کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9707224 | 1465721 | 2005 | 60 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cohesive zone modeling of dynamic failure in homogeneous and functionally graded materials
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
This work investigates dynamic failure processes in homogeneous and functionally graded materials (FGMs). The failure criterion is incorporated in the cohesive zone model (CZM) using both a finite cohesive strength and work to fracture in the material description. A novel CZM for FGMs is explored and incorporated into a finite element framework. The material gradation is approximated at the element level using a graded element formulation. Examples are provided to verify the numerical approach, and to investigate the influence of material gradation on crack initiation and propagation in Mode-I as well as in mixed-mode fracture problems. The examples include spontaneous rapid crack growth in homogeneous and FGM strips, dynamic crack propagation in actual monolithic and epoxy/glass FGM beams (three-point bending) under impact loading, and mixed-mode crack propagation in pre-cracked steel and graded plates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Plasticity - Volume 21, Issue 6, June 2005, Pages 1195-1254
Journal: International Journal of Plasticity - Volume 21, Issue 6, June 2005, Pages 1195-1254
نویسندگان
Zhengyu (Jenny) Zhang, Glaucio H. Paulino,