Coupled sequential process-performance simulation and multi-attribute optimization of structural components considering manufacturing effects
| العنوان: | Coupled sequential process-performance simulation and multi-attribute optimization of structural components considering manufacturing effects |
|---|---|
| المؤلفون: | Najafi, Ali |
| Call Numbers: | TL507 .N3534 2011Dis |
| وصف مادي: | 1 online resource Electronic book in PDF. |
| Supplemental Data: | Mode of access: Internet via the World Wide Web. System requirements: Internet connectivity; World Wide Web browser software; Adobe Acrobat Reader. |
| مستخلص: | Coupling of material, process, and performance models is an important step towards a fully integrated material-process-performance design of structural components. In this research, alternative approaches for introducing the effects of manufacturing and material microstructure in plasticity constitutive models are studied, and a cyberinfrastructure framework is developed for coupled process-performance simulation and optimization of energy absorbing components made of magnesium alloys. The resulting mixed boundary/initial value problem is solved using nonlinear finite element analysis whereas the optimization problem is decomposed into a hierarchical multilevel system and solved using the analytical target cascading methodology. The developed framework is demonstrated on process-performance optimization of a sheet-formed, energy-absorbing component using both classical and microstructure-based plasticity models. Sheet-forming responses such as springback, thinning, and rupture are modeled and used as manufacturing process attributes whereas weight, mean crush force, and maximum crush force are used as performance attributes. The simulation and optimization results show that the manufacturing effects can have a considerable impact on design of energy absorbing components as well as the optimum values of process and product design variables. |
| الموضوعات: | Production engineering., Multidisciplinary design optimization., Engineering design., Plasticity Simulation methods., Technique de la production., Optimisation multidisciplinaire (Conception technique), Conception technique., Plasticité Méthodes de simulation., Engineering design., Multidisciplinary design optimization., Production engineering. |
| مصطلحات الفهرس: | BCJ plasticity, Internal state variable model, Crush simulation, Process-performance design optimization, Manufacturing effects, Sheet metal forming simulation, Electronic resources, Electronic theses/dissertations, Dissertations, Academic theses., Academic theses., Thèses et écrits académiques. |
| URL: | |
| ملاحظة: | Title from title screen. Includes bibliographical references. |
| أرقام أخرى: | MFM oai:library.msstate.edu:etd-07082011-104631 824178945 |
| المصدر المساهم: | From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.ocn824178945 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |