Release 2025 R2 includes the following enhancements for analyses involving multiphysics environments:
The following enhancement for acoustic analysis is available:
The following enhancements are available for analyses involving coupled-field elements:
Nonlocal damage formulation is now supported for SOLID226 and SOLID227 for stuctural-thermal, structural-diffusion and structural-thermal-diffusion-analyses. SOLID226 and SOLID227 are now enabled to activate nonlocal damage models such as generalized damage (implicit gradient regularization). Nonlocal damage formulation capabilities can better capture the distributed nature of damage in real materials by averaging variables over a finite neighborhood and introducing a characteristic length scale. This leads to more objective and reliable results, improved convergence stability and mesh insensitivity in the presence of strain localization or softening.
User-programmable features (UPFs) available for coupled-field elements PLANE222, PLANE223, SOLID225, SOLID226, and SOLID227 now enable you to customize element matrices and load vectors, thus providing complete control over element behavior. Newly added procedures simplify the access, calculation, and modification of these matrices and vectors. With this enhancement, you can now improve the existing element formulation or completely overwrite it. For nonlinear loads or material models, you can calculate the respective tangent matrices and add them to the element stiffness matrix to improve the convergence of a nonlinear analysis. You can also create custom stiffness, mass, and damping matrices and load vectors to replace the default ones. New examples have been added to the documentation to demonstrate the use of Coupled-field UPFs. For more information, see Customizing a Coupled-Field Element in the Programmer's Reference