کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
771318 897621 2010 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Isotropic continuum damage mechanics for concrete under cyclic loading: Stiffness recovery, inelastic strains and frictional sliding
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Isotropic continuum damage mechanics for concrete under cyclic loading: Stiffness recovery, inelastic strains and frictional sliding
چکیده انگلیسی

A three dimensional set of constitutive equations for modelling quasi-brittle materials such as concrete is presented. It is formulated within the framework of irreversible processes thermodynamics in order to fulfill physical consistency. A single scalar damage variable has been introduced in order to take into account nonlinearities due to micro-cracking. The sliding influence and the partial stiffness recovery have been considered for cyclic loadings. Related numerical aspects are presented. Both plain and reinforced concrete structures are computed up to failure in order to show the efficiency and the robustness of the proposed model. Numerical results are both quantitatively and qualitatively compared to experimental data and highlight good agreement. The proposed constitutive equations seem accurate and robust enough for computing large scale structure subject not only to monotonic loadings but also to cyclic ones.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 77, Issue 8, May 2010, Pages 1203–1223
نویسندگان
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