Numerical Prediction Of The Effects Of Miniature Channel Shaped Scratches On The Fracture Behaviour Of Wires For Civil Engineering Applications Using Finite Element Analysis

Archives of civil engineering

K.K. Adewole School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle upon Tyne, United Kingdom, NE1 7RUEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  S.J. Bull School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle upon Tyne, United Kingdom, NE1 7RUEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle upon Tyne, United Kingdom, NE1 7RU

关键词: Keywords: Wires;    Failure analysis;    Finite element;    Fracture behaviour;    Scratches;   

DOI  :  10.2478/ace-2014-0012

学科分类：建筑学

来源: Polska Akademia Nauk * Instytut Podstawowych Problemow Techniki / Polish Academy of Sciences, Institute of Fundamental Technological Research

【 摘 要 】

The effects of the miniature channel-shaped scratches not detectable by the present inline electromagnetic defect detection system employed for wires’ surface defect detection on the fracture behaviour of the wires for civil engineering applications were investigated numerically. Finite element analysis revealed that both miniature channel-shaped across-the-thickness and across-the-width scratches change the fracture behaviour of the wires in terms of the fracture initiation locations and fracture process sequence. However, miniature across-the-thickness scratches does not affect the fracture shape of the wire while miniature across-the-width scratches changed the wires’ cup and cone fracture to a fracture shape with a predominantly flat fracture. These results provide an understanding of the fracture behaviour of wires with miniature scratches and serve as an alternative or a complimentary tools to experimental or fractographic failure analysis of wires with miniatures scratches which are difficult to carry out in the laboratory due to the sizes of the scratches.

【 授权许可】

Unknown