Optimal overlap length in staggered architecture composites under dynamic loading conditions

Multiscale structure of nacre biomaterial: Thermomechanical behavior and wear processes

“…As a result, the complete damage mechanism involves here the fracture of both matrices, explaining the experimental high friction coefficient generally observed in this range of frictional powers (µ = 0.44 ± 0.02) [9]. In addition, these simulations enable us to satisfactorily explain the formation of nanometric wear debris -as observed in Fig.…”

“…1) meaning that particular structures exist at distinct length scales. Thus, Dutta et al [9] first reported the importance of length scales in maximizing both load-transfer capability and resistance to crack initiation in composites both under static and impact rates of loading.…”

Continuum modeling of the cohesive energy for the interfaces between films, spheres, coats and substrates

“…(7) and (18) is the same with Eq. (6). It indicates that the cohesive energy is the same between a half infinite thickness film and a finite thickness coat when r 1 = 1.…”

“…Shao et al [5] explained the range of the platelets thickness by a microstructure-based fracture mechanics model. Dutta et al [6] studied the mechanical behavior of nacre under impact loading. However, the reason why the organic interlayer thickness is in the range of 10-45 nm still not clear.…”

Design bio-inspired composite structure subjected to blast loading

“…To this end, Wei et al (2012) and Dutta et al (2013) developed analytical models of a rectangular unit cell cut out from the nacreous structure, to quantify the optimal overlapping length of nacre under planar static and dynamic tensile loading, respectively. By maximising the strain energy density of the unit cell and minimising the shear stress in the matrix, they we able to obtain optimal overlapping lengths that were similar to that found in nacre.…”