کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830523 1470356 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sequential coupled process-performance simulation and multi-objective optimization of thin-walled tubes
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Sequential coupled process-performance simulation and multi-objective optimization of thin-walled tubes
چکیده انگلیسی

A sequential coupled nonlinear finite element analysis framework is developed to investigate the effects of sheet-forming process and product design parameters on energy absorption characteristics of thin-walled, multicorner tubes made of a magnesium alloy. Coupling stems from the use of analysis results from one simulation to form the initial state in the subsequent simulation. High fidelity coupled process-performance simulations are used in design of computer experiments for developing analytical surrogate models of process and performance responses as functions of product geometry and process parameters. Rupture, thinning and springback are treated as the manufacturing responses whereas mean crush force, maximum crush force, and mass are used as structural performance measures. An integrated process-performance optimization problem is setup and solved using the multi-objective genetic algorithm approach. The results of coupled simulations show the importance of manufacturing effects on the crush response while the Pareto optimal set highlights the tradeoff among process and performance attributes.


► Investigated sequential coupled process-performance simulation using FEA.
► Examined material processing effects on energy absorption of thin-walled metallic tubes.
► Rupture, thinning, springback, mean and max crush force, and mass treated as design objectives.
► Sensitivity analysis and multi-objective optimization performed.
► Pareto optimal set highlights tradeoff among process and performance attributes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 41, October 2012, Pages 89–98
نویسندگان
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