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.