A concise review of recent studies about the fracture assessments of elastic brittle solid materials containing V-notches is presented.In this preliminary and brief survey,elastic stress distributions in V-notched solids are discussed first.The concept of notch stress intensity factor is introduced.Combine the digital image correlation method with numerical computation techniques to analyze the stress distribution near the notches.Fracture criteria such as strain energy density,J-integral,theory of critical distance are used.However,various new materials are developed in different engineering fields,thus,the establishment of reliable and accurate material strength theory or failure criterion is imperative.Therefore,predicting fracture for various modem materials would require more experiments to infer material dependent parameters in the local fracture model.
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