کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9796169 1514942 2005 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Strain evolution after fiber failure in a single-fiber metal matrix composite under cyclic loading
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Strain evolution after fiber failure in a single-fiber metal matrix composite under cyclic loading
چکیده انگلیسی
The evolution of in situ elastic strain with cyclic tensile loading in each phase of a single Al2O3-fiber/aluminum-matrix composite was studied using neutron diffraction (ND). An analytical model appropriate for metal matrix composites (MMCs) was developed to connect the measured axial strain evolution in each phase with the possible micromechanical events that could occur during loading at room temperature: fiber fracture, interfacial slipping, and matrix plastic deformation. Model interpretation showed that the elastic strain evolution in the fiber and matrix was governed by fiber fracture and interface slipping and not by plastic deformation of the matrix, whereas the macroscopic stress-strain response of the composite was influenced by all three. The combined single-fiber composite model and ND experiment introduces a new and quick engineering approach for qualifying the micromechanical response in MMCs due to cyclic loading and fiber fracture.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 399, Issues 1–2, 15 June 2005, Pages 33-42
نویسندگان
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