精品文档---下载后可任意编辑ABS 环形试样疲劳开裂行为的讨论的开题报告摘要：本文针对 ABS 环形试样的疲劳开裂行为进行了讨论，通过制备环形试样并进行拉伸疲劳试验，探究了疲劳循环数、应力幅值和温度等因素对 ABS 环形试样疲劳开裂的影响。实验结果表明，疲劳循环数对 ABS 环形试样的疲劳寿命有明显的影响，当疲劳循环数增加时，环形试样的疲劳寿命会显著缩短；应力幅值是影响疲劳开裂的重要因素之一，越大的应力幅值会导致 ABS 环形试样更快地发生疲劳开裂；温度对 ABS 环形试样疲劳开裂也有影响，当温度增加时，环形试样的疲劳寿命会减少。通过本讨论，我们可以更加深化地了解 ABS 材料的疲劳开裂行为及其影响因素，为ABS 材料在工程应用中的优化设计提供参考和指导。关键词：ABS 材料；环形试样；疲劳；开裂行为；影响因素Abstract:This paper studies the fatigue crack behavior of ABS ring specimens. By preparing ring specimens and conducting tensile fatigue tests, the influences of factors such as fatigue cycles, stress amplitude, and temperature on the fatigue crack of ABS ring specimens are explored. The experimental results show that the fatigue cycle has a significant effect on the fatigue life of ABS ring specimens. When the fatigue cycle increases, the fatigue life of the ring specimen will significantly shorten; stress amplitude is one of the important factors affecting fatigue crack, and larger stress amplitude will lead to faster fatigue crack of ABS ring specimens; temperature also has an influence on the fatigue crack of ABS ring specimens, and the fatigue life of the ring specimen will decrease as the temperature increases.Through this study, we can have a deeper understanding of the fatigue crack behavior and influencing factors of ABS materials, providing a reference and guidance for the optimization design of ABS materials in engineering applications.Keywords: ABS material; ring specimen; fatigue; crack behavior; influencing factors.
