Bonded Always Contact, Key Option 12 = 5

Bonded always contact first brings the target and contact surfaces together to eliminate the gap, and then permanently holds the surfaces together. Sliding is not permitted. Note that this is essentially linear contact.

The magnitude of friction stress is large since bonded contact prevents sliding. The greatest value of friction stress is -.203e7 as compared to only -101,353 for standard contact.

In this model the gap between the two beams was included by setting key option 9 = 1. This caused the contact elements to bring the contact and surfaces together such the the gap is closed. The more useful way to use the bonded always contact option is usually to set key option 9 = 1 so that the gap is ignored and the contact and target surfaces are held together in their ‘as assembled’ position.

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