Publisher： John Wiley & Sons Inc
E-ISSN： 1460-2695|38|12|1519-1528
ISSN： 8756-758x
Source： FATIGUE & FRACTURE OF ENGINEERING MATERIALS AND STRUCTURES, Vol.38, Iss.12, 2015-12, pp. : 1519-1528
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
AbstractA recently developed pin‐loaded single‐edge notch bend specimen provides an alternative to the single‐edge notch tension specimen commonly used for small‐crack growth testing. In this paper, weight functions for pin‐loaded single‐edge notch bend specimen are derived by using two methods, the classical analytical weight function method and the newly developed numerical weight function complex variable Taylor series expansion method. Excellent agreement between the two methods is achieved. Based on these weight functions, accurate stress intensity factors for two load cases, that is, pin‐loading and Dugdale loading, which is required for plasticity‐induced crack‐closure analysis based on the strip‐yield model, are determined.
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