Update limitations due to the support of LS Dyna (#561)

* Update the documentation of the limitations

Author: roosre

doc/source/index.rst

@@ -73,8 +73,13 @@ Here are some key features of PyDPF - Composites:
 
 Limitations
 '''''''''''
-- Only the Mechanical APDL solver is supported.
-- The post-processing of expanded cyclic symmetry models is not implemented.
+- Only the Mechanical APDL solver is fully supported. LSDYNA is partially supported
+  as shown in :ref:`LSDYNA post-processing <sphx_glr_examples_gallery_examples_016_lsdyna_bird_strike.py>`.
+  The combined failure criterion (:meth:`.CompositeModel.evaluate_failure_criteria`), 
+  sampling point (:meth:`.CompositeModel.get_sampling_point`) and 
+  computation of interlaminar normal stresses (:meth:`.CompositeModel.add_interlaminar_normal_stresses`)
+  features are not supported for LSDYNA.
+- The post-processing of expanded cyclic symmetry models is not implemented. Only the first sector is considered.
 - The following operators and features are only supported if the model was
   preprocessed with ACP and if the corresponding lay-up definition file is passed to the :class:`.CompositeModel` class.
 

src/ansys/dpf/composites/_composite_model_impl.py

@@ -303,6 +303,9 @@ def evaluate_failure_criteria(
                 ``write_data_for_full_element_scope=True`` is not supported.
 
         """
+        if self.solver_type != SolverType.MAPDL:
+            raise RuntimeError("evaluate_failure_criteria is implemented for MAPDL results only.")
+
         if composite_scope is None:
             composite_scope = CompositeScope()
 
@@ -514,6 +517,9 @@ def get_sampling_point(
             attribute. This parameter is only required for assemblies.
             See the note about assemblies in the description for the :class:`CompositeModel` class.
         """
+        if self.solver_type != SolverType.MAPDL:
+            raise RuntimeError("get_sampling_point is implemented for MAPDL results only.")
+
         element_info = self.get_element_info(element_id)
         if element_info.is_shell:
             return SamplingPointNew(
@@ -707,6 +713,11 @@ def add_interlaminar_normal_stresses(
             Interlaminar normal stresses are only added to the layered elements defined
             in the specified composite definition.
         """
+        if self.solver_type != SolverType.MAPDL:
+            raise RuntimeError(
+                "add_interlaminar_normal_stresses is implemented for MAPDL results only."
+            )
+
         ins_operator = dpf.Operator("composite::interlaminar_normal_stress_operator")
         ins_operator.inputs.materials_container(self._material_operators.material_provider)
         ins_operator.inputs.mesh(self.get_mesh())

src/ansys/dpf/composites/_composite_model_impl_2023r2.py

@@ -32,7 +32,7 @@
 from numpy.typing import NDArray
 
 from .composite_scope import CompositeScope
-from .constants import SolverType
+from .constants import D3PLOT_KEY_AND_FILENAME, SolverType
 from .data_sources import (
     CompositeDataSources,
     ContinuousFiberCompositesFiles,
@@ -268,11 +268,10 @@ def layup_model_type(self) -> LayupModelContextType:
     @property
     def solver_type(self) -> SolverType:
         """Get the type of solver used to generate the result file."""
-        raise NotImplementedError(
-            "solver_type is not implemented"
-            " for this version of DPF. DPF server 10.0 (2025 R2)"
-            " or later should be used instead."
-        )
+        if self._core_model.metadata.data_sources.result_key == D3PLOT_KEY_AND_FILENAME:
+            return SolverType.LSDYNA
+
+        return SolverType.MAPDL
 
     def evaluate_failure_criteria(
         self,
@@ -314,6 +313,9 @@ def evaluate_failure_criteria(
                 ``write_data_for_full_element_scope=True`` is not supported.
 
         """
+        if self.solver_type != SolverType.MAPDL:
+            raise RuntimeError("evaluate_failure_criteria is implemented for MAPDL results only.")
+
         if composite_scope is None:
             composite_scope = CompositeScope()
 
@@ -385,6 +387,9 @@ def get_sampling_point(
             attribute. This parameter is only required for assemblies.
             See the note about assemblies in the description for the :class:`CompositeModel` class.
         """
+        if self.solver_type != SolverType.MAPDL:
+            raise RuntimeError("get_sampling_point is implemented for MAPDL results only.")
+
         time_in = time
 
         if composite_definition_label is None:
@@ -594,6 +599,11 @@ def add_interlaminar_normal_stresses(
             Interlaminar normal stresses are only added to the layered elements defined
             in the specified composite definition.
         """
+        if self.solver_type != SolverType.MAPDL:
+            raise RuntimeError(
+                "add_interlaminar_normal_stresses is implemented for MAPDL results only."
+            )
+
         if composite_definition_label is None:
             composite_definition_label = self._first_composite_definition_label_if_only_one()