Overload effect on the fatigue crack propagation of PC/ABS……
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Overload effect on the fatigue crack propagation of PC/ABS……
- 发表刊物：
- Polymer
- 摘要：
- The effect of single overload within an otherwise constant amplitude loading
sequence on the fatigue crack propagation (FCP) behavior of the alloy of
polycarbonate and acrylonitrile–butadiene–styrene (PC/ABS) is experimentally
investigated in this paper. An improved compliance method is employed to measure the
fatigue crack length of the specimen. Optical and scanning electron microscopes are
used to observe the features of crack surface and the process of crack tip
deformation. The overload waveform has slight effect, while the overload ratio has
great effect on the crack growth retardation. A small crack increment is produced
during overloading. The crack growth rate reduces quickly, and then increases
gradually until it reaches the steady crack growth rate level when the loading
recovers to normal constant amplitude fatigue loads. Porous or dimple features
govern the fatigue crack surfaces.
- 合写作者：
- Qin-Zhi Fanga, T.J. Wang
- 卷号：
- Volume 48, Issue 22
- 页面范围：
- 6691-6706
- 是否译文：
- 否
- 发表时间：
- 2007-10-19