کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5456034 1514647 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Understanding indentation-induced elastic modulus degradation of ductile metallic materials
ترجمه فارسی عنوان
درک ضرایب مدول الاستیسیته از مواد دندانی فلزی ناشی از دندانه
کلمات کلیدی
خسارت، انداختن، برش، هادی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی
Noticeable degradation of the measured elastic moduli of ductile metals has been found in meso-/macro- indentation tests. Although this phenomenon has been exploited to estimate the fracture properties of ductile metallic materials, the mechanism of the indentation-induced damage is rarely studied. Finite element simulations show that the finite stiffness of an indentation system can cause a false degradation of the effective indentation modulus. However, the decay pattern is different from that due to the indentation damage. Through theoretical analysis and experimental measurements, it is shown that the elasticity degradation can be mainly attributed to the anisotropic damage caused by the shear deformation in the indentation test.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 696, 1 June 2017, Pages 445-452
نویسندگان
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