Post on 22-Dec-2015
description
Modelling Step 1: Sketch the beam
UB-‐460 Steel-‐Beam
Step 2: Create a part representing the model
Select parts – Name it Part 1 – Type: Extrusion -‐ Confirm
Step 3: Define the material properties -‐ Steel
Select materials – Elatic – Young’s Modulus: 200000 – Poisson’s Ratio: 0.2 -‐ Confirm
Mohamad� 26/3/2015 11:49 PMComment [1]:
Select materials – Plastic – Yield stress 1 = 400N/mm2, Yield Stress 2 = 400/mm2, Yield Stress 3 = 512/mm2 – Plastic strain 1 = 0, Platic strain 2 = 0.03, Plastic strain 3 = 0.58 -‐ Confirm
Step 4: Define the section properties -‐ SteelSection
Select sections – Solid – Homogeneous -‐ Confirm
Edit section – Select material: Steel – Confirm
Step 5: Assign section
Figure 3
Figure 4
Figure 5
Assign section -‐ Material: SteelSection – Confirm
Step 6: Assemble the model
Instances
Select instance part – part 1 – Instance type: Independent – Confirm
Partition
Cut the model in peaces in order to comply with the mesh & to select the center point.
Sets
Select set part – Name it Load – Select the center point – Confirm
Step 7: Creating Mesh
Seed
Select seed part instance – Global seeds – Approximate global size: 50 – Confirm
Mesh controls
Select mesh controls – Technique: structured – Confirm
Mesh element type
Select assign element type – Defaults – Confirm
Verify Mesh
Select verify mesh – Highlight for errors check – Confirm
Step 8: Step Module
Create step
Select Steps – Create step – Name it load – Initial – Static/General – Confirm
Edit step
Edit Step – Name it Loading – Basic tab – Time period: 1000 – Instrumentation tab – Type automatic – Max. number of increments: 5000 – Increment size: Initial = 0.001, Minimum = 1E-‐015, Maximum = 1000 – Confirm
Step 9: Field output request
Create field – Name it Whole – Step: Load – Edit field output request – Domain: Whole model -‐ Output variables – Stresses & Strains – Confirm
Step 10: History output request
Create history – Name it Monitor – Step: Load – Edit History output request – Domain: Set (Load) -‐ Output variables – Displacement & Forces: CF1 & U2 – Confirm
Step 10: Apply loads
Select loads – Create laod – Name it load – Step: Load – Types of step: Concentrated Force – Edit load – CF2: -‐5000000N – Confirm
Step 11: Boundary Conditions Fixed
Select BCs – Create boundary condition – Name it fixed -‐ Type: Symmetry – Edit boundary condition -‐ Enacstre
Roller
Select BCs – Create boundary condition – Name it rolller -‐ Type: Displacement – Edit boundary condition – Tick: U1 = 0, U2 = 0
Step 12: Defining job Create a job
Figure 21
Create a job – Name it JobAnalysis – Full analysis -‐ Defaults – Confirm
Run the job.
Results
After running the job, check the results
Contour Deformed Shape
Figure 22
Figure 23
The left-‐hand side is fixed, therefore there is no displacement.
The right-‐hand side is roller, therefore there is displacement.
The displacement is shown by the deformation colours.
TIme – Force Scatter
The force is decreasing over 1000 time period from 0 KN to -‐5000 KN.
Time Displacement Scatter
The displacement is decreasing over the time period of 1000 from 0 to -‐2.29647E+006 mm
Figure 24
Displacement – Force Scatter
The force is decreasing over the displacement from 0 mm, 0 KN to -‐2.29647E+006 mm, 5000 KN