winLIFE is delivered with examples including all data for calculations so that
the user can become familiar with the program. The data can be found in
sub-directories named accordingly.
By working through these examples, the user becomes familiar with how the program operates in a short amount of time, thus saving time in the future.
In the Help section you can find a summary table of the data which needs to be entered by the user.
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No. |
Aim |
Contents |
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1
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Example 1 introduces you to the basics of the program with the help of examples for nominal stress concept. |
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2
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Summary and use of winLIFE with a simple exercise on nominal stress concept. |
In this example a square notched plate with a thickness of 5mm is calculated according to the nominal stress method. |
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3
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Summary and use of winLIFE with a simple exercise on local strain approach. |
In this example a square notched plate with a thickness of 5mm is calculated according to the local strain approach. |
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4
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Connection between rainflow procedure and stress-strain path. |
In this example, we compare the construction of a stress-strain path using only the material memory with the construction of a stress-strain path based on the rainflow procedure. For this purpose, an example is taken from literature and re-calculated.
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5
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The component S-N curve is to be defined for an offset shaft made of rolled steel which is subject to bending and torsion loadings. This is then compared to the KFM-guidelines.
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6
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The basic procedure of a multiaxial calculation with FEM is shown. |
A time-varying torsion moment and pull-push forces are working on a cylinder. The course hast o be entered manually, the data transfer is explained and the results are analysed. |
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7
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The example could be a realistic use from the engineering or vehicle manufacturing field. A steering system is subject to two individual groups of forces and the measurement values are available. The aim of the exercise of to calculate the fatigue life for the load collective obtained from the measurement.
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8
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Using measured strains (rosette) for a multiaxial calculation |
A commercial vehicle wheel hub has been bound up with strain gauges and tested in the Europe test cycle. The static pre-load from the air pressure and the dynamic strain from the spring deflection are analysed separately and superposed as suitable. Various comparative stress hypotheses or damage parameters are examined and the test results compared.
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9
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Integration in Batch-procedures for automating the processes |
You can start winLIFE with parameters using operating system commands – i.e. without GUI. In this way, running batch procedures can be defined automatically. This makes sense if you often have similar problems where you only have to change a few parameters. In this example we examine the influence of the endurance limit on the fatigue life. Starting with one project file, copies are made whereby only the parameter which varies – i.e the endurance limit – is changed. A batch file is created which runs several winLIFE calculations automatically.
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10 |
Basic functions for calculating the fatigue life of gear wheels |
A simple gear box is shown with a transmission of 1:10. It consists of only two gear wheels made of the same material. The dwelling period collective is made up of only a few steps. A simple fatigue life calculation for it is carried out.
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11 |
In this example we show the interaction between SAMCEF Field Version 7.0 and winLIFE. A robot arm hits against a wall and the loads occurring are used for a fatigue life calculation. This is therefore a fatigue life calculation of a transient procedure.
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12 |
Using FEMAP and winLIFE in an example of a notched shaft / Data transfer between FEMAP and winLIFE |
In this example you can see how FEMAP (Version 9.3) works with winLIFE. A fatigue life calculation is carried out for a notched shaft which is loaded by a bending moment. To do this, unit load cases are defined in FEMAP and transferred to winLIFE. The results of the fatigue life calculation are then transferred back to FEMAP and shown there.
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13 |
Using FEMAP and winLIFE in an example of a complex commercial vehicle rear axle.
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In this example we see how FEMAP (Version 9.3) works with winLIFE. For a complex component, a rear axle, the weld seams are calculated according to the r1-concept. All the modelling and the use of sub-structures are shown here. The loading occurs with three measured load-time-functions. Three unit load cases in the direction of the wheel force are calculated in FEMAP and transferred to winLIFE. The results of the fatigue life calculation are then transferred back to FEMAP and shown there. |
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14 |
Calculating a welded pipe using hot spot concept
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In this example a welded joint is modelled by plate elements using FEMAP. To meet the standards for fatigue calculation of welds according to the hot spot concept the mesh has to be created in a special way. The lines where the nodes are located are parallel and in a definite distance to the weld toe. The stress tensor needed for weld calculation is automatically created by stress tensor extrapolation.
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15 |
Using SAMCEF and winLIFE to calcualte a notched shaft loaded by a measured load(part1). Using SAMCEF and winLIFE to calcualte a notched shaft loaded by a measured load(part2).
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The creation of the SAMCEF model, the datatransfer is shown to introduce into SAMCEF and winLIFE.
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16 |
Using FEMAP and winLIFE calculating a bridge which is crossed by a vehicle.
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A simple model for a bridge where a load (representing a car) moves from one side to the other. This example demontrates the procedure by solving nonlinear problems. All model data are shipped that the user can follow this example hinself.
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17 |
Using ANSYS and winLIFE for the caluclation of a noteched shaft.
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Aim is to demonstrate the collaboration of ANSYS and winLIFE and the use of the ANSYS macros. All data of the model are shipped that the user can follow this example hinself.
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