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Updates to the Theory Manual between March 16, 2023 and March 26, 2024
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We describe in the following how the DRAFT Theory Manual has changed since the last DRAFT manual. We categorize the changes into New and Error Fixes and Clarifications. We exclude typo fixes and prosaic rearrangements from this document.

New
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26 Time Step Control: Added discussion of the effect of dynamic viscosity to 26.1. Made small updates to the end of 26.5. Added description of time step control for cohesive elements to 26.6.

28.3 Stability of Central Difference Method: Updated discussion starting with Equation 28.24.

29 Rigid Body Dynamics: Added subsection 29.1.5 and updated subsection 29.1.6.

Error Fixes and Clarifications
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23.9 Material Model 9: Null Material: Fixed error in equation. 

23.127 Material Model 127: Arruda-Boyce Hyperviscoelastic Rubber: Added clarification to Equation 23.127.1.

28.3 Stability of Central Difference Method: Fixed errors in Equations 28.17 and 28.19. 

30 Contact-Impact Algorithm: Completely reorganized. Replaced master and slave.