کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9711677 | 1467574 | 2005 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effective elasto-plastic properties of inclusion-reinforced composites. Study of shape, orientation and cyclic response
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
A Hill-type incremental formulation for two-phase composites was recently proposed by Doghri and Ouaar [Int. J. Solids Struct. 40(7) (2003) 1681]. We present a slightly improved version of the formulation and test it for non-spherical inclusions. The formulation enables the simulation of unloading and cyclic loadings. Two homogenization schemes are implemented: Mori-Tanaka (M-T) and an interpolative double-inclusion model (D-I). Two plasticity models which can be used for any phase are implemented: classical J2 elasto-plasticity and Chaboche's model with non-linear kinematic and isotropic hardenings. All rate equations are discretized in time using implicit generalized mid-point schemes. A two-scale procedure for the simulation of composite structures is developed: a finite element (FE) program at macro-scale linked to the homogenization module at micro-scale. An extensive validation of the homogenization predictions against experimental data and direct unit cell FE simulations is conducted for several composite systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanics of Materials - Volume 37, Issue 1, January 2005, Pages 45-68
Journal: Mechanics of Materials - Volume 37, Issue 1, January 2005, Pages 45-68
نویسندگان
I. Doghri, C. Friebel,