Numerical Simulation and Experimental Validation of Taylor Impact Test,Using Johnson-Cook Damage Criterion
- سال انتشار: 1392
- محل انتشار: کنفرانس دو سالانه بین المللی مکانیک جامدات تجربی
- کد COI اختصاصی: WMECH02_041
- زبان مقاله: انگلیسی
- تعداد مشاهده: 1487
نویسندگان
Msc Student
Assistant Professor
Associate Professor, Mechanical Engineering Department, Faculty of Engineering, University of Isfahan, Hezarjerib, ۸۱۷۴۶۷۳۴۴۱, Isfahan, Iran
چکیده
Investigation of impact problem is one of the most important challenges, confronting mechanical engineers and has a wide application in the branch of engineering. During the impact time, material endures high strain rate and large plastic deformation. The Taylor impact test is a famous impact test, in which a specimen rapidly impacts to a rather rigid body. In this study first, using Johnson-Cook damage criterion and Johnson-Cook hardening plastic model, Taylor impact test of a copper rod is simulated in the ABAQUS/Explicit finite element code. Then, deformation, damage initiation, and damage evolution of the rod for various velocity conditions are numerically achieved and compared with the experimental tests. The comparison of the numerical and empirical results shows good adaptation and reveals that the fracture zones can be well predicted. Hence, it is concluded that Johnson-Cook damage criterion is a robust model for predicting the damage initiation, evolution, andfracture in the impact problems.کلیدواژه ها
Numerical simulations; Taylor impact test; Johnson-Cook damage criterionمقالات مرتبط جدید
- Analytical determination of flexural rigidity of thin-walled pultruded composite I-beams
- Matrix-Dominated Damage Process in CFRP Composite Laminates underFlexural Loading Condition
- Indentation Size Scale Effect on Mechanical Properties of Cold SprayCoating
- Determination of Forming Limit Diagrams for Tailor Welded Blanks
- Control of dynamic building façade: design, analysis and experiments
اطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.