The present paper is concerned with the design of plane-strain bending wide sheets driven by sheet’s geometric shape after unloading. solution based on ideal flow theory. It determines loading path (the dependence between dimensionless moment and tensile force) that produces desirable shape. theory valid for rigid perfectly plastic material model. A method proposed in literature combines a at a...

The biomass extrusion process for making biomass briquettes or logs normally requires large amounts of energy to overcome the springback of the material and friction with the die surface. Also, the products readily expand and disintegrate because of the retention of internal stresses. In this study, tests on vibration-assisted compaction of biomass were performed as a method to reduce the energ...

Within the Brite/EuRam project “DIGIMAN” a new optical measuring system for the assessment of sheet metal components in terms of shape accuracy and strain distribution has been developed. Based on the photogrammetrically measured geometric parameters of the object the system detects deviations from the desired geometry caused by springback and allows the strain analysis within critical stamping...