کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7889423 1509860 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Combining interface damage and friction in cohesive interface models using an energy based approach
ترجمه فارسی عنوان
ترکیب خسارت و اصطکاک رابط در مدل های یکپارچه رابط با استفاده از یک روش مبتنی بر انرژی
کلمات کلیدی
مدل منطقه محصور، مدل عنصر رابط آسیب رابط و اتصال اصطکاک، رابط سختی وابستگی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
Cohesive zone models coupling interface damage and friction have been developed in the literature and are available in the commercial finite element package ABAQUS to consider the enhancing effect of through-thickness compression on interfacial fracture resistance. It is revealed in this paper that these models are extremely dependent on interface stiffness, because interface stiffness reduction factor is used to combine damage and friction in these models. The interfacial constitutive law converges but only when the interface is extremely stiff and an unrealistic evolution of the interface damage is produced. A new approach is then developed which uses a cohesive energy related parameter to combine interface damage and friction. The behaviour of the new coupled model is independent of the interface stiffness once the interface is moderately stiff. The new and existing damage/friction coupled models have been employed to simulate the shear failure of a composite specimen and the predictions are compared against the experimental data in the literature. The new model produces converged results over a wide range of interface stiffness and the predictions match the experiments quite well, better than the existing models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 112, September 2018, Pages 290-298
نویسندگان
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