Analysis of coordination between asphalt mixture and fiber Bragg grating sensor

作者：Tian Geng Liang^*; Dong Ze Jiao; Hu Qing Li; Tan Yi Qiu

来源：Journal of Harbin Institute of Technology, 2009, 41(5): 73-76.

• Appraisal models
• Asphalt mixture
• Concentration of
• Coordination deformation
• FEM simulation
• Fiber Bragg grating sensor
• Fiber Bragg Grating Sensors
• Finite element software ABAQUS
• Four-point
• Local region
• Seal materials
• Simulation result
• Strain distributions
• Stress and strain
• Stress field

To research the coordination between asphalt mixture and fiber Bragg grating sensor (FBG), we used the large-scale finite element software ABAQUS to establish a coordination distortion appraisal model, which was the four-point-bend beam specimen, and analyzed the influence on simulation results with or without a FBG as well as the strain distribution around the sensor at different seal material modules. The result indicates that, under the same condition, the existence of high module sensor changes the distribution of stress and strain field, which causes the concentration of horizontal tensile stress around the sensor and reduces the tensile strain at the beam bottom and the changing range of the stress field. The influence on the local region is little, but it is great on the strain distribution of the whole beam; with the increase of the module, the tensile strain at the beam bottom and the changing range of the stress field are decreased gradually, while the decreasing rate falls gradually and tends to be stable.

• 出版日期2009