Size-Effect Testing of Cohesive Fracture Parameters and Nonuniqueness of Work-of-Fracture Method
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چکیده
منابع مشابه
Size-Effect Testing of Cohesive Fracture Parameters and Nonuniqueness of Work-of-Fracture Method
The cohesive crack model has been widely accepted as the best compromise for the analysis of fracture of concrete and other quasibrittle materials. The softening stress-separation law of this model is now believed to be best described as a bilinear curve characterized by four parameters: the initial and total fracture energies Gf and GF , the tensile strength f 0t , and the knee-point ordinate ...
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15 صفحه اولCohesive crack, size effect, crack band and work-of-fracture models compared to comprehensive concrete fracture tests
The simplest form of a sufficiently realistic description of the fracture of concrete as well as some other quasibrittle materials is a bilinear softening stress-separation law (or an analogous bilinear law for a crack band). This law is characterized by four independent material parameters: the tensile strength, f ′ t , the stress σk at the change of slope, and two independent fracture energie...
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ژورنال
عنوان ژورنال: Journal of Engineering Mechanics
سال: 2011
ISSN: 0733-9399,1943-7889
DOI: 10.1061/(asce)em.1943-7889.0000254