Assessment Of Models And Methods For Pressurized Spherical Composites
Keywords
analytical modeling; elasticity; mechanical properties; numerical analysis; Spherical composites
Abstract
The elastic properties of a spherical heterogeneous structure with isotropic periodic components is analyzed and a methodology is developed using the two-scale asymptotic homogenization method (AHM) and spherical assemblage model (SAM). The effective coefficients are obtained via AHM for two different composites: (a) composite with perfect contact between two layers distributed periodically along the radial axis; and (b) considering a thin elastic interphase between the layers (intermediate layer) distributed periodically along the radial axis under perfect contact. As a result, the derived overall properties via AHM for homogeneous spherical structure have transversely isotropic behavior. Consequently, the homogenized problem is solved. Using SAM, the analytical exact solutions for appropriate boundary value problems are provided for different number of layers for the cases (a) and (b) in the spherical composite. The numerical results for the displacements, radial and circumferential stresses for both methods are compared considering a spherical composite material loaded by an inside pressure with the two cases of contact conditions between the layers (a) and (b).
Publication Date
2-1-2018
Publication Title
Mathematics and Mechanics of Solids
Volume
23
Issue
2
Number of Pages
136-147
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1177/1081286516673233
Copyright Status
Unknown
Socpus ID
85020024256 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/85020024256
STARS Citation
Guinovart-Sanjuán, David; Rizzoni, Raffaella; Rodríguez-Ramos, Reinaldo; Guinovart-Díaz, Raúl; and Bravo-Castillero, Julián, "Assessment Of Models And Methods For Pressurized Spherical Composites" (2018). Scopus Export 2015-2019. 8662.
https://stars.library.ucf.edu/scopus2015/8662