Mr Yazhuo Liu's paper appears in Extreme Mechanics Letters


Recently, Yazhuo Liu, an undergraduate in the HONG Group, published a paper entitled “A Clean Cut” on Extreme Mechanics Letters. The work was done in collaborated with Prof. Chung-Yuen Herbert Hui at Cornell University.

The article studies the important effect of slicing on the cutting of soft materials. A friction-based mechanism is proposed –the friction force is always opposite to the direction of relative sliding, sliding along the blade can greatly reduce the friction force component in the direction perpendicular to the blade, which otherwise hinders effective cutting – and is further verified by numerical calculations. This discovery can not only explain phenomena in daily life, but also provide a theoretical basis for possible applications such as soft material processing and precision surgery.