Large deflection is one of the most important in analysis settings in ANSYS® Mechanical static structural and transient structural analyses. If you expecting large deflections from your analyses, you need to turn on this option in ANSYS® Mechanical.
By default, large deflection is ‘Off’ mode in ANSYS® Structural analyses. If you turn the large deflection option ‘On’, you will face more solution time and more requirements of the computational source. So, a good estimation and evaluation of the structural system before building the ANSYS® analyses is very important.
You need to assess the situation that if you are expecting any large deflections from your models.
To turn on or off the large deflections in ANSYS® Mechanical, just click on ‘Analysis Settings’ just below the analysis, as shown by the red arrow.
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Beneath the ‘Solver Controls’, you can find out the ‘Large Deflections’ option. You can turn on or off the large deflections by using the drop-down menu as shown in the red box above.
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NOTE: All the screenshots and images are used for educational and informative purposes. Images used courtesy of ANSYS, Inc.
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