Journal of Failure Analysis and Prevention

, Volume 17, Issue 4, pp 802–811 | Cite as

A Review of Fatigue Failure Properties from Edge Defects

Technical Article---Peer-Reviewed
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Abstract

The cut-edge surface and internal properties formed during component manufacturing are critical to the durability of steel structures with exposed cut-edges used in automotive and yellow goods vehicle applications. The cut-edge quality is becoming increasingly important to satisfy the escalating demands for component performance and durability. The significance of this is emphasized with the introduction of advanced high-strength steel grades, which have an increased sensitivity to fatigue cracks initiating from cut-edges. This review is based on the premise that the cut-edge quality is principally based on steel grade, cutting method and the cutting process parameters, which influence the resulting cut-edge quality properties. Further to this, the effect of cutting on fatigue performance is essential to the design and manufacture of durable vehicle components. The importance of the edges in structural durability lies in the fact that these regions act as the initiation sites for fatigue cracks, which may lead to structural failure of the application under continuous cyclical loading. The emphasis of the project has been on establishing an accurate relationship between cut-edge type, cutting process parameters, and the cut-edge fatigue performance.

Keywords

Fatigue Cut-edges Failure analysis Edge defects 

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Copyright information

© ASM International 2017

Authors and Affiliations

  1. 1.Creation Engineering GroupLlynfi Enterprise CentreMaestegUK

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