کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
820653 906714 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simulations and experiments of open hole tension tests – Assessment of intra-ply plasticity, damage, and localization
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Simulations and experiments of open hole tension tests – Assessment of intra-ply plasticity, damage, and localization
چکیده انگلیسی

Laminated composites with various layups of unidirectional carbon fiber reinforced epoxy are investigated by numerical modeling and experimental testing. Open hole tension configurations are studied with special considerations of the non-linear behavior of the plies. Computational predictions are based on an anisotropic constitutive material law which includes plasticity and damage, the latter comprise hardening as well as softening. Experimental evaluations include a 3D image correlation photogrammetry system for capturing the strain fields of the sample surfaces.The open hole tension configuration represents a structural problem, in which the stress distribution is highly non-uniform. The measured and the predicted strain fields as well as the localization zones show very good agreement which indicates that the governing intra-ply mechanisms are captured well by the constitutive law.


► Simulations and experiments of laminated composite open hole specimens are performed.
► A constitutive ply model is utilized which combines plasticity, damage, and softening.
► The strain fields are measured with a 3D image correlation photogrammetry system.
► Simulations and experiments show excellent agreement for the strain distribution.
► Crucial non-linear intra-ply mechanisms are captured well by the constitutive model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 72, Issue 10, 8 June 2012, Pages 1090–1095
نویسندگان
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