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2013 | OriginalPaper | Chapter

8. Transformation Fields

Author : George J. Dvorak

Published in: Micromechanics of Composite Materials

Publisher: Springer Netherlands

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Abstract

Together with the stresses caused by mechanical loads, composite materials must withstand stresses caused by distribution of transformation strains or eigenstrains in individual phases or subvolumes of each phase. As pointed out in Sect. 3.6.1, the former term applies here to all physically based deformations not caused by mechanical loads, including actual phase transformations. Frequent sources of transformation strains are changes in temperature and/or moisture content, piezoelectric and magneto-electro-elastic and pyroelectric effects, (Benveniste 1992, 1993; Benveniste and Milton 2003), as well as diffusive and displacive transformations involved in kinetics of structural change in crystals and polycrystals (Ashby and Jones 1986), or martensitic phase transformations in steels, and shape memory alloys (Entchev and Lagudas 2002; Levitas and Javanbakh 2011). Inelastic deformations associated with plasticity, viscoelasticity and viscoplasticity will join this list in Chap. 12, but those will be analyzed in an entirely different setting.

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previous chapter Estimates of Mechanical Properties of Composite Materials

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Title: Transformation Fields
Author: George J. Dvorak
Publisher: Springer Netherlands
Book: Micromechanics of Composite Materials
Print ISBN: 978-94-007-4100-3

Electronic ISBN: 978-94-007-4101-0

Copyright Year: 2013
DOI: https://doi.org/10.1007/978-94-007-4101-0_8

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