Abstract
A variational procedure for estimating the effective constitutive behavior of polycrystalline materials undergoing high-temperature creep was developed. The procedure is based on a new variational principle allowing the determination of the effective potential function of a given nonlinear polycrystal in terms of the corresponding potential for a linear comparison polycrystal with an identical geometric arrangements of its constituent single crystal gains. It has the advantage over self-consistent procedure of Hutchinson that it may be applied, without any essential complications, to aggregates of crystals with slip systems exhibiting different creep rules and to general loading conditions.
| Original language | English |
|---|---|
| Pages (from-to) | 121-142 |
| Number of pages | 22 |
| Journal | Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences |
| Volume | 448 |
| Issue number | 1932 |
| DOIs | |
| State | Published - 1 Jan 1995 |
ASJC Scopus subject areas
- General Engineering
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