A New Calibration Method for FLCs in the M-K Frame-Work
The main drawback of the method proposed by Marciniak and Kuczynski for prediction of the limit strains in sheet metal forming processes is requirement of an experimental point of the forming limit curve (FLC) in order to calibrate the curve. The purpose of this work is to introduce a new method to calibrate the FLC using the M-K model in which no experimental data is needed.To achieve this goal, many experimental FLCs were collected from the literature and the values of the initial inhomogeneity factors were determined for them with trial and error aproach.Using these data, an empirical law was developed to predict the value of inhomogeneity factor.The resultant curves show good agreement with the experiments.
Forming Limit Curve M-K Method Inhomogeneity Factor Empirical Law
Amir Ghazanfari Ahmad Assempour
Center of Excellence in Design,Robotics and Automation,Department of Mechanical Engineering,Sharif University of Technology,Azadi Avenue,Tehran,Iran
国际会议
厦门
英文
426-431
2011-07-08（万方平台首次上网日期，不代表论文的发表时间）