PHASE-FIELD MODELING OF CRACKING IN ADDITIVELY MANUFACTURED CONCRETE

Date

2023-8-23

Author

Kaynar, Ozan Özgür

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This work is concerned with the computational modeling of additively manufactured concrete. Additive manufacturing involves an automated process where the product is produced layer-by-layer. One of the key advantages of this technique compared to traditional construction methods is that concrete members with complex shapes and structures can be produced easily. These tailored structures can enhance the mechanical properties of concrete such as strength and toughness considerably. Another key advantage of additive manufacturing is the high speed of construction. In this study, a new computational approach furnished with the phase-field fracture model is developed to analyze and predict the mechanical behavior of additively manufactured concrete undergoing cracking under different loading conditions. Moreover, the proposed model, validated using experimental results in the literature, is used to investigate the effect of different but scarcely used printing patterns on the cracking behavior of concrete members, particularly governed by the properties of layers and interfaces. The predictive and versatile capacity of the proposed approach is further validated through the application of the developed model to masonry walls.

Subject Keywords

Additively Manufactured Concrete, Layered Structures, Cracking, Phase-Field Model

URI

https://hdl.handle.net/11511/105294

Collections

Graduate School of Natural and Applied Sciences, Thesis