How can we set the contact type through scripting?

Pernelle Marone-Hitz
Pernelle Marone-Hitz Member, Moderator, Employee Posts: 871
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edited June 2023 in Structures

How can we set the contact type through scripting in Mechanical?

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  • Pernelle Marone-Hitz
    Pernelle Marone-Hitz Member, Moderator, Employee Posts: 871
    100 Answers 500 Comments 250 Likes First Anniversary
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    Answer ✓

    The following function can be used:

    def SetContactRegion(contactRegion,contactType,nu):
    '''
    set the contact region 
    :param contactType: string of type of contact
    :param nu: friction coefficient    
    ''' 
    try:
        if contactType=="BONDED":
            if contactRegion.ContactType != ContactType.Bonded:
                contactRegion.ContactType = ContactType.Bonded
                ExtAPI.Log.WriteMessage((str(contactRegion.Name) + " was set bonded.")
                
        elif contactType=="FRICTIONAL":
            if contactRegion.ContactType != ContactType.Frictional:
                contactRegion.ContactType = ContactType.Frictional
            contactRegion.FrictionCoefficient = float(nu)
            # adjust to touch by default for better convergence
            contactRegion.InterfaceTreatment= ContactInitialEffect.AdjustToTouch
            # adding Fkn = 0.1 to ease solving
            contactRegion.AutomaticNormalStiffness= False
            contactRegion.NormalStiffnessFactor = 0.1            
            ExtAPI.Log.WriteMessage((str(contactRegion.Name) + " was set frictional.")            
        
        elif contactType=="SUPPRESSED":
            if contactRegion.Suppressed != True:
                contactRegion.Suppressed = True                
                ExtAPI.Log.WriteMessage((str(contactRegion.Name) + " was set suppressed.")
                
    except:
        ExtAPI.Log.WriteMessage(("Error : Exception in SetContactRegion()")

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