کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1579455 1514831 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A modified criterion for shear band formation in bulk metallic glass under complex stress states
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
A modified criterion for shear band formation in bulk metallic glass under complex stress states
چکیده انگلیسی

A new criterion for shear band formation in metallic glasses is proposed based on the shear plane criterion proposed by Packard and Schuh [1]. This modified shear plane (MSP) criterion suggests that a shear band is not initiated randomly throughout the entire material under stress but is initiated at the physical boundaries or defects and at locations where the highest normal stress modified maximum shear stress occurs. Moreover, the same as in the shear plan criterion, the shear stress all over the shear band should exceed the shear yield strength of the material. For a complete shear band to form, both requirements need to be fulfilled. The shear yield strength of the material is represented by the shear stress of the point at which the shear band stops. The new criterion agrees very well with experimental results in both the determination of the shear yield strength and the shear band path.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issues 10–11, 25 April 2010, Pages 2613–2620
نویسندگان
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