Bug located in accessing Tsai Wu coefficients

[roosre]

🔍 Before submitting the issue

• I have searched among the existing issues
• I am using a Python virtual environment

🐞 Description of the bug

The Tsai-Wu coefficients are defined in the attached XML but the output in PyDPF Composites is 0. The expected value is -1.ply_type.zip

📝 Steps to reproduce

import os

from ansys.dpf.composites.composite_model import CompositeModel
from ansys.dpf.composites.constants import FailureOutput
from ansys.dpf.composites.failure_criteria import CombinedFailureCriterion, MaxStressCriterion, TsaiWuCriterion
from ansys.dpf.composites.server_helpers import connect_to_or_start_server
from ansys.dpf.composites.data_sources import ContinuousFiberCompositesFiles
from ansys.dpf.composites.layup_info.material_properties import MaterialProperty

result_path = r"D:\tmp\PyDPFComp-APDL\ply_type"

composite_files = ContinuousFiberCompositesFiles(
rst = [os.path.join(result_path, "file.rst")],
composite = {},
engineering_data=os.path.join(result_path, "EngineeringData.xml"),
)

server = connect_to_or_start_server()

composite_model = CompositeModel(composite_files, server)

combined_failure_criterion = CombinedFailureCriterion(failure_criteria=[TsaiWuCriterion()])
failure_result = composite_model.evaluate_failure_criteria(combined_failure_criterion)

irf_field = failure_result.get_field({"failure_label": FailureOutput.FAILURE_VALUE})
irf_field.plot()

mp = MaterialProperty.Tsai_Wu_Constant_xy
values = composite_model.get_constant_property_dict([mp])
print(values)

💻 Which operating system are you using?

Windows

📀 Which ANSYS version are you using?

2025 R1

🐍 Which Python version are you using?

3.9

📦 Installed packages

aiohappyeyeballs==2.4.3
aiohttp==3.10.10
aiosignal==1.3.1
ansys-api-dbu==0.3.6
ansys-api-geometry==0.4.11
ansys-api-meshing-prime==0.1.3
ansys-api-tools-filetransfer==0.1.0
-e git+https://tfs.ansys.com:8443/tfs/ANSYS_Development/ANSYS-CH/_git/ansys_devops_tools@10d4c7e3557bcf45b3b8ddf184ecc4c14fbad5d2#egg=ansys_devops_tools
ansys-dpf-composites==0.6.1
ansys-dpf-core==0.13.0
ansys-tools-filetransfer==0.1.0
ansys-tools-local-product-launcher==0.1.0
ansys-tools-path==0.6.0
ansys-tools-visualization-interface==0.4.5
anyio==4.6.2.post1
appdirs==1.4.4
argon2-cffi==23.1.0
argon2-cffi-bindings==21.2.0
arrow==1.3.0
asttokens==2.4.1
async-timeout==4.0.3
attrs==24.2.0
backports.entry-points-selectable==1.3.0
beartype==0.19.0
beautifulsoup4==4.12.3
bleach==6.1.0
bottle==0.12.25
cachetools==5.5.0
certifi==2024.8.30
cffi==1.17.1
charset-normalizer==3.4.0
click==8.1.7
colorama==0.4.6
comm==0.2.2
conan==1.60.2
contourpy==1.3.0
cycler==0.12.1
debugpy==1.8.7
decopatch==1.4.10
decorator==5.1.1
defusedxml==0.7.1
exceptiongroup==1.2.2
executing==2.1.0
fasteners==0.19
fastjsonschema==2.20.0
flexcache==0.3
flexparser==0.3.1
fonttools==4.54.1
fqdn==1.5.1
frozenlist==1.4.1
google-api-core==2.19.2
google-api-python-client==2.143.0
google-auth==2.34.0
google-auth-httplib2==0.2.0
googleapis-common-protos==1.65.0
grpcio==1.67.0
grpcio-health-checking==1.62.3
httplib2==0.22.0
idna==3.10
importlib_metadata==8.4.0
iniconfig==2.0.0
ipython==8.28.0
ipywidgets==8.1.5
isodate==0.6.1
isoduration==20.11.0
jedi==0.19.1
Jinja2==3.1.4
jmespath==1.0.1
jsonpointer==3.0.0
jsonschema==4.23.0
jsonschema-specifications==2024.10.1
jupyter-events==0.10.0
jupyter_client==8.6.3
jupyter_core==5.7.2
jupyter_server==2.14.2
jupyter_server_proxy==4.4.0
jupyter_server_terminals==0.5.3
jupyterlab_pygments==0.3.0
jupyterlab_widgets==3.0.13
kiwisolver==1.4.7
makefun==1.15.6
MarkupSafe==3.0.2
matplotlib==3.9.2
matplotlib-inline==0.1.7
mistune==3.0.2
more-itertools==10.5.0
msgpack==1.1.0
msrest==0.6.21
multidict==6.1.0
nbclient==0.10.0
nbconvert==7.16.4
nbformat==5.10.4
nest-asyncio==1.6.0
networkx==3.4.1
node-semver==0.6.1
numpy==2.1.2
oauthlib==3.2.2
overrides==7.7.0
packaging==24.1
pandocfilters==1.5.1
parso==0.8.4
patch-ng==1.17.4
pillow==11.0.0
Pint==0.24.3
platformdirs==4.3.6
pluggy==1.5.0
pluginbase==1.0.1
pooch==1.8.2
prometheus_client==0.21.0
prompt_toolkit==3.0.48
propcache==0.2.0
proto-plus==1.24.0
protobuf==4.25.5
psutil==6.1.0
pure_eval==0.2.3
pyasn1==0.6.0
pyasn1_modules==0.4.0
pycparser==2.22
Pygments==2.18.0
PyJWT==2.8.0
pyparsing==3.2.0
python-dateutil==2.9.0.post0
python-json-logger==2.0.7
pyvista==0.44.1
pywin32==308
pywinpty==2.0.14
PyYAML==6.0.2
pyzmq==26.2.0
referencing==0.35.1
requests==2.32.3
requests-oauthlib==1.3.1
rfc3339-validator==0.1.4
rfc3986-validator==0.1.1
rpds-py==0.20.0
rsa==4.9
scipy==1.14.1
scooby==0.10.0
semver==3.0.2
Send2Trash==1.8.3
simpervisor==1.0.0
six==1.16.0
sniffio==1.3.1
soupsieve==2.6
stack-data==0.6.3
terminado==0.18.1
tinycss2==1.3.0
tomli==2.0.2
tornado==6.4.1
tqdm==4.66.1
traitlets==5.14.3
trame==3.7.0
trame-client==3.4.0
trame-server==3.2.3
trame-vtk==2.8.11
trame-vuetify==2.7.1
types-python-dateutil==2.9.0.20241003
typing_extensions==4.12.2
uri-template==1.3.0
uritemplate==4.1.1
urllib3==2.2.3
vsts==0.1.25
vtk==9.3.1
wcwidth==0.2.13
webcolors==24.8.0
webencodings==0.5.1
websocket-client==1.8.0
websockets==13.1
widgetsnbextension==4.0.13
wslink==2.2.1
yarl==1.15.5
zipp==3.20.1