Complex nonlinear time-dependent analyses require special features not often found in commercial codes. The constitutive model developed in Chapter 2 at the very least requires an evaluation of the AAR-induced strain at each Gauss point (Eq. 2.1). From a practical point of view however and as shown in the referenced analyses, the following features must also be incorporated:
1. Transient (linear) thermal analysis 2. Transfer of nodal temperature from the thermal analysis to the stress anal-
ysis (different meshes are typically used due to the presence of interface elements)
3. Nonlinear joint elements for dam analysis and/or nonlinear continuum elements for reinforced concrete structures
4. Ability to reset displacements to zero while maintaining the stress-strain state (to separate deformations due to dead load from other loads)
5. Generation of a fairly complex input data file that specifies for each time increment: pool elevation, and nodal temperatures.