PSI - Issue 68

Bahman Paygozar et al. / Procedia Structural Integrity 68 (2025) 1166–1172 Bahman Paygozar et al. / Structural Integrity Procedia 00 (2025) 000–000

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5. Conclusions This study investigated the feasibility of a voxel-based approach in simulating fracture behavior (e.g., fracture resistance and crack propagation) of additively manufactured BCC lattice materials through the XFEM technique. The PLA's mechanical and fracture properties were extracted beforehand to be utilized in the numerical analyses. The failure load and crack propagation extracted from numerical investigations of solid and voxel lattices were compared together, and the following points were concluded: • Consideration of internal defects of lattice materials in numerical analyses using micro-CT imagining • Predicting failure load with an error of less than 10% compared to the experiments • Simplicity of analyses in voxel-based approach owing to cubic elements used • Simulating the crack propagation in lattice materials by the XFEM technique • Prediction of locations prone to failure in lattice materials Acknowledgment This research was funded by a grant from The Scientific and Technological Research Council of Türkiye, project number 122M823. Akhavan-Safar, A., M. R. Ayatollahi, S. Safaei & L. F. M. da Silva (2020) Mixed mode I/III fracture behavior of adhesive joints. International Journal of Solids and Structures, 199, 109-119. Campilho, R. D. S. G., M. D. Banea, F. J. P. Chaves & L. F. M. d. Silva (2011) eXtended Finite Element Method for fracture characterization of adhesive joints in pure mode I. Computational Materials Science, 50, 1543-1549. Chai, X., M. van Herk, M. C. C. M. Hulshof & A. Bel (2012) A voxel-based finite element model for the prediction of bladder deformation. Medical Physics, 39, 55-65. Geng, X., Y. Lu, C. Liu, W. Li & Z. Yue (2019) Fracture characteristic analysis of cellular lattice structures under tensile load. International Journal of Solids and Structures, 163, 170-177. Gu, H., A. Shterenlikht & M. Pavier (2019) Brittle fracture of three-dimensional lattice structure. Engineering Fracture Mechanics, 219, 106598. Guillén-Rujano, R., J. J. Ku-Herrera & A. Hernández-Pérez (2021) Mode III Fracture Toughness Measurement Using the Transverse Shear Cracked Plate Specimen. Experimental Mechanics, 61, 1419-1430. Linul, E., L. Marsavina & D. I. Stoia (2020) Mode I and II fracture toughness investigation of Laser-Sintered Polyamide. Theoretical and Applied Fracture Mechanics, 106, 102497. Mubashar, A., I. A. Ashcroft & A. D. Crocombe (2014) Modelling Damage and Failure in Adhesive Joints Using A Combined XFEM-Cohesive Element Methodology. The Journal of Adhesion, 90, 682-697. Paygozar, B., M. D. Banea, M. A. S. Sadigh & L. F. M. da Silva (2020a) Adhesively bonded aluminium double-strap joints: effects of patch part on failure load. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 42, 589. Paygozar, B., S. A. Dizaji & L. F. M. da Silva (2020b) Bonding dissimilar materials via adhesively bonded spot-welded joints: cohesive zone model technique. Journal of Adhesion Science and Technology, 34, 2352-2363. Paygozar, B. & R. M. Gorguluarslan (2023a) Improving the energy absorption capacity of bending-dominated additively manufactured polylactic acid (PLA) lattices. Mechanics of Advanced Materials and Structures, 1-20. Paygozar, B. & R. M. Gorguluarslan (2023b) Investigating Failure Behavior of Adhesive Joints with Dissimilar Materials of Steel and Additively Manufactured PLA. Transactions of the Indian Institute of Metals, 76, 3041-3048. Paygozar, B. & R. M. Gorguluarslan (2024) Effects of Print Orientation on Mode-I Fracture Toughness of Additively Manufactured PLA: Simulation by XFEM. Procedia Structural Integrity, 61, 232-240. Sadigh, M. A. S., G. Marami & B. Paygozar (2018) Failure simulation in resistance spot-welded lap-joints using cohesive zone modeling. Journal of Central South University, 25, 2567-2577. Wingender, D. & D. Balzani (2022) Simulation of crack propagation through voxel-based, heterogeneous structures based on eigenerosion and finite cells. Computational Mechanics, 70, 385-406. Yang, Z., Y. C. Yabansu, D. Jha, W.-k. Liao, A. N. Choudhary, S. R. Kalidindi & A. Agrawal (2019) Establishing structure-property localization linkages for elastic deformation of three-dimensional high contrast composites using deep learning approaches. Acta Materialia, 166, 335-345. References