The constraint factor and its size dependence in DC(T) fracture specimens
DOI:
https://doi.org/10.3989/revmetalm.2002.v38.i5.415Keywords:
Elastic-plastic fracture, Constraint, Common format, Fracture toughness,Abstract
The Common Format Equation constraint factor, Ω*, introduced by Donoso and Landes, is analyzed in terms of its dependence on crack length and thickness, in disk-shaped compact specimens, DC(T). Numerical analysis of the load-displacement behavior of blunt-notched DC(T) specimens, and experimental evaluation of pre-cracked DC(T) specimens of various thickness, allows one to obtain the values of Ω* in terms of the thickness-to-ligament ratio, B/b, as a measure of the degree of size-induced constraint in this geometry.
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Published
2002-10-30
How to Cite
Donoso, J. R., Cancino, C., & Muehlich, U. (2002). The constraint factor and its size dependence in DC(T) fracture specimens. Revista De Metalurgia, 38(5), 326–333. https://doi.org/10.3989/revmetalm.2002.v38.i5.415
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