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Fatigue Analysis with MBD recovery

Beta

hi,

I am trying to recover MBD result for Fatigue analysis.

For now, I could recover MBD result for Transient Analysis but still unable to use these result for Fatigue Analysis.

I used EL2PROP to assign the property to the set elements in flexible body h3d file.

Besides the assigned data from .h3d file and .mrf file, the model only contains load collectors, materials, properties and loadsteps enough for the analysis.

However, the file still could not be run and returned the error as in the picture below.

No elements and nodes should not be included in the recovery run so I could not create element sets.

Attached is the FEM file. Appreciate your help

image.png.e09b54bcd98129a33298ede6b2e92079.png

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Rahul Rajan_21763

Please make sure to use OptiStruct solver version 2017.2.2 or above version for this analysis.

<?xml version="1.0" encoding="UTF-8"?>

Beta

Hi Rahul,

My OptiStruct solver version is 2017.2.5

I don' really understand about the continuation line. below is how I define properties for elements with EL2PROP. Still got the error

image.png.4e5c8ba77c5e60192838b22beef4e764.png

image.png.0d2d87e62871f8150407ac7b868426a6.png

Attached file is the new FEM file.

If possible, could you please provide me a correct example of using MBD result for Fatigue analysis?/

Unable to find an attachment - read this blog

Rahul Rajan_21763

Could you please share the fem file which helped you to generate the h3d file mentioned in the Assign card?

<?xml version="1.0" encoding="UTF-8"?>

Beta

Hi Rahul,

I figure out by myself.

An element set should be defined with directinputmatrix method and all DIMG checked box

image.png.f4c5f737309ad089c2f6c6a920c38f5e.png

Rahul Rajan_21763

Thanks for the update.