Computational homogenization of fatigue in additively manufactured microlattice structures
buir.contributor.author | Mozafari, Farzin | |
buir.contributor.author | Temizer, İlker | |
buir.contributor.orcid | Temizer, İlker|0000-0003-3043-7521 | |
dc.citation.epage | 384 | en_US |
dc.citation.issueNumber | 2 | en_US |
dc.citation.spage | 367 | en_US |
dc.citation.volumeNumber | 71 | en_US |
dc.contributor.author | Mozafari, Farzin | |
dc.contributor.author | Temizer, İlker | |
dc.date.accessioned | 2023-02-17T10:13:55Z | |
dc.date.available | 2023-02-17T10:13:55Z | |
dc.date.issued | 2023-02 | |
dc.department | Department of Industrial Engineering | en_US |
dc.description.abstract | A novel computational approach to predicting fatigue crack initiation life in additively manufactured microlattice structures is proposed based on a recently developed microplasticity-based constitutive theory. The key idea is to use the concept of (micro)plastic dissipation as the driving factor to model fatigue degradation in additively manufactured metallic microlattice. An ad-hoc curve-fitting procedure is proposed to calibrate the introduced material constitutive parameters efficiently. The well-calibrated model is employed to obtain fatigue life predictions for microlattices through a diverse set of RVE-based finite element fatigue simulations. The model’s predictive capabilities are verified by comparing the simulation results with experimental fatigue data reported in the literature. The overall approach constitutes a unified setting for fatigue life prediction of additively manufactured microlattice structures ranging from low- to high-cycle regimes. It is also shown that the model can be applied to technologically relevant microlattices with mathematically-created complex microstructure topologies. | en_US |
dc.description.provenance | Submitted by Evrim Ergin (eergin@bilkent.edu.tr) on 2023-02-17T10:13:55Z No. of bitstreams: 1 Computational_homogenization_of_fatigue_in_additively_manufactured_microlattice_structures.pdf: 2132603 bytes, checksum: 5a5c6ac6b31631a3c77b734228dd5121 (MD5) | en |
dc.description.provenance | Made available in DSpace on 2023-02-17T10:13:55Z (GMT). No. of bitstreams: 1 Computational_homogenization_of_fatigue_in_additively_manufactured_microlattice_structures.pdf: 2132603 bytes, checksum: 5a5c6ac6b31631a3c77b734228dd5121 (MD5) Previous issue date: 2023-02 | en |
dc.identifier.doi | 10.1007/s00466-022-02243-1 | en_US |
dc.identifier.issn | 0178-7675 | |
dc.identifier.uri | http://hdl.handle.net/11693/111494 | |
dc.language.iso | English | en_US |
dc.publisher | Springer | en_US |
dc.relation.isversionof | https://doi.org/10.1007/s00466-022-02243-1 | en_US |
dc.source.title | Computational Mechanics | en_US |
dc.subject | Additive manufacturing | en_US |
dc.subject | Fatigue | en_US |
dc.subject | Microlattice | en_US |
dc.subject | Micromechanics | en_US |
dc.subject | Microplasticity | en_US |
dc.title | Computational homogenization of fatigue in additively manufactured microlattice structures | en_US |
dc.type | Article | en_US |
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