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Fracture toughness and surface energies of covalent minerals: theoretical estimates

✍ Scribed by D. Tromans; J.A. Meech

Book ID
113800725
Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
578 KB
Volume
17
Category
Article
ISSN
0892-6875

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## A B S T R A C T In the discussion of the form taken by the expression for the energy for a crack of finite width, an energy term analogous to the plastic work of fracture was introduced. This term is shown to account for the normally observed relation between failure stress and crack length for

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Fracture surface energy, obtained by the work of fracture method using notched beams, provides a simple and direct measure of the "toughness" of hardened cement paste that avoids relying on complex analytical procedures which may not be readily applicable to this type of material. Nevertheless, it i