We report the energy absorption and piezoresistive self-sensing performance of 3D printed discontinuous carbon fiber (CF)-reinforced polyetheretherketone (PEEK) cellular composites. Experiments conducted on three different 2D lattices with hexagonal, chiral re-entrant topologies same relative density (33%) CF loading (30 wt%) reveal that CF/PEEK hexagonal lattice (HL), due its relatively brittl...

In elastography we are capable of estimating the two in-plane principal strain components following an applied compression, namely the axial and lateral components, along and perpendicular the compressor/transducer axis, re pectively. However, the motion resulting from the compression is threedimensional. Therefore, in order to fully describe the resulting three-dimensional motion we need to al...

We analyze the initiation and propagation of adiabatic shear bands in a tungsten heavy alloy by modeling each constituent as a heat-conducting, microporous, isotropic, elastothermoviscoplastic material. The two constituents are assumed to be perfectly bonded to each other so that the temperature, heat flux, displacements, and surface tractions are continuous across an interface between a tungst...

In order to study the behavior of material under finite deformation at various strain rates, the responses of AZ31 Mg sheet are measured under uniaxial (tension and compression) and multiaxial (simple shear) loadings along rolling direction (RD), 45 to rolling direction (DD), 90 to rolling direction (TD), and normal to the sheet (ND) to large strains. The material exhibits positive strain rate ...

Aluminum cellular structures have been fabricated by combining a two-dimensional [0◦/90◦]2 arrangement of square Al 6061-T6 alloy tubes with orthogonal tubes inserted in the out-of-plane direction. By varying the tube wall thickness, the resulting three-dimensional cellular structures had relative densities between 11 and 43%. The dynamic compressive response of the three-dimensional cellular s...