کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
500012 863069 2006 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Prediction of crack evolution and effective elastic behavior of damage-tolerant brittle composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Prediction of crack evolution and effective elastic behavior of damage-tolerant brittle composites
چکیده انگلیسی

A constitutive model based on a combination of a fracture-mechanics based model and micromechanical formulations is developed to predict the crack evolution and effective mechanical behavior of damage-tolerant brittle composites. The constitutive model is cast in a rate form and considers microcrack nucleation rate and microcrack growth rate. The effective moduli of the composites containing different crack distributions are formulated using the self-consistent method and differential scheme. The constitutive model is then implemented into finite element codes to solve boundary value problems of the composites. Numerical simulations on a benchmark problem are carried out to illustrate the model features. Finally, to further assess the validity of the present framework, the present predictions are compared with experimental data on brittle composites.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 196, Issues 1–3, 1 December 2006, Pages 118–133
نویسندگان
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