کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1561733 1513945 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mesoscale analysis of deformation and fracture in coated materials
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Mesoscale analysis of deformation and fracture in coated materials
چکیده انگلیسی

The deformation and fracture of a coated material are simulated. A dynamic boundary-value problem in a plane strain formulation is solved numerically by the finite-difference method. To simulate the mechanical response of the steel substrate use was made of the relaxation constitutive equation based on microscopic dislocation mechanisms. A fracture criterion takes into account crack origination and growth in the elastic-brittle coating. Numerical experiments were conducted for varying strain rate of tension and compression. Macroscopic behavior of the coated material is shown to be controlled by interrelated processes of localized plastic flow in the substrate and cracking of the coating that strongly depends on an external strain rate.


► The deformation and fracture of a material with coating are simulated.
► Relaxation constitutive equation is based on microscopic dislocation mechanisms.
► Numerical experiments were conducted for varying strain rate.
► Cracking of the coating strongly depends on an external strain rate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 64, November 2012, Pages 306–311
نویسندگان
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