Nacre-like structure from reinforced polymersStrong, tough but light is the desired combination of properties for numerous applications but one that is rarely found in artificial materials. Now researchers at ETH Zurich have developed a new ......
1c), the nacre-like structure may not always be a template for impact-resistant structures. Besides the above single bioinspired architecture design, the hybrid design combing multiple bioinspired architectures also attracts intense interest in achieving enhanced impact resistance, for example, the ...
Beam theory of nacre-like structure For nacre-like structures under bending deformation, there are two coupled deformations, i.e., the local tension-shear coupled deformation under bending configuration and global bending-shear coupled deformation of cross-section. In the previous section, the solution...
Inspired by nacre's sophisticated "brick-and-mortar" structure, multilayered polyether amine (PEA)/graphene oxide (GO) hybrid building blocks were incorporated onto the surface of carbon fiber via Layer-by-Layer (LbL) assembly to strengthen and toughen the interphase of composites. Impressive ...
Taking a leaf out of Nature's book, the use of nacre-like structure in the materials synthesis has generated notable successes in creating novel structural composites but has yielded few practical advances in metals. Here we have successfully architected the intricate hierarchical microstructure, the ...
“brick-and-mortar”) structure, which demonstrates an improved mechanical stability against grain thickening, thus offering substantial barriers for crack initiation. An ultrahigh frequency of crack deflection of fatigue cracks subsequently enables this layer to exhibit an enhanced resistance against fatigue...
First, we investigate the toughening of a simple layered structure, where the surfing boundary condition is imposed to suppress the crack deflection. We compute the maximum energy release rate using the J-integral technique to find out that the effective fracture toughness is much less than the ...
This paper investigates the kinematic behaviour of an 'engineered' nacre-like structure within a high strain-rate environment. A finite-element (FE) model... C Knipprath,IP Bond,RS Trask - 《Journal of the Royal Society Interface》 被引量: 15发表: 2012年 Nacre-like ceramic/polymer laminated...
Nanofibers and nanosheets form a typical brick-and-mortar structure, which exhibits mechanical robustness compared with other reported materials. Additionally, the heterostructure contributes to both restraining concentration polarization and generating spontaneous potential gradient. Thus, based on the confined ...
In general, the typical architecture of nacre has been known as the “brick-and-mortar” (BM) structure, the “brick” is the major load-bearing constituent which provides strength, while the “mortar” acts as the lubricant for bricks. In the case of appropriate interface [7], the ...