Overload effect on the fatigue crack propagation of PC/ABS……

Release Time:2025-04-30  Hits:

• Date:2025-04-30
• Title of Paper:Overload effect on the fatigue crack propagation of PC/ABS……
• Journal:Polymer
• Summary: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.
• Co-author:Qin-Zhi Fanga, T.J. Wang
• Volume:Volume 48, Issue 22
• Page Number:6691-6706
• Translation or Not:No
• Date of Publication:2007-10-19