PSI - Issue 51

Zahra Silvayeh et al. / Procedia Structural Integrity 51 (2023) 141–144 Z. Silvayeh et al. / Structural Integrity Procedia 00 (2023) 000–000

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4. Summary and conclusions The static strength of hybrid screw-bonded lap joints of 1 mm-thick EN AW-6016-T4 aluminum alloy sheets and 4.5 mm-thick plates consisting of three 1.5 mm-thick cross-laminated beech veneers was tested under shear-tensile loading. The cover veneers of the plates were oriented longitudinal (L) or transverse (T) to the loading direction, and the stacking order of the veneers was L/T/L or T/L/T. Regardless of the stacking order, the adhesive layer provided the main contribution to the static strength of the joints, whereas the screws contributed just little. Hence, optimizing adhesive bonding between the aluminum alloy sheet and the veneer plate is mandatory for obtaining joints with high load-bearing capacity. The stacking order and thus the fiber orientation of the cover veneers influenced the fracture behavior, which became evident in the force-displacement curve monitored during uniaxial testing of the joints. Veneer plates with the L/T/L stacking order withstood higher maximum tensile force but provided lower pull-out resistance of the screws than plates with the T/L/T stacking order. Acknowledgement This study was co-funded by the Scientific & Technological Cooperation program of the Austrian Federal Ministry of Education, Science and Research (BMBWF) and of the Slovenian Ministry for Education, Science and Sport (MESS). This joint program is managed by the Austrian Agency for Education and Internationalization (OeAD) and by the Slovenian Research Agency (ARRS). Samples were prepared within the “Modelling, Production and Further Processing of Eco-Hybrid Structures and Materials” (CARpenTiER) project funded by the Austrian Federal Ministries of Climate Action, Environment, Energy, Mobility, Innovation and Technology (BMK) and of Labor and Economy (BMAW), by the Province of Styria, and by partner companies within the Competence Centers for Excellent Technologies (COMET) program, which is processed by the Austrian Research Promotion Agency (FFG) and by the Styrian Business Promotion Agency (SFG). References Baumann, G., Stadlmann, A., Kurzböck, C., Feist, F., 2019. Crash-proof Wood Composites in Lightweight Bodyworks of the Future. ATZ Worldwide 121(11), 48–51. Baumann, G., Brandner, R., Müller, U., Kumpenza, C., Stadlmann, A., Feist, F., 2020. Temperature-Related Properties of Solid Birch Wood under Quasi-Static and Dynamic Bending. Materials 13, 5518. Domitner, J., Auer, P., Stippich, J., Silvayeh, Z., Jessernig, S., Peiser, L., Hönsch, F., Sommitsch, C., 2022a. Riv-bonding of aluminum alloys with high-strength steels against the favorable joining direction. Journal of Materials Engineering and Performance 31(9), 6970–6979. Domitner, J., Silvayeh, Z., Predan, J., Auer, P., Stippich, J., Sommitsch, C., Gubeljak, N., 2022b. Load-bearing capacities and fracture modes of self-piercing-riveted, adhesive-bonded and riv-bonded aluminum joints at quasi-static and cyclic loadings. Journal of Materials Engineering and Performance, https://doi.org/10.1007/s11665-022-07677-5. Domitner, J., Silvayeh, Z., Predan, J., Auer, P., Stippich, J., Enzinger, N., Gubeljak, N., 2023a. Load-bearing capacity of hybrid riv-bonded aluminum-magnesium joints at quasi-static and cyclic loadings. Journal of Manufacturing Processes, accepted for publication . Domitner, J., Silvayeh, Z., Predan, J., Graf, E., Krenke, T., Gubeljak, N., 2023b. Mechanical performance and failure behavior of hybrid screw bonded joints of aluminum sheets and cross-laminated birch veneer plates. Engineering Failure Analysis, accepted for publication . Domitner, J., Silvayeh, Z., Predan, J., Jerenec, F., Auer, P., Stippich, J., Ferlič, L., Štefane, P., Sommitsch, C., Gubeljak, N., 2022c. Influence of the sheet edge condition on the fracture behavior of riv-bonded aluminum-magnesium joints. Key Engineering Materials 926, 1541–1548. Imakawa, K., Ochiai, Y., Aoki, K., Hori, N., Takemura, A., Yamaguchi, T., 2022. Mechanical properties of hybrid joints in timber structures. Journal of Wood Science 68, 37. Kohl, D., Link, P., Böhm, S., 2016. Wood As A Technical Material For Structural Vehicle Components. Procedia CIRP 40, 557–561. Müller, U., Jost, T., Kurzböck, C., Stadlmann, A., Wagner, W., Kirschbichler, S., Baumann, G., Pramreiter, M., Feist, F., 2020. Crash simulation of wood and composite wood for future automotive engineering. Wood Material Science & Engineering 15(5), 312–324. Potgorschek, L., Domitner, J., Hönsch, F., Sommitsch, C., Kaufmann, S., 2020. Numerical simulation of hybrid joining processes: self-piercing riveting combined with adhesive bonding. Procedia Manufacturing 47, 413–418. Taub, A., De Moor, E., Luo, A., Matlock, D.K., Speer, J.G., Vaidya, U., 2019. Materials for Automotive Lightweighting. Annual Review of Materials Research 49, 327–359.