An Upper Bound Approach for Analysis of Hydroforming of Sheet Metals
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 17، شماره: 8
سال انتشار: 1383
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 223
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شناسه ملی سند علمی:
JR_IJE-17-8_008
تاریخ نمایه سازی: 19 اسفند 1400
چکیده مقاله:
Considering a kinematical velocity admissible field, the upper bound method has beenused for predicting the amount of pressure in hydroforming of sheet metals. The effects of workhardening, friction and blank size have been considered in pressure prediction. Also the effect ofsheet thickness variation has been considered in the present work formulations. The relation betweenpressure and punch stroke has been obtained and optimized by changing the selective parameters inthe velocity components. The results for cylindrical and hemispheric parts have been obtained andcompared with the published experimental results. The effects of work hardening, friction and blanksize on hydroforming pressure have been examined on an elliptical part. Good agreement was foundbetween the experimental and numerical results.
کلیدواژه ها:
نویسندگان
M. R. Emami
Mechanical Engineering, Sharif University of Technology
M. Bagherzadeh
Chemical & Petroleum Engineering, Sharif University of Technology
A. Assempour
Mechanical Engineering, Sharif University of Technology