The Effect of Dilution in Natural and Bio-inspired Staggered Composites

摘要: The staggered structure is prominent in high-performance biological materials such as nacre, spider silk or bone. It consists of stiff and strong elongated inclusions aligned with the direction loading. This leads to useful combinations stiffness, strength toughness, it therefore increasingly mimicked bio-inspired composites. modulus natural composites are typically predicted using shear lag model, where carry tensile stress interfaces stresses. In this work, we have used a simple doctor blade technique make thin film nacre-like materials, which tested tension. Strength increase up 10–15 % volume concentration mineral reinforcement after they degrade. Finite element analyses microstructure over wide range arrangement concentrations revealed new trends can explain experimental results. For example stiffness material degrade higher if tablets lack interface matrix. results show that combination energy absorption be achieved when there an overlap between distance them small transverse direction. identical nacre divided by very organic layer. suggest approaches simultaneously optimize modulus, toughness class