Journal Published Online: 01 January 1978
Volume 6, Issue 1

Load-Displacement Measurement and Work Determination in Three-Point Bend Tests of Notched or Precracked Specimens



Suggestions for testing of notched or cracked three-point bend specimens are presented that (1) correct displacement measurement errors resulting from misalignment between the load applicator and specimen; (2) account for coincidental strains not associated with the work of crack extension; (3) simplify record analysis and processing; and (4) extend displacement gage range without sacrifice of sensitivity or accuracy. These testing details are particularly applicable to procedures in which the crack extension force J1 is determined from the work done on the specimen.

Author Information

Buzzard, RJ
Lewis Research Center NASA, Cleveland, Ohio
Fisher, DM
Lewis Research Center NASA, Cleveland, Ohio
Pages: 5
Price: $25.00
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Stock #: JTE10916J
ISSN: 0090-3973
DOI: 10.1520/JTE10916J