Accurate prediction of dynamic characteristics is quite critical to understand the strength of layered structures.Nevertheless,the existing five-unknown higher-order theories encounter dif-ficulties to forecast accurately the dynamic response of sandwich
A thick composite anodic oxide film was fabricated in an environmentally friendly malic acid electrolyte containing PolyTetraFluoroEthylene (PTFE) nanoparticles on Ti-10V-2Fe-3A1 alloys.The influence of pulse frequency on the morphology,microstructure and
Fused deposition modeling (FDM) has unique advantages in the rapid prototyping of thermoplastics which have been developed in diverse fields.However,although great efforts have been made to optimize FDM process,the mechanical properties of printed parts a
The maneuvering time on the ground accounts for 10%-30% of their flight time,and it always exceeds 50% for short-haul aircraft when the ground traffic is congested.Aircraft also con-tribute significantly to emissions,fuel burn,and noise when taxiing on th
There exists an increasing need for precision measurement & pointing control and extreme motion stability for current and future space systems,e.g.,Ultra-Performance Spacecraft(UPS).Some notable technologies of realizing Ultra-Pointing (UP) ability have b