Fracture propagation in concrete is dominated by slow crack growth and the nonlinear process zone in front of the crack tip. As the size of this fracture process zone may be relatively large and dependent on aggregate-size and specimen-geometry, the standard method for determining K//I//C for metallic materials cannot accurately predict fracture toughness without any modification. A theoretical model to predict the extent of the nonlinear process zone and a method to include the effects of crack-tip-nonlinearity in predicting fracture resistance of concrete are described.
|Original language||English (US)|
|Title of host publication||Transactions of the International Conference on Structural Mechanics in Reactor Technology|
|Publisher||r Commission of the European Communities (EUR-8596) by North-Holland, 5. 1|
|State||Published - Dec 1 1983|
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