Revisiting the wrinkling limits in flexible roll forming
- 7 July 2015
- journal article
- Published by SAGE Publications in The Journal of Strain Analysis for Engineering Design
- Vol. 50 (7), 528-541
- https://doi.org/10.1177/0309324715590956
Abstract
This article presents a new understanding on the deformation mechanics of flexible roll forming and is focused on the occurrence of flange wrinkling. The presentation draws from the experimental and numerical simulation of flexible roll forming to the determination of the wrinkling limits by means of a new theoretical and experimental methodology based on the utilization of rectangular test specimens loaded in axial compression. This research work is performed in mild steel sheets and the results show that the combined evolution of the effective strain with stress triaxiality obtained from finite element modelling of flexible roll forming and from the rectangular test specimens loaded in axial compression can be successfully utilized to predict the occurrence of flange wrinkling in variable cross-sectional profiles produced by flexible roll forming. The proposed methodology can, therefore, be considered an alternative to existing approaches based on simplified analytical and numerical procedures.Keywords
This publication has 7 references indexed in Scilit:
- Mechanics of sheet-bulk indentationJournal of the American Academy of Dermatology, 2014
- Investigation of a new incremental counter forming in flexible roll forming to manufacture accurate profiles with variable cross-sectionsInternational Journal of Machine Tools and Manufacture, 2014
- Simulation and experimental verification of flexible roll forming of steel sheetsThe International Journal of Advanced Manufacturing Technology, 2014
- Finite Element Analysis and Fracture Forecast of U Channel Flexible Roll FormingAdvanced Materials Research, 2013
- Accuracy, reliability and validity of finite element analysis in metal forming: a user's perspectiveEngineering Computations, 2009
- Research on strip deformation in the cage roll-forming process of ERW round pipesJournal of the American Academy of Dermatology, 2009
- Prediction of wrinkling initiation in sheet metal forming processesEngineering Computations, 2003