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ExplicitBathe -> Like ExplicitDifference but with improved numerical damping that can be controlled with parameter p. ExplicitDifferenceStatic -> Meant for (pseudo) static analysis with explicit dynamics. A controllable local non-viscous damping force is added to remove dynamics. This is better than viscous damping because it converges faster and does not bias the static solution in the presence of plasticity. This is inspired in the methodolocy used by FLAC for static analysis based on explicit integration methods.
New Explicit Integrators
LagrangeMP_FE - remove wrong check
ASDPlasticMaterial3D: robust backward-Euler integration, expanded yield/flow options, internal-variable I/O + fix ElementStateParameter leak
Derive theAccelSeries from theDispSeries in GroundMotion
minor, very minor, let's say irrelevant, edits to HystereticSM
… stiffness. 3. fixed minor bugs.
…n the computations of: 1. ductility, a. the damage parameter b. the unloading-stiffness parameter c. recorder output. and 2. the computation of the initial energy to include the elastic energy. THIS NEW PARAMETER SHOULD BE USED WHEN eps2 REPRESENTS PLASTIC ROTATIONS. I also fixed a lot of other inconsistencies that chatGPT didn't like. no real bugs, but issues nonetheless. I have tested this, it works well. you now have significantly less damage effects since we are now dividing by a real number, while before you were dividing by a tiny numer for the case of plastic rotations. the default is set to zero. I have also updated the code so now the second slope CAN be negative.
significant update to hystereticSM material
Add PythonSparse interface for Python-based linear and eigen solvers
Update Makefiles for SparsePython
Update UniformDamping Initialization
… strict compiler, int should be fine for debugging purposes, really a long long
put back ancLratio into BarSlip Material to be consistent with docume…
Adding error message when Invert() fails on section stiffness
Adding G and Av as optional inputs for elastic beam (2d and 3d)
Umfpack reuse numeric
Enhance VTKHDF recorder with eleTags, nodeTags, and force recording and add the loadconst support for h5drm
Fix null deref in TwoNodeLink
Newton solvers: add -factorOnce and consolidate Tcl/OPS parsers
Two independent bugs in the original material: 1. revertToLastCommit produces wrong stress when creep is active. Root cause: after a rejected step the integrator calls revertToLastStep, which re-evaluates the material at the previous committed time. The unconditional iterationInStep++ at the end of setTrialStrain consumed the first-iteration slot during that re-evaluation, so the subsequent redo saw iterationInStep >= 1 and skipped recomputing creep, committing a stale (zero) creep strain instead of the correct value. Fix: reset iterationInStep = 0 in the same-time branch (committed-time re-evaluations are not part of a new step) and move the increment inside the new-time branch so it counts only genuine new-step iterations. The iterationInStep < 1 gate and the optimization it provides are preserved: creep is constant across Newton iterations because it depends only on committed history and elapsed time, not on the current trial strain, so computing it once per step is correct. 2. sendSelf/recvSelf crashes for any creep setting. Root cause: FEM_ObjectBrokerAllClasses::getNewUniaxialMaterial has no case for MAT_TAG_CreepShrinkageACI209 (tag 236), so object reconstruction from a saved stream returns null and segfaults. Fix: add the missing include and switch case. Also corrects the data Vector size from 27 to the actual 22 scalar fields serialized. Changed files: SRC/material/uniaxial/CreepShrinkageACI209.cpp SRC/actor/objectBroker/FEM_ObjectBrokerAllClasses.cpp
Fix CreepShrinkageACI209 revertToLastCommit and serialization
Remove creep material
Remove CreepMaterial; add CreepShrinkageACI209 to runtime/Win64 and CI tests
Removing debug output statements
…13) and updating python to latest pulled (python3.12)
…for arm and x86 builds, updating .gitignore for mac build dir options, updasting hdf5 version in conanfile
Adding changes to J2CyclicBoundingSurface constitutive model
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