کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830598 1470357 2012 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fatigue behavior of laminated composites with a circular hole under in-plane uniaxial random loading
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Fatigue behavior of laminated composites with a circular hole under in-plane uniaxial random loading
چکیده انگلیسی

A modified fiber failure fatigue model is presented to evaluate the behavior of laminated composites with a central circular hole under in-plane uniaxial random/block loading. The analytical model presented is based on minimum strength model and fiber failure criterion under static loading available in the literature. The analysis starts with the determination of location of a characteristic curve around the hole and the stress state along the characteristic curve under in-plane uniaxial fatigue loading. Number of cycles to failure and location of failure are determined under given fatigue loading condition. Based on ply-by-ply analysis, ultimate fatigue failure and the corresponding number of cycles are determined. Degradation of material strength as a function of applied number of cycles is considered in the model presented. Random loading case is analyzed based on rainflow counting technique. Analytical predictions are compared with the experimental results for uniaxial block loading.


► An analytical method is presented for fatigue behavior of notched composites under in-plane uniaxial random/block loading.
► The method is based on minimum strength model and fiber failure criterion.
► The effect of load sequence on fatigue life and location of failure initiation are also presented.
► Analytical predictions are compared with the experimental results for uniaxial block loading.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 40, September 2012, Pages 245–256
نویسندگان
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