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As the automobile industry rapid development of high-grade highways, tyre will have a high demand, most of them discarded tires can be refurbished to be used again. Presently,Tyre output exceed 150 million in nation every year.Comparatively 1.2 million tyres are scraped every year,ranked second in the world.Scraed tyre pollution is defined to"black pollution".It’s harm inferior to "white pollution",get widely attention all aspects..Scraed tyre utilization rate is low,result in environmental pollution and resources wasting.So renew of tyre is considered the best method of environmental protection and recycle resources.Fit the demand energy conservation,emission reduction and economic development.Vehicle get more faster and load more cargo,cause tire wear faster,working life of tire is short, low cost-effectiveness issues.But,dut to lack system study retread theory and technique of retread tyre,retread tyre is consided have quality problem when tyre cause traffic accident.At the same time, retread tyre really have wear quickly,life span shortly,economic benefits low quality problem,maded for some manufacturer.Limit retread tyre use and spread.In order to further help promote the green of the circular economy concept in the automotive and traffic engineering and transport developments in the field.Consider retread tire structure and working conditions,based on mechanice characteristic and finite element theory,establish 3D modol of retread tire. Analyse mechanice properties of tread,tire body and composite materials. Based on simulation results ,analyse stress and strain distribution of tread,difference loading and pressure conditons and counterforce distribution. Contrast performance of general tire and tyre tire on same type.These have important economic signnification and society singnification for retread tyre widespread use.Will retrenchment rubber resource , reduce new tyre volume of produce every year,avoid unnecessary waste.At the same time ,it provide more theoretical refernce,theoretical refernce and practical singificance for retread tyre.
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