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<a name = "hj-top"> </a><table class = "table1" id = "table11"><tr><td><table class = "DocHeader"><tr><td class = "DocHeader1" colspan = "2"><h1>Overview</h1></td></tr><tr><td class = "DocHeader4" colspan = "2"/></tr><tr><td class = "DocHeader3" colspan = "2"><table class = "DocThemeIntro" id = "table12"><tr><td class = "Intro1Only"><p class = "header"><p class = "abstract">
<span class = "shortdesc">Some file name conventions are explained within this section.</span>

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<div class = "body conbody">

<table class = "table" id = "tso-c-usr-solver-abaqus-ov__ab1445962"><caption/><colgroup><col/><col/><col/></colgroup><thead class = "thead">
<tr class = "row">
<th class = "entry" id = "tso-c-usr-solver-abaqus-ov__ab1445962__entry__1"><p>Solver type</p></th>
<th class = "entry" id = "tso-c-usr-solver-abaqus-ov__ab1445962__entry__2"><p><span class = "ph">Tosca Structure</span> supported input</p></th>
<th class = "entry" id = "tso-c-usr-solver-abaqus-ov__ab1445962__entry__3"><p><span class = "ph">Tosca Structure</span> supported output</p></th>
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</thead><tbody class = "tbody">
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<td class = "entry" headers = "tso-c-usr-solver-abaqus-ov__ab1445962__entry__1"><p><span class = "ph">Abaqus</span></p></td>
<td class = "entry" headers = "tso-c-usr-solver-abaqus-ov__ab1445962__entry__2"><p>.inp</p></td>
<td class = "entry" headers = "tso-c-usr-solver-abaqus-ov__ab1445962__entry__3"><p>.fil or .sim (see below)</p></td>
</tr>
<tr class = "row">
<td class = "entry" headers = "tso-c-usr-solver-abaqus-ov__ab1445962__entry__1"/>
<td class = "entry" headers = "tso-c-usr-solver-abaqus-ov__ab1445962__entry__2"/>
<td class = "entry" headers = "tso-c-usr-solver-abaqus-ov__ab1445962__entry__3"><p>.odb</p></td>
</tr>
</tbody></table>
<p>
<span class = "ph">Tosca Structure</span> supported file
formats for <span class = "ph">Abaqus</span>. See also
the flow diagram in <a class = "xref" href = "tso-c-usr-solver-ov.htm#tso-c-usr-solver-ov" title = "The FE input file (finite element input file) is processed in two ways during the optimization procedure. Initially, the optimization preprocessing step reads the FE input file and all necessary information is written into the optimization database. Afterwards, in each optimization iteration only the properties changing during the optimization will be modified in the FE input file.">Overview</a>.
</p>
<p>
All FE input models (<code class = "ph codeph">.inp</code>) and FE results (<code class = "ph codeph">.odb,
.fil or .sim</code>) are moved into their corresponding <code class = "ph codeph">SAVE</code>
directory.
</p>
<p>
<span class = "ph">Abaqus</span> must always be called in
interactive mode within <span class = "ph">Tosca Structure</span>.
Thus, using <span class = "ph">Abaqus</span> in background mode
is not allowed.
</p>
<p>
It is highly recommended that you use the same main versions of <span class = "ph">Tosca</span>
and <span class = "ph">Abaqus</span>.
Versions of <span class = "ph">Abaqus</span> later than
<span class = "ph">2023</span> are not supported by this release
of <span class = "ph">Tosca</span>. Earlier releases of
<span class = "ph">Abaqus</span> can be used with
<span class = "ph">Tosca</span> with the following restrictions:
</p>
<p>
<ul class = "ul">
<li class = "li">
SENS_CALC_MODE=SOLVER is supported only if the main releases of
<span class = "ph">Abaqus</span> and
<span class = "ph">Tosca</span> match. It  is highly recommended
that you  also use the same Hot Fix version.
</li>
<li class = "li">
Using MatrixFormats.SIM in sensitivity-based calculations with SENS_CALC_MODE=TOSCA is supported only if the main releases of
<span class = "ph">Abaqus</span> and
<span class = "ph">Tosca</span> match. It is highly recommended
that you  also use the same Hot Fix version. If the versions do not match, MatrixFormats.FIL might work as a workaround but full functionality cannot be guaranteed.
</li>
</ul>
</p>
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