کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
767883 | 897233 | 2009 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental investigation of the mixed-mode crack propagation in ZrO2/NiCr functionally graded materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Experimental investigation of the mixed-mode crack propagation in ZrO2/NiCr functionally graded materials Experimental investigation of the mixed-mode crack propagation in ZrO2/NiCr functionally graded materials](/preview/png/767883.png)
چکیده انگلیسی
Mixed-mode fracture response of ZrO2/NiCr functionally graded materials (FGMs) is investigated using fracture test, digital image correlation technique and extended finite element method. It is found that: (1) prior to crack initiation, the increasing elastic modulus ahead of crack-tip can enhance the mode mixity of crack-tip; (2) the crack with the increasing elastic modulus ahead of crack-tip kinks less than the one with the decreasing elastic modulus, which is caused by the elastic gradient and the local fracture toughness; (3) the heterogeneity of microstructure can cause the local perturbation but has no obvious effect on the overall crack propagation path.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 76, Issue 12, August 2009, Pages 1800–1810
Journal: Engineering Fracture Mechanics - Volume 76, Issue 12, August 2009, Pages 1800–1810
نویسندگان
Xin Jin, Linzhi Wu, Licheng Guo, Hongjun Yu, Yuguo Sun,