4.0 in metal forming – questions and challenges

Guessing in Multiple Choice Questions: Challenges and Strategies

Introduction: Guessing is one of the most challenging issues in multiple choice questions. Several strategies, such as negative scoring, have been suggested for preventing students from choosing the right answer just by chance. However, there is no general agreement on using such strategies. The aim of this study was to review the scoring methods which are used for reducing guessing, and evalua...

Prediction of Instability in Planar Anisotropic Sheet Metal Forming Processes

In this paper instability of planar anisotropic sheet metal during a few forming processes is investigated for the first time. For this reason components of the constitutive tangent tensor for planar anisotropic sheets are developed. By using the above tensor location of necking is predicted. Direction of the shear band is also predicted using the acoustic tensor. A finite element program is pr...

Metal-on-Metal: Questions & Answers

Qcd: Questions, Challenges, and Dilemmas

An introduction to some outstanding issues in QCD is presented, with emphasis on work by Diakonov and co-workers on the in uence of the instanton vacuum on low-energy QCD observables. This includes the calculation of input valence-parton distributions for deep-inelastic scattering. Introductory talk given at the XXIV SLAC Summer Institute on Particle Physics \The Strong Interaction from Hadrons...

spring back compensation in metal sheet forming

0