期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 107, 期 34, 页码 14964-14967出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1005537107
关键词
fracture mechanics; colloids; ceramics
资金
- National Science Foundation [DBI-0619674]
- Unilever
Colloidal coatings, such as paint, are all around us. However, we know little about the mechanics of the film-forming process because the composition and properties of drying coatings vary dramatically in space and time. To surmount this challenge, we extend traction force microscopy to quantify the spatial distribution of all three components of the stress at the interface of two materials. We apply this approach to image stress near the tip of a propagating interface crack in a drying colloidal coating and extract the stress intensity factor.
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