| Abstract: | Rocks and many other materials display a rather complicated, but characteristic, dependence of friction on sliding history. These effects are well-described by empirical rate- and state-dependent constitutive formulations which have been utilized for analysis of fault slip and earthquake processes. We present a procedure for direct quantitative microscopic observation of frictional contacts during slip. The observations reveal that frictional state dependence represents an increase of contact area with contact age. Transient changes of sliding resistance correlate with changes in contact area and arise from shifts of contact population age. Displacement-dependent replacement of contact populations is shown to cause the diagnostic evolution of friction over a characteristic sliding distance that occurs whenever slip begins or sliding conditions change. ?? 1994 Birkha??user Verlag. |
| Genre: | Article |
| ProdID: | 70016962 |
| Citation Author: | Dieterich, J. H.; Kilgore, B. D. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 302 |
| Citation Issue: | 1-3 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Pure and Applied Geophysics PAGEOPH |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 20 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Direct observation of frictional contacts: New insights for state-dependent properties; 1994; Article; Journal; Pure and Applied Geophysics PAGEOPH; Dieterich, J. H.; Kilgore, B. D. |
| Citation Start Page: | 283 |
| Citation Volume: | 143 |
| Citation Year: | 1994 |
| Type: | citation/reference |
| Text: | Direct observation of frictional contacts: New insights for state-dependent properties; 1994; Article; Journal; Pure and Applied Geophysics PAGEOPH; Dieterich, J. H.; Kilgore, B. D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1007/BF00874332 |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | |
