Williams expansion utilized for assessment of crack behaviour under mixed‐mode loading in alkali‐activated fine‐grained composite
Source abstract
Abstract
Abstract The paper concerns an experimental study on the crack deflection angle in a semi‐circular disc made of an alkali‐activated fine‐grained composite under mixed‐mode conditions. This study is supplemented by an extensive numerical analysis that calculates the crack deflection angles via generalized (multi‐parameter) fracture criteria. It is proved that the use of higher‐order terms of the Williams expansion for the approximation of the crack‐tip stress field leads to more accurate results. The influence of various parameters on the crack deflection angle is discussed, and recommendations on their proper choice are presented. The conclusions help in describing the crack behaviour under mixed‐mode conditions more accurately.
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Research context
OpenAlex topics: Fatigue and fracture mechanics · Structural Behavior of Reinforced Concrete · Numerical methods in engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Civil Engineering, Institute of Structural Mechanics Brno University of Technology Brno Czech Republic
Czech Academy of Sciences Institute of Physics of Materials Brno Czech Republic
Faculty of Civil Engineering, Institute of Building Testing Brno University of Technology Brno Czech Republic
Funding
Grantová Agentura České Republiky
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