Abstract
Single point incremental forming (SPIF) and Double-sided incremental forming (DSIF) are two main variants of incremental sheet forming (ISF) processes. Tension under cyclic bending (TCB) have been developed as a means for experimental evaluation and validation of the SPIF process and further extended to DSIF process by adding a compression force (TCBC) in recent years.
In this study, an analytical model is proposed to capture the localised deformation and stress evolutions due to bending, reverse-bending and additional compression in TCB and TCBC tests as a simplification of SPIF and DSIF processes. The results show the through-thickness stress variation has determinative influence on fracture initiation. The effects of test parameters and their interactions on formability were evaluated. Although the surface contact deformation and material thinning are simplified in the analytical model, the results obtained are comparable to experimental testing and finite element (FE) simulations. This work shows that the analytical model can be used as an effective means to decouple the complex deformation modes and local stress evolutions of TCB and TCBC and to provide a new insight into SPIF and DSIF processes.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Lu, B., et al.: Investigation of material deformation mechanism in double side incremental sheet forming. Int. J. Mach. Tools Manuf. 93, 37–48 (2015)
Emmens, W.C., van den Boogaard, A.H.: Incremental forming by continuous bending under tension—an experimental investigation. J. Mater. Process. Technol. 209(14), 5456–5463 (2009)
Gatea, S., Ou, H., Lu, B., McCartney, G.: Modelling of ductile fracture in single point incremental forming using a modified GTN model. Eng. Fract. Mech. 186, 59–79 (2017)
Benedyk, J.C., Kinsey, B.L., Korkolis, Y.P., Roemer, T.J.: Fundamental studies of continuous bending under tension (CBT) and potential automotive forming applications. Mater. Today Proc. 2(10), 4998–5005 (2015)
Barrett, T.J., et al.: Material modeling and simulation of continuous-bending-under-tension of AA6022-T4. J. Mater. Process. Technol. 287, 116658 (2021)
Ai, S., Long, H.: Finite element modelling of material deformation and damage by tension under cyclic bending and compression test. In: AIP Conference Proceedings, vol. 2113, no. 1, p. 180012. AIP Publishing LLC, July 2019
Ai, S., Dai, R., Long, H.: Investigating formability enhancement in double side incremental forming by developing a new test method of tension under cyclic bending and compression. J. Mater. Process. Technol. 275, 116349 (2020)
Peng, W., Ou, H.: Deformation mechanisms and fracture in tension under cyclic bending plus compression, single point and double-sided incremental sheet forming processes. Int. J. Mach. Tools Manuf. 184, 103980 (2023)
Bai, Y., Wierzbicki, T.: A new model of metal plasticity and fracture with pressure and Lode dependence. Int. J. Plast. 24(6), 1071–1096 (2008)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Peng, W., Ou, H. (2024). Modelling of Stress Evolution and Its Effect on Formability in Tension Under Cyclic Bending Plus Compression. In: Mocellin, K., Bouchard, PO., Bigot, R., Balan, T. (eds) Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity. ICTP 2023. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-41023-9_71
Download citation
DOI: https://doi.org/10.1007/978-3-031-41023-9_71
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-41022-2
Online ISBN: 978-3-031-41023-9
eBook Packages: EngineeringEngineering (R0)