3-D global/local analysis of composite hip prostheses – a model for multiscale structural analysis

Autor: Sherrill B. Biggers, J R de Andrade, Sundar Srinivasan, R. A. Latour
Rok vydání: 1999
Předmět:
Zdroj: Composite Structures. 45:163-170
ISSN: 0263-8223
DOI: 10.1016/s0263-8223(99)00020-3
Popis: The need for contextual multiscale analysis in the design of hip prostheses made from composite materials is queried using the 3-D global/3-D local (3-D GL) method. Continuum level solutions at the global structural scale as well as local microstructural level solutions were obtained and compared for an in situ composite hip prosthesis. The comparison yields a set of guidelines for the design of hip prostheses made from laminated fiber reinforced polymer (FRP) composites. As a first step, global continuum level solutions need to be obtained but only after accounting for the nonlinearity of the structure. Secondly, a local microstructural analysis at the ply level is required if issues of relative prosthesis strength are to be examined. While a linear solution may initially be obtained for comparative purposes, accuracy demands that a nonlinear solution be obtained at the local level as well.
Databáze: OpenAIRE