Investigation of Weibull Statistics in Fracture Analysis of Cast Aluminum | Zendy

Frederic A. Holland | Zendy; E. V. Zaretsky | Zendy

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Investigation of Weibull Statistics in Fracture Analysis of Cast Aluminum

Author(s) -

Frederic A. Holland,

E. V. Zaretsky

Publication year - 1990

Publication title -

journal of mechanical design

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.911

H-Index - 120

eISSN - 1528-9001

pISSN - 1050-0472

DOI - 10.1115/1.2912599

Subject(s) - weibull distribution , fracture (geology) , weibull modulus , pressure vessel , structural engineering , materials science , stress (linguistics) , statistical analysis , shell (structure) , aluminium , engineering , mathematics , statistics , composite material , linguistics , philosophy

The fracture strengths of two large batches of A357-T6 cast aluminum coupon specimens were compared by using two-parameter Weibull analysis. The minimum number of these specimens necessary to find the fracture strength of the material was determined. The applicability of three-parameter Weibull analysis was also investigated. A design methodology based on the combination of elementary stress analysis and Weibull statistical analysis is advanced and applied to the design of a spherical pressure vessel shell. The results from this design methodology are compared with results from the applicable ASME pressure vessel code.

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