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From yield stress to elastic instabilities: Tuning the extensional behavior of elastoviscoplastic fluids.
Abdelgawad, Mohamed S; Haward, Simon J; Shen, Amy Q; Rosti, Marco E.
Afiliación
  • Abdelgawad MS; Complex Fluids and Flows Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan.
  • Haward SJ; Micro/Bio/Nanofluidics Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan.
  • Shen AQ; Micro/Bio/Nanofluidics Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan.
  • Rosti ME; Complex Fluids and Flows Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan.
PNAS Nexus ; 3(6): pgae227, 2024 Jun.
Article en En | MEDLINE | ID: mdl-38911595
ABSTRACT
In this study, we delve into the intricacies of elastoviscoplastic (EVP) fluids, particularly focusing on how polymer additives influence their extensional behavior. Our findings reveal that polymer additives significantly alter the extensional properties of the EVP fluids, such as relaxation time and extensional stresses while having negligible impact on the shear rheology. Interestingly, the modified fluids exhibit a transition from yield stress-like behavior to viscoelastic-like behavior under high extensional rates, ultimately leading to destabilization under extreme deformation. This research enhances the fundamental understanding of EVP fluids and highlights potential advancements in applications, especially in precision-demanding fields like 3D printing.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: PNAS Nexus Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: PNAS Nexus Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido