Plates

Axisymmetric Plate With Hole

Tested with CGX 2.19 / CCX 2.19

• Linear static solution
• Axisymmetric model
• Test of expansion sweep in the post-processing for various element types
• Demonstration of polar co-ordinate system for stress components

File	Contents
pre.fbd	Pre-processing script for CGX
post.fbd	Post-processing script for CGX
plates.inp	CCX input
test.py	Python script to run the full simulation

Preprocessing

Parameter	Value	Description
Ri	20	inner radius (hole) in mm
Ra	60	outer radius (rim) in mm
thick	10	thickness of the plates in mm
pressure	1	pressure in MPa

> cgx -b pre.fbd

There are four disks, clamped at the outer perimeter and loaded by a pressure on the top faces. Each disk is meshed with a different element type:

Disk	CGX	CCX
1 (upper)	tr6c	CAX6
2	tr3c	CAX3
3	qu8c	CAX8
4 (lower)	qu4c	CAX4

Solving

> ccx plates

Postprocessing

> cgx -b post.fbd

Transformation to polar co-ordinates has to be applied after model expansion.