Shear dominated failure in the 'hat' specimen from the 2013 Sandia Fracture Challenge.

Technical Report · Tue Nov 01 04:00:00 EDT 2016

DOI:https://doi.org/10.2172/1333382· OSTI ID:1333382

Corona, Edmundo ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

The objective of this memo is to present a brief report of the progress achieved during FY2016 on the investigation of ductile failure in the 2013 Sandia Fracture Challenge specimen. It is a follow-up to the results of an experimental investigation presented in [1]. The experi- mental investigation was conducted with both the original steel A286 material used in the fracture challenge as well as with Al 7075-T651. The new results include further microscopy work for the steel A286 specimens, failure criterion veri cation for both materials and the implementation of a nite element model containing `material imperfections' to simulate the limit load in the response of the steel A286 specimens. Funding used to conduct the work presented here was provided by the ASC V&V program on validation of shear failure (Benjamin Reedlunn, PI) and from Sandia's LDRD program. This memo assumes that the reader is familiar with the material in [1].

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1333382
• Report Number(s): SAND--2016-11740R; 649266
• Country of Publication: United States
• Language: English

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36 MATERIALS SCIENCE