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What physically happens to dynamic friction as you speed up and slow down in a velocity weakening material (draw changes in friction coefficient with changes in velocity – mark the direct and evolutionary effects (a and b terms and the a-b terms).

What physically happens to dynamic friction as you speed up and slow down in a velocity weakening material (draw changes in friction coefficient with changes in velocity – mark the direct and evolutionary effects (a and b terms and the a-b terms).

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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What physically happens to dynamic friction as you speed up and slow down in a velocity weakening material (draw changes in friction coefficient with changes in velocity – mark the direct and evolutionary effects (a and b terms and the a-b terms). What is the equation for Rate and State Behavior at low slip velocities? (describe the parameters) Draw an earthquake rupture on a strike slip fault plane showing the fast and slow slip regions. How and Why do the dynamic weakening mechanisms vary between the initial nucleation region and the subsequent rupture front (describe in terms of slip velocities and rupture front propagation velocities and the various proposed dynamic weakening mechanisms)?
Transcribed Image Text:What physically happens to dynamic friction as you speed up and slow down in a velocity weakening material (draw changes in friction coefficient with changes in velocity – mark the direct and evolutionary effects (a and b terms and the a-b terms). What is the equation for Rate and State Behavior at low slip velocities? (describe the parameters) Draw an earthquake rupture on a strike slip fault plane showing the fast and slow slip regions. How and Why do the dynamic weakening mechanisms vary between the initial nucleation region and the subsequent rupture front (describe in terms of slip velocities and rupture front propagation velocities and the various proposed dynamic weakening mechanisms)?
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