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Non-rotationally symmetric joints – Mechanisms and load bearing capacity
DEVULAPALLY Deekshith Reddy, MARTIN Sven, TRÖSTER Thomas
download PDFAbstract. Traditionally, joints are cylindrical and rotationally symmetric. In the present study, non-rotationally symmetric joints are used for joining steel and Glass mat-reinforced thermoplastic sheets (GMT). In addition, the study also analyzes the impact of non-rotational symmetric joint rotation on the load-bearing capacity. Single lap joint specimens were fabricated using the In-Mold assembly technique for joining steel sheets with GMT. Tensile shear tests were performed on different orientations of the joint geometry, and it was observed that changing the joint orientation influences the load-bearing capacity. The joints are constitutively modeled using beam elements and the influence of joint rotation on load distribution is examined through a static simulation study.
Keywords
Non-Rotationally Symmetric Joints, Load Distribution, Joint Design, Anisotropic Joints
Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: DEVULAPALLY Deekshith Reddy, MARTIN Sven, TRÖSTER Thomas, Non-rotationally symmetric joints – Mechanisms and load bearing capacity, Materials Research Proceedings, Vol. 41, pp 1650-1659, 2024
DOI: https://doi.org/10.21741/9781644903131-183
The article was published as article 183 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] A. B. Ryberg and L. Nilsson, “Spot weld reduction methods for automotive structures,” Structural and Multidisciplinary Optimization, vol. 53, no. 4, pp. 923–934, Apr. 2016. https://doi.org/10.1007/S00158-015-1355-4/TABLES/4
[2] S. Martin, J. Schütte, C. Bäumler, W. Sextro, and T. Tröster, “Identification of joints for a load-adapted shape in a body in white using steady state vehicle simulations,” Forces in Mechanics, vol. 6, p. 100065, Feb. 2022. https://doi.org/10.1016/J.FINMEC.2021.100065
[3] S. Martin, A. A. Camberg, and T. Tröster, “Probability Distribution of Joint Point Loadings in Car Body Structures under Global Bending and Torsion,” Procedia Manuf, vol. 47, pp. 419–424, Jan. 2020. https://doi.org/10.1016/J.PROMFG.2020.04.324
[4] Q. Zhao et al., “Insights into the structural design strategies of multi-spot ultrasonic welded joints in thermoplastic composites: A finite element analysis,” Compos Struct, vol. 299, p. 115996, Nov. 2022. https://doi.org/10.1016/J.COMPSTRUCT.2022.115996
[5] J. Ekh and J. Schön, “Load transfer in multirow, single shear, composite-to-aluminium lap joints,” Compos Sci Technol, vol. 66, no. 7–8, pp. 875–885, Jun. 2006. https://doi.org/10.1016/J.COMPSCITECH.2005.08.015
[6] J. Ekh and J. Schön, “Finite element modeling and optimization of load transfer in multi-fastener joints using structural elements,” Compos Struct, vol. 82, no. 2, pp. 245–256, Jan. 2008. https://doi.org/10.1016/J.COMPSTRUCT.2007.01.005
[7] “DIN 8584-5 – Manufacturing processes forming under combination of tensile and compressive conditions – Part 5: Forming by raising; Classification, subdivision, terms and definitions | GlobalSpec.” Accessed: Dec. 14, 2023. [Online]. Available: https://standards.globalspec.com/std/430962/DIN%208584-5
[8] Y. Dewang, R. Purohit, and N. Tenguria, “A study on sheet metal hole-flanging process,” Mater Today Proc, vol. 4, no. 4, pp. 5421–5428, Jan. 2017. https://doi.org/10.1016/J.MATPR.2017.05.053
[9] T. Stallmeister and T. Tröster, “In-Mold-Assembly of Hybrid Bending Structures by Compression Molding,” Key Eng Mater, vol. 926 KEM, pp. 1457–1467, 2022. https://doi.org/10.4028/P-5FXP53
[10] “LS-DYNA ® KEYWORD USER’S MANUAL VOLUME II Material Models LIVERMORE SOFTWARE TECHNOLOGY CORPORATION (LSTC),” 2012, Accessed: Jan. 12, 2024. [Online]. Available: www.lstc.com
