Zobrazeno 1 - 10 of 54 pro vyhledávání: '"Ahmad R. Najafi"'
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Akademický článek
A Novel Digital Design Approach for Metal Additive Manufacturing to Address Local Thermal Effects
Autor: Vignesh I. Perumal, Ahmad R. Najafi, Antonios Kontsos
Publikováno v: Designs, Vol 4, Iss 4, p 41 (2020)
The reliability and performance qualification of additively manufactured metal parts is critical for their successful and safe use in engineering applications. In current powder-bed fusion type metal additive manufacturing processes, local thermal ac
Externí odkaz: https://doaj.org/article/c21936f0b6ca444bbf7316668e8cb391
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2
Damage analysis of human cortical bone under compressive and tensile loadings
Autor: Ebrahim Maghami, Jason P. Moore, Timothy O. Josephson, Ahmad R. Najafi
Publikováno v: Computer Methods in Biomechanics and Biomedical Engineering. 25:342-357
Developing advanced fracture tools can increase the understanding of crack growth trajectories in human cortical bone. The present study investigates fracture micromechanics of human cortical bone under compressive and tensile loadings utilizing a ph
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37c238848db2e86c607714588bf6fcb0
https://doi.org/10.1080/10255842.2021.2023135
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6
Influence of age-related changes on crack growth trajectories and toughening mechanisms in human dentin
Autor: Ebrahim Maghami, Ahmad R. Najafi
Publikováno v: Dental materials : official publication of the Academy of Dental Materials. 38(11)
Dentin microstructure undergoes changes with age and its materials properties degrade over time. In the present study, we investigate the coupled influence of increased filled tubules and decreased materials properties on the fracture behavior of hum
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21898a914dba74dd1d358207a5f5e6ec
https://pubmed.ncbi.nlm.nih.gov/36184336
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9
A MULTIFUNCTIONAL AND RECONFIGURABLE MICROVASCULAR COMPOSITE
Autor: Kurt Schab, K. B. Nakshatrala, Urmi Devi, Zachary J. Phillips, Reza Pejman, Ahmad R. Najafi, Jason F. Patrick
Publikováno v: American Society for Composites 2021.
Fiber-reinforced polymer (FRP) composites, consisting of stiff/strong fibers embedded within a continuous matrix, are a lightweight structural platform supporting an array of modern applications. Bioinspired vascularization of fiber-composites can au
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::faa9f9adea807be2de7ae4ca04d74cf5
https://doi.org/10.12783/asc36/35898
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10
Topology optimization of microvascular composites for active-cooling applications using a geometrical reduced-order model
Autor: Reza Pejman, Ole Sigmund, Ahmad R. Najafi
Publikováno v: Pejman, R, Sigmund, O & Najafi, A R 2021, ' Topology optimization of microvascular composites for active-cooling applications using a geometrical reduced-order model ', Structural and Multidisciplinary Optimization, vol. 64, pp. 563–583 . https://doi.org/10.1007/s00158-021-02951-x
In this study, we develop a design methodology with a basis in gradient-based topology optimization and a geometrical reduced-order thermal/hydraulic model for actively cooled microvascular composite panels. The proposed method is computationally ver
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6be3f605328dbf688d66fdca562dcc6
https://doi.org/10.1007/s00158-021-02951-x
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