Analysis of damaging and fracturing of framework dense gradation cement stabilized macadam base by ANSYS software

By means of the J Integral, the closed solution of energy liberation rate and the method of computing crack life by damage mechanics, the paper introduces how to calculate stress intensity factor of framework dense gradation cement stabilized macadam base by the ANSYS software, and analyses the fatigue and the fracture of the framework dense gradation cement stabilized macadam base structure. The computed result indicates that the stress intensity factor of crack tip increases with the increase of crack length and the increase of base elastic modulus.