... an additional residual stress and therefore introduces a measurement error. In this study, it is shown that given an appropriate set of machining conditions, this measurement error can be compensated directly using a calibration stress factor σ cal computed in accordance with the properties of the workpiece...

... Element Analysis Calibration Stress triaxiality Fracture mechanism The present paper is concerned with the determination of ductile crack formation in a crack-free body. Crack formation is understood here as an appearance of a macroscopic crack with an order of 0.1 mm inside or on the surface...

...Jong-Ning Aoh, Associate Professor,; Chung-Sheng Wei, Ph. D. Candidate, Experimental validation of the calibration coefficients for integral hole-drilling method obtained from an improved three-dimensional FEM model was achieved using bending test of a cantilever beam. The experimental setup...

...Jong-Ning Aoh; Chung-Sheng Wei One of the important factors affecting the accuracy of stress values obtained from the hole-drilling method is the calibration coefficient. A three-dimensional model was established to determine the calibration coefficients for integral method. The constraint...

...Hasan Sofuoglu, Assistant Professor; Hasan Gedikli, Research Assistant; Jahan Rasty, Associate Professor, The main objective of this research was to investigate the effect of material properties, strain-rate sensitivity, and barreling on the behavior of friction calibration curves. The compression...

...Magnus Ekh; Anders Johansson; Hans Thorberntsson; B. Lennart Josefson Three well-known ratchetting models for metals with different hardening rules were calibrated using uniaxial experimental data from Bower (1989) [J. Mech. Phys. Solids, 31 , pp. 455–470], and implemented in the FE code ABAQUS...