Toughening mechanisms in quasi-brittle materials

Article Abstract:

A large-scale fracture process zone, the localization of deformation and strain softening are used in the processing of fracture in cement-based materials. The toughening mechanisms of quasi-brittle materials are studied by theoretically modelling their nonlinear response. Innovative techniques are being developed at the center for advanced cement-based materials in Evanston, Illinois, for the study of fractures in cement-based materials.

Usage, Holographic interferometry

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A micromechanics based representation of combined mode I and II toughness ofbrittle materials and interfaces

Article Abstract:

An innovative numerical expression for the combined toughness modefractures and interface cracks of brittle monolithic materials is presented. The expression contains the dynamical system's fundamental parameters and was derived based on the materials' energy release rate using England's solution. The results of this proposed equation show very good agreement with experimental data.

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A new method developed for brittle and ductile materials to evaluate mechanical properties of a lump specimen in the use of indentation test

Article Abstract:

A new method is developed to evaluate both Young's modulus and the yield strength of either a ductile or brittle material through the uses of the appropriate P-relationships developed in the load and unloading processes. The results of this method are compared to those obtained from the conventional material tests for a lump material.

Materials, Mechanical properties, Elasticity, Elasticity (Mechanics)

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