DA,5,UY,0
DA,5,UZ,0
FK,7,FZ,-1000
/SOLU
SOLVE
/POST1
PLNSOL,U,SUM,1

Frictionless Support

An object have six degree of freedom in space. There are three translational and three rotational Degree of Freedom.

1.       Translation in X (Ux)

2.       Translation in Y (Uy)

3.       Translation in Z (Uz)

4.       Rotation about X (RotX)

5.       Rotation about Y (RotY)

6.       Rotation about Z (RotZ)

We apply support to restrict these DOF. In ANSYS, Frictionless Support provide Support in normal direction to the selected face or edge. The body can not move or rotate or deform in normal direction. But free to move or rotate or rotate in tangential direction.

Analysis Type – This boundary condition are available in only following ANSYS Analysis type

• Static Structural
• Transient Structural
• Harmonic Response
• Modal

Properties of Boundary Condition

Dimensional Analysis

• 3D Simulation: Supported
• 2D Simulation: Supported

Geometry Type

• Solid: Supported
• Surface/Shell: Supported
• Wire body/ line body / Beam: Supported

Topology

• Body: Not Supported
• Face: Supported- 3D only
• Edge: Supported – 2D only
• Vertex: Not Supported
• Node: Not Supported

Displacement

An object have six degree of freedom in space. There are three translational and three rotational Degree of Freedom.

1.       Translation in X (Ux)

2.       Translation in Y (Uy)

3.       Translation in Z (Uz)

4.       Rotation about X (RotX)

5.       Rotation about Y (RotY)

6.       Rotation about Z (RotZ)

We apply support to restrict these DOF. In ANSYS, for Displacement support, we have to select the translational direction to restrict that direction’s movement at a point, edge or face.

Analysis Type – This boundary condition are available in only following ANSYS Analysis type

• Static Structural
• Transient Structural
• Harmonic Response
• Explicit Dynamics
• Modal

Properties of Boundary Condition

Dimensional Analysis

• 3D Simulation: Supported
• 2D Simulation: Supported

Geometry Type

• Solid: Supported
• Surface/Shell: Supported
• Wire body/ line body / Beam: Supported

Topology

• Body: Supported, in Explicit Analysis
• Face: Supported
• Edge: Supported
• Vertex: Supported
• Node: Not Supported