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| 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 |
| Received:May 07, 2021 Revised:May 07, 2021 |
| DOI：10.12135/j.issn.1006-8171.2021.10.0654 |
| 中文关键词: 载重轮胎；花纹沟；疲劳裂纹；试样制备；测试方法 |
| 英文关键词: truck and bus tire；pattern groove；fatigue crack；sample preparation；test method |
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| Author Name | Affiliation | E-mail | | MAO Jianqing* | Zhongce Rubber Group Co.，Ltd | maojianqing@163.com | | CHEN Shuiliang | Hangzhou Chaoyang Rubber Co.，Ltd | | | HONG Zhiyuang | Hangzhou Chaoyang Rubber Co.，Ltd | | | HE Yan | Beijing Research and Design Institute of Rubber Industry Co.，Ltd | |
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| 中文摘要: |
| 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，U形花纹沟试样的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。 |
| 英文摘要: |
| 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 pattern groove width，the fatigue bending times of the two types of pattern groove samples were increased，the increase 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 obviously with the stress concentration.By changing the angle and width of the finished tire pattern groove，the evaluation effect of fatigue test performance was obvious，and the evaluation effect of pattern groove crack was more prominent. |
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