The image above was taken from Stuart Nixon's post : An Implementation for a more Payne-ful Rubber Response!!You probably want to browse that post first. Congrats to Stuart ! He was reading through a 2008 Abaqus Users' Conference paper (attached below) by Jorgen Bergstrom. Jorgen proposed something he called the "Dynamic Bergstrom-Boyce" model (DBB) in order to capture the Payne effect. Stuar
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