Michael P. Wagoner

TL;DR: In this article, a disk-shaped compact tension (DC(T) test has been developed as a practical method for obtaining the fracture energy of asphalt concrete, which is used to test cylindrical cores obtained from in-place asphalt concrete pavements or gyratory-compacted specimens fabricated during the mixture design process.

TL;DR: In this article, a disk-shaped compact tension (DC(T) test was proposed for determining low-temperature fracture properties of cylindrically shaped asphalt concrete test specimens.

TL;DR: In this article, a single-edge notched beam (SE(B)) test specimen was used to determine the fracture energy of asphalt concrete overlays and the results from the tests follow expected trends and test variability appears to be within a range typical for asphalt concrete fracture testing.

TL;DR: In this paper, a bilinear cohesive zone model was implemented into the clustered discrete element (DEM) framework to enable simulation of crack initiation and propagation in asphalt concrete, and verification of the cohesive zone fracture model was carried out using a double cantilever beam.

TL;DR: In this article, a two-dimensional clustered discrete element modeling (DEM) approach is implemented to simulate the complex crack behavior observed during asphalt concrete fracture tests, and a cohesive softening model (CSM) is adapted as an intrinsic constitutive law governing material separation in asphalt concrete.