Torsion of a class of functionally graded shafts

Frank Rooney, Mauro Ferrari

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The torsion of bars with inhomogeneous shear moduli is considered, under different assumptions on the cross sectional geometry, and the spatial variation law for the moduli. In particular, bars of arbitrary geometry, and modulus that varies in the section only through a function of the coordinates are considered, under the additional assumption that the modulus be constant on the sectional boundary. Laminates are discussed. Novel solutions for the torsion of a circular cylindrical bar with angular symmetry are then presented.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Petroleum Division (Publication) PD
Place of PublicationNew York, NY, United States
Number of pages8
StatePublished - Jan 1 1995
EventProceedings of the Energy-Sources Technology Conference and Exhibition - Houston, TX, USA
Duration: Jan 29 1995Feb 1 1995


OtherProceedings of the Energy-Sources Technology Conference and Exhibition
CityHouston, TX, USA

ASJC Scopus subject areas

  • Geology
  • Geotechnical Engineering and Engineering Geology


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