Article (Scientific journals)
Ultrasound characterization of bioinspired functionally graded soft-to-hard composites: Experiment and modeling.
Aghaei, Ali; Bochud, Nicolas; Rosi, Giuseppe et al.
2022In Journal of the Acoustical Society of America, 151 (3), p. 1490
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Keywords :
Ultrasonography; Bone and Bones; Design variables; Emerging technologies; Functional grading; Functionally graded; Mechanical performance; Mechanistics; Multi materials; Recent progress; Tendon to bones; Ultrasound characterization; Arts and Humanities (miscellaneous); Acoustics and Ultrasonics
Abstract :
[en] Functional grading is a distinctive feature adopted by nature to improve the transition between tissues that present a strong mismatch in mechanical properties, a relevant example being the tendon-to-bone attachment. Recent progress in multi-material additive manufacturing now allows for the design and fabrication of bioinspired functionally graded soft-to-hard composites. Nevertheless, this emerging technology depends on several design variables, including both material and mechanistic ingredients, that are likely to affect the mechanical performance of such composites. In this paper, a model-based approach is developed to describe the interaction of ultrasound waves with homogeneous and heterogeneous additively manufactured samples, which respectively display a variation either of the material ingredients (e.g., ratio of the elementary constituents) or of their spatial arrangement (e.g., functional gradients, damage). Measurements are performed using longitudinal bulk waves, which are launched and detected using a linear transducer array. First, model is calibrated by exploiting the signals measured on the homogeneous samples, which allow identifying relationships between the model parameters and the material composition. Second, the model is validated by comparing the signals measured on the heterogeneous samples with those predicted numerically. Overall, the reported results pave the way for characterizing and optimizing multi-material systems that display complex bioinspired features.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Aghaei, Ali;  Univ Paris Est Creteil, Univ Gustave Eiffel, CNRS, UMR 8208, MSME, F-94010 Créteil, France
Bochud, Nicolas;  Univ Paris Est Creteil, Univ Gustave Eiffel, CNRS, UMR 8208, MSME, F-94010 Créteil, France
Rosi, Giuseppe;  Univ Paris Est Creteil, Univ Gustave Eiffel, CNRS, UMR 8208, MSME, F-94010 Créteil, France
Grossman, Quentin ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Génie biomécanique
Ruffoni, Davide  ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M)
Naili, Salah;  Univ Paris Est Creteil, Univ Gustave Eiffel, CNRS, UMR 8208, MSME, F-94010 Créteil, France
Language :
English
Title :
Ultrasound characterization of bioinspired functionally graded soft-to-hard composites: Experiment and modeling.
Publication date :
March 2022
Journal title :
Journal of the Acoustical Society of America
ISSN :
0001-4966
eISSN :
1520-8524
Publisher :
Acoustical Society of America, United States
Volume :
151
Issue :
3
Pages :
1490
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
CNRS-INSIS
Funding text :
The authors are in debt to Max Gattin for the fruitful discussions regarding the processing of the ultrasound signals and the Szabo wave equation. This work was partially supported by the BEST-AMUS project (IIN program, CNRS-INSIS, France).
Available on ORBi :
since 14 June 2022

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