Evaluation of the compact shear specimen for mixed mode fracture studies

Journal Article · Sat Oct 01 04:00:00 EDT 1983 · J. Eng. Mater. Technol.; (United States)

DOI:https://doi.org/10.1115/1.3225657· OSTI ID:6685910

Riddle, R A; Streit, R D; Finnie, I

A compact shear specimen configuration, consisting of three legs with the outer two loaded axially in a direction opposite to the inner one, has been used for several mixed-mode fracture studies. From a detailed computer analysis of this specimen, it is shown that the loading boundary conditions play an extremely important role in determining the state of stress at the crack tip. By simply changing the flexibility of the loading fixture, the specimen can be subjected to a range of mixed mode conditions from almost all Mode I to virtually pure Mode II. Data of other researchers are reviewed in light of this finding. It is shown that by applying loads obliquely to the outer legs pure Mode I loading may also be obtained with this specimen.

• Research Organization: Univ. of California, Berkeley
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6685910
• Journal Information: J. Eng. Mater. Technol.; (United States), Journal Name: J. Eng. Mater. Technol.; (United States) Vol. 105; ISSN JEMTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
EVALUATION
FRACTURE MECHANICS
FRACTURE PROPERTIES
MECHANICAL PROPERTIES
MECHANICS
SHEAR
STRESS INTENSITY FACTORS