کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
279150 1430334 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spatially resolved observations of strain fields at necking and fracture of anisotropic hardened steel sheet material
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Spatially resolved observations of strain fields at necking and fracture of anisotropic hardened steel sheet material
چکیده انگلیسی

In this work plastic strain localization, also referred to as necking, of press-hardened ultra-high strength steel is observed using digital speckle correlation. The region of the neck is studied during tensile tests of specimens specially designed to facilitate strain localization at an inner point of the material, thus avoiding edge effects on localization and fracture. By using measurements with a length scale small enough to properly resolve the neck, its growth and shape can be studied. Furthermore, the anisotropy of the material is investigated by examining specimens cut out at different angles to the rolling direction. It is seen that the local fracture strain of specimens cut out along the rolling direction is approximately twice as high as it is for specimens cut out perpendicular to the rolling direction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 46, Issue 13, 15 June 2009, Pages 2750–2756
نویسندگان
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