评价载重轮胎花纹沟底耐疲劳裂纹性能的一种试样制备及测试方法  

A Sample Preparation and Test Method for Evaluating Fatigue Crack Resistance of Tread Pattern Groove Bottom of Truck and Bus Tire

作　　者：毛建清[1] 陈水良[2] 洪志远 和燕 MAO Jianqing;CHEN Shuiliang;HONG Zhiyuan;HE Yan(Zhongce Rubber Group Co.,Ltd,Hangzhou 310018,China;Hangzhou Chaoyang Rubber Co.,Ltd,Hangzhou 310018,China;Beijing Research and Design Institute of Rubber Industry Co.,Ltd,Beijing 100143)

机构地区：[1]中策橡胶集团有限公司,浙江杭州310018 [2]杭州朝阳橡胶有限公司,浙江杭州310018 [3]北京橡胶工业研究设计院有限公司,北京100143

出　　处：《轮胎工业》2021年第10期654-657,共4页Tire Industry

摘　　要：提出一种评价轮胎花纹沟底耐疲劳裂纹性能的试样制备及测试方法,研究不同形状花纹沟沟底耐疲劳裂纹性能。结果表明:随着花纹沟宽度的增大,两种形式花纹沟试样耐疲劳屈挠次数均提升,U形花纹沟试样提升更明显,其耐疲劳性能明显优于V形花纹沟试样;随着V形花纹沟宽度减小,其物理性能随着应力集中导致裂纹性能明显降低;改变成品轮胎花纹沟的角度和宽度,其疲劳测试性能评价效果明显,对花纹沟裂口评价效果更为突出。A sample preparation and test method for evaluating the fatigue crack resistance of tire tread pattern groove bottom was proposed to study the fatigue crack resistance of tread pattern groove bottom with different shapes.The results showed that with the increase of the pattern groove width,the fatigue flexing resistance of both U-shape and V-shape types of pattern groove samples were improved,the improvement of U-shaped pattern groove samples was more obvious,and the fatigue resistance of U-shaped pattern groove samples was obviously better than that of V-shaped pattern groove samples.With the decrease of the width of V-shaped pattern groove,its physical properties decreased significantly due to the stress concentration.By changing the angle and width of the finished tire pattern groove,the evaluation of the fatigue test performance was effective,and the evaluation effect of the pattern groove crack was more prominent.

关 键 词：载重轮胎 花纹沟 疲劳裂纹 试样制备 测试方法 

分 类 号：TQ336.1[化学工程—橡胶工业] TQ330.7