光纤光栅在路面剪切应力测试中的应用研究的中期报告摘要：本研究针对路面剪切应力测试的需要，采用光纤光栅技术，并借助数值仿真方法开展了相关应用研究。通过实验验证，光纤光栅具有较高的精度和灵敏度，并能够有效地测量路面的剪切应力。同时，在数值仿真方面，采用有限元方法模拟了路面剪切应力的分布特性，并将仿真结果与实验结果进行对比和分析。研究结果表明，光纤光栅结合有限元方法能够较为准确地分析路面剪切应力的分布情况，对于道路安全评估和维护等具有一定的参考价值。关键词：光纤光栅；路面剪切应力；数值仿真；有限元方法；道路安全评估Abstract：Inthisstudy,thefiberopticgratingtechnologywasusedfortheshearstresstestofroadsurface,andtherelatedapplicationresearchwascarriedoutthroughnumericalsimulation.Throughexperimentalverification,thefiberopticgratinghashighaccuracyandsensitivity,andcaneffectivelymeasuretheshearstressoftheroadsurface.Atthesametime,intermsofnumericalsimulation,thefiniteelementmethodisusedtosimulatethedistributioncharacteristicsoftheshearstressoftheroadsurface,andthesimulationresultsarecomparedandanalyzedwiththeexperimentalresults.Theresearchresultsshowthatthecombinationoffiberopticgratingandfiniteelementmethodcananalyzethedistributionofroadsurfaceshearstressaccurately,whichhascertainreferencevalueforroadsafetyevaluationandmaintenance.Keywords：fiberopticgrating；shearstressofroadsurface；numericalsimulation；finiteelementmethod；roadsafetyevaluation