کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
510096 865740 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simulations of gradual domain-switching in polycrystalline ferroelectrics using an optimization-based, multidomain-grain model
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Simulations of gradual domain-switching in polycrystalline ferroelectrics using an optimization-based, multidomain-grain model
چکیده انگلیسی

An optimization-based computational model is proposed to study the constrained domain switching in polycrystalline ferroelectrics composed of numerous grains, each of which consists of multiple domains. Domain switching is realized by an optimization algorithm to minimize the free energy of each grain and is thus a gradual process with applied loading. Similar to phase field modeling, no priori domain-switching criterion is imposed in the proposed model and its computational efficiency is much higher. The domain textures evolution process can also be captured. Simulation results on both tetragonal and rhombohedral PZT ceramics illustrate the efficiency of this model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 89, Issues 11–12, June 2011, Pages 1142–1147
نویسندگان
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