Design self-healing paradigms to enhance or recover the mechanical properties of 3D printed objects

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Three dimensional printing (3DP) will be leading a revolution in manufacturing when it crosses the threshold from a prototyping technology into a production technology. A major drawback that hinders applications of 3D printing is the mechanical strength. 3D printed parts have lower mechanical strength compared to their casted or machined counterparts because the layer-by-layer building manner of 3D printing causes more defects. Thus, it is imperative to develop new technology to conquer the challenges. ****The objective of this study is to develop strategies to enhance the strength of 3D printed parts through various self-healing mechanisms, like the ability of biological systems to heal a wound naturally. It is expected that self-healing assisted 3D printing technology will enable many new possibilities for 3D printing applications.****The proposed project is excellent for HQP training that provides opportunities to the young generation of researchers to learn the leading-edge R&D in the emerging field of additive manufacturing.****