Stress Assisted Diffusion in Elastic and Viscoelastic Materials.
Abstract
The governing field equations and boundary conditions for stress assisted diffusion are derived from basic principles of continuum mechanics and irreversible thermodynamics. Attention is confined to elastic and viscoelastic material response, with emphasis on isotropy and the case of small strains. It is shown that both the diffusion process and the saturation levels are stress dependent. In viscoelastic materials the time-dependence of the moisture boundary condition causes the saturation level to drift with time. In addition, the diffusion process becomes non-linear in stress, in spite of the linearity of the mechanical behavior. Keywords: Moisture diffusion.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1985
- Accession Number
- ADA169296
Entities
People
- Y. Weitsman
Organizations
- Texas A&M University