A Weibull analysis of center cracked panel crack growth data of a 0.400.50 carbon steel

✍ Scribed by R.K. Reeves; D.W. Hoeppner

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 436 KB
• Volume: 10
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(78)90066-8

✦ Synopsis

A four parameter Weibull survivorship equation is applied in the analysis of fatigue-crack growth data of two microstructures of a 0.40]0.50 carbon steel. A new method of optimizing variables in conjunction with standard linear regression analysis is discussed in terms of fitting curves to crack growth rate data of center cracked panels. A simpler form of this method is applied in the analysis of compliance data for the same center cracked panels. It is determined that these curve fitting methods provide curves extremely representative of the data. Thus, utilization of these techniques will provide a more accurate method of fatigue life prediction from fatigue-crack growth data.