A Test Specimen with Constant Stress Intensity Factor

HL Groth

doi:10.1520/STP30330S

SYMPOSIA PAPER Published: 01 January 1988

STP30330S

A Test Specimen with Constant Stress Intensity Factor

Source

A test specimen was developed that gave a constant value of the stress intensity factor in Mode I under prescribed displacement loading conditions. The test specimen was a double contoured cantilever beam specimen, derived from beam theory. The stiffnesses needed in the analysis and the stiffness as function of crack length were determined by use of the finite element method. For the final shape the valid range of crack extension was established. It is believed that the specimen could be useful for many applications where a constant stress intensity factor is needed, such as viscoelastic crack growth in an adhesive layer.

Author Information

Groth, HL

Department of Aeronautical Structures and Materials, The Royal Institute of Technology, Stockholm, Sweden

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Details

Developed by Committee: D14

Pages: 98–104

DOI: 10.1520/STP30330S

ISBN-EB: 978-0-8031-5051-5

ISBN-13: 978-0-8031-0993-3

A Test Specimen with Constant Stress Intensity Factor

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