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problem with advanced fasteners

stefabry

New member
Recently i have found out that the bolt preload can be modeled using advanced fasteners in ProMechanica.


Unfortunately when i set the fastener to include this modeling capability, i receivethe followingwarning in the report of the analysis:


"The local point measure fastener*_separation_stress has no elements associated with it. A zero value will be assigned"


It happens for each fastener (number *) i include in the analysis. I tried tofix the problem varying the separation test diameter but it doesn't work. I also checkedthe effects ofchanging all of the other bolt parameters without success
smiley19.gif
.


This problem leads to compute a 0 separation stress. May thismistake affect the contact analysis, when contact regions are included?


May someone help me to fix the problem? Thank u very much in advance


Fabrizio Stefani


Dept. of Mechanics and Machine Design,


University of Genoa, Italy
 
What version are you running?


I had a similar problem last week and resolved it by changing to WF2 M220.


PTC has issued an SPR about fasteners on versions before M220
 
I am running WF2 M050. Ihad suspicion that it was a bug...OK I'm going toupdate the version...


thank you very much for your help...
 

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