Rhéologie des matériaux en cours de prise : Approche théorique
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- 作者：Arnaud ; Laurent ; Villain ; Gé ; raldine ; Boutin ; Claude
- 关键词：rhé ; ologie ; homogé ; né ; isation ; maté ; riau hé ; té ; rogè ; ne ; maté ; riau é ; volutif ; prise ; viscoé ; lasticité ; rheology ; homogenization method ; heterogeneous material ; evolutive material ; setting
- 刊名：Comptes Rendus de l'Academie des Sciences Series IIB Mechanics
- 出版年：2000
- 出版时间：December, 2000
- 年：2000
- 卷：328
- 期：12
- 页码：855-862
- 全文大小：147 K
文摘
The rheological behavior of setting heterogeneous materials is studied from a theoretical approach by means of the homogenization technique of periodic medium. These materials considered as suspensions of gas bubbles at finite concentration in a viscoelastic matrix with low compressibility, present the macroscopic behavior of a compressible viscoelastic medium. The shear and volume macroscopic moduli are of the same order of magnitude and directly proportional to that of the fluid. The effective compressibility of the gas (out of thermal equilibrium) is added to these fluid contributions.