A nonintrusive distributed reduced‐order modeling framework for nonlinear structural mechanics—Application to elastoviscoplastic computations

Casenave Fabien; Akkari Nissrine; Bordeu Felipe; Rey Christian; Ryckelynck David

摘要

Summary > In this work, we propose a framework that constructs reduced‐order models for nonlinear structural mechanics in a nonintrusive fashion and can handle large‐scale simulations. Three steps are carried out: (i) the production of high‐fidelity solutions by commercial software, (ii) the <fi>offline</fi> stage of the model reduction, and (iii) the <fi>online</fi> stage where the reduced‐order model is exploited. The nonintrusivity assumes that only the displacement field solution is known, and the proposed framework carries out operations on these simulation data during the <fi>offline</fi> phase. The compatibility with a new commercial code only needs the implementation of a routine converting the discretized solution into our in‐house data format. The nonintrusive capabilities of the framework are demonstrated on numerical experiments using commercial versions of Z‐set and Ansys Mechanical. The nonlinear constitutive equations are evaluated by using an external plugin. The large‐scale simulations are handled using domain decomposition and parallel computing with distributed memory. The features and performances of the framework are evaluated on two numerical applications involving elastoviscoplastic materials: the second one involves a model of high‐pressure blade, where the framework is used to extrapolate cyclic loadings in 6.5 hours, whereas the reference high‐fidelity computation would take 9.5 days. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“EN”XML：ID =“NME6187-ABS-ABS-ABS-0001”> <标题类型=“main”>摘要</ title> > 在这项工作中，我们提出了一个框架，该框架以非流体方式构造用于非线性结构力学的下降级模型，可以处理大规模模拟。进行了三个步骤：（i）通过商业软件生产高保真解决方案，（ii） <fi>离线</ fi> 模型减少的阶段，（iii） <fi>在线</ fi> 利用阶段的阶段。非功能性假定只知道位移场解决方案，并且所提出的框架在这些模拟数据中执行操作 <fi>离线</ fi> 阶段。与新商业代码的兼容性只需要实现将离散化解决方案转换为内部数据格式的例程。框架的非流体能力在使用Z型和ANSYS机械的商业版本的数值实验中进行了证明。通过使用外部插件来评估非线性本构方程。使用域分解和具有分布式存储器的并行计算来处理大规模仿真。框架的特征和性能在涉及弹性粒径材料的两种数值应用中评估：第二个涉及高压刀片的模型，其中框架用于推断6.5小时内的循环载荷，而参考高保真计算会拿9.5天。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-20801/'>《International Journal for Numerical Methods in Engineering》</a> <b style="margin: 0 2px;">|</b><span>2020年第1期</span><b style="margin: 0 2px;">|</b><span>共22页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Casenave Fabien&option=202" target="_blank" rel="nofollow">Casenave Fabien;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Akkari Nissrine&option=202" target="_blank" rel="nofollow">Akkari Nissrine;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Bordeu Felipe&option=202" target="_blank" rel="nofollow">Bordeu Felipe;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Rey Christian&option=202" target="_blank" rel="nofollow">Rey Christian;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ryckelynck David&option=202" target="_blank" rel="nofollow">Ryckelynck David;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>SafranTechMagny‐les‐Hameaux France;</p> <p>SafranTechMagny‐les‐Hameaux France;</p> <p>SafranTechMagny‐les‐Hameaux France;</p> <p>SafranTechMagny‐les‐Hameaux France;</p> <p>MINES ParisTech PSL ‐ Research UniversityCentre des matériauxCNRS?UMR?7633 Evry France;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/6940.html" title="工程数学">工程数学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=distributed computing&option=203" rel="nofollow">distributed computing;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=elastoviscoplastic material&option=203" rel="nofollow">elastoviscoplastic material;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=nonintrusivity&option=203" rel="nofollow">nonintrusivity;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=reduced‐order modeling&option=203" rel="nofollow">reduced‐order modeling;</a> </p> <div class="translation"> 机译：分布式计算;弹性粒子塑料材料;非功能性;降低阶型建模; 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