Abstract
A damage accumulation model for shear fatigue of asphalt-stone adhesion was developed with the aid of experimental data obtained from monotonic and dynamic force-controlled tests. Constant static- and stress-rate monotonic tests and cyclic fatigue tests were performed on the special designed specimens of double-layered-sandwich using dynamic thermal mechanics analyzer. Experimental results showed that it was feasible to describe monotonic and cyclic tests of stress-controlled mode using one single damage accumulation model based on stress–time path, which makes it possible to reduce the number of specimens tested and time-consuming fatigue tests are no longer necessary, since the same information can be obtained from monotonic test data without loss of accuracy. It also found that the bonding fracture in shear mainly attributes to cohesive failure through binder interlayer due to extensive creep deformation.
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