instruction smv5213 fe[1]

7/29/2019 Instruction SMV5213 FE[1]

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ABAQUS Instruction

1. To run ABAQUS/CAE, firstly activate ABAQUS server by clicking lmstool. Thengo to start/stop/read menu and click Start Server button. At the bottom of theinterface, it will showStart Server Successful. You can close thelmstool by then.

2. Now, double click on ABAQUS/CAE icon to run the software. Start Session

interface will pop-up straight away and click on Create Model Database. You can seemodule section on left hand side of the interface that consists of several modulesstarting from Part, Property, Assembly, Step, Interaction, Load, Mesh, J ob,Visualisation and Sketch. These are the important parts in ABAQUS.

3. Firstly, start with Part Module. In this section, you can develop your CAD model byclicking Part command and Create. Or you can import your CAD model using Filecommand and go to Import command and select Part. You can import your modelusing provided extension such as *SAT and etc.

4. Now go to the second module namely Property. In it you can see various commands. The

first step is to click Material command and Create. Give any material name that easy toidentify later on. Click on General to define the density and on Mechanical to define theElasticity of the material. Then close the interface by clicking OK.

The second step in Property module is to create Section by choosing Section command andCreate. Give any name for the section that represents your component. Choose Solid and



Homogenous and then click continue. In Edit section pick material name specifiedpreviously and use default value for stress/strain thickness. Then press OK button.

The third step in this module is to assign section that created before for the component. Go toAssign command and select Section command. Then select the component to assign the

material properties and click Done.

4. The next module is Assembly. In this module, users can assemble their parts byclicking Instance command and then go to Create. Select all components in order toassemble them and click OK.



6. Then go to Step module to create a number of step analyses according to the selectedproblem. To create the step, go to Step command and click at Create. Create Step interfacewill pop-up to choose procedure type. In this project you need to create two steps namely a)Applying pressure and b) rotating disc. Use General Static for both steps. Click Continue toedit the step. In it use default value and click OK.

The next step in this module is to choose data that you need for the project. This can be done

by choosing the Output command. Then go to Fields Output Requests and Create. CreateField interface will pop-up and you need to click Continue. Select the data that you require.

7. Interaction command will only be used if contact is required. This is available inInteraction module. In this module you need to specify property of the contact i.e. tangentialand normal interaction (friction force and normal force). To set this, you need to selectproperty in Interaction command and choose Property and Create. In Create IP, give asuitable name for the interaction and then select Contact for type of interaction, then clickcontinue. In Edit Contact Property, choose Mechanical: tangential behaviour (penalty andgive a value of friction coefficient) and Normal behaviour (use default value) and click OK.



Having finished it, you need to specify pad interface by clicking on Tools and Sets. Click onCreate and select the pad interface and click OK. Do this for both pad with different name,i.e. pad1 and pad2. Then go to interaction command and click on Create. Select Surface-to-surface contact and click continue. Then pick your disc surface as the master surface and padsurface and slave surface. You need to specify this for both disc and pad interfaces (inboardand outboard). Use small sliding algorithm and in Slave Node Adjustment you need to pick

“adjust slave nodes in set” and select pad interface that created before according to theinteraction name. This is to make sure that nodes of the pad do not penetrate master surface(disc surface).

The next step is to constraint the disc with a rigid body. This is required due to a solidelement does not have rotational DOFs. In so doing, go to Tools and select Reference Pointand pick any one point that locates at the center of the disc. Then go to Constraint commandand select Create. Choose Rigid Body in Type and click then click on continue. In regiontype pick Tie (nodes) and go to edit (on right hand side), then select inner radius of the disccomponent and click Done. After that go to Reference Point in the Edit Constraint interface.Click on Edit button and pick the reference point (RP) that created before shown in thescreen.

8. Next is the Load module. In this module users can apply load and boundary conditions tothe components. In the project, students have to apply brake-line pressure (load) in the step1. For boundary conditions, fixed displacements (u1,u2,u3) are imposed in Step 1 to thereference point and for backplate only displacements on plane axis are constrained in Step1(not in normal direction to the backplate). The disc is assigned to rotate in Step 2. In sodoing, you need to click on Load command and Create. Choose Pressure in Create Loadinterface and make sure that this is in Step 1. Then select backplate surface for both pads andinsert a pressure value in the magnitude box.



Then go to BC command to impose boundary conditions. Use Displacement/Rotation inorder to prevent any movements of the disc (Reference Point) or the backplate in Step 1 andimpose rotation in Step 2 by choosing Velocity /Angular Velocity. Click on the ReferencePoint to rotate the disc (not the disc itself)

9. The next stage is to create nodes and element of the components. This is done in Meshmodule. The first step is to create Seed (use Instance for automatic seeding) on thecomponents. Numbers of element or node are dependent upon numbers of seed. Havingsatisfied with the number of seeds, go to Mesh command and click on Controls in order tochoose types of element (Hex, Hex-dominated, Tet or Wedge). In this project, Hex or Hex-dominated element type are recommended (but Tet element is fine). After that click onElement Type. Use Standard and Linear 3D Stress with element type of C3D8 (at the bottomof the interface).



Now you can start to mesh using Mesh command and click on Instance.

10. The last step is submitting a job to simulate the analysis. To do this, go to the Job moduleand create a Job name, then click on continue button. First click on datacheck and this is toexamine whether there is an error in the procedure or not. Click on OK and go to Submit toanalyse the job. If the procedure is OK (completed and successful) go to Edit command (in

Job command) and change datacheck to full analysis. Again go to Submit command to runthe full analysis. In order to visualise the results, you can click on Results in the same Jobcommand. If there are errors in the procedure, take a look on command ABAQUS interfacelocated at the bottom side. There will be guidelines where the errors come from or check on*.data files located on the director (outside of ABAQUS/CAE).

instruction smv5213 fe[1]

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