| Cracking of asphalt concrete pavement with semi-rigid base course is influenced by many complex factors. This thesis applies neural net's theory and three-dimension dynamic technique of simulation to research. The author develops emulator system of crack's forming, and that draws up corresponding emulator program.The paper makes use of a lot of data coming from practice to train neural net, then it calculates and predicts stress intensity factor, what's more, that simulates crack's forming. Analyzing results and consideration, result indicates that it is feasible and practical to apply neural net's theory to compute and prediction, what's more, to avoid a lot If corrupt which is caused by model of mathematics and mechanics not conforming to practice.We know that three-dimension dynamic technique of simulation changes motionless and two-dimension data's analyze, and provides whole dynamic and lifelike process in the screen by three-dimension visual technique. |
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