This work reports the high-velocity impact response of multiscale anisogrid composite (AGC) panels. The aim of the present study is to evaluate the influence of surface-modified multi-walled carbon nanotubes (S-MWCNTs) at different S-MWCNTs contents (0-0.5 wt.% at an interval of 0.1 wt.%) on the high-velocity impact responses of E-glass/epoxy AGC. Surface modification of MWCNTs is confirmed by ...

Deployable structure composed of smart materials based actuators can reconcile its inherently conflicting requirements of low mass, good shape adaptability, and high load-bearing capability. This work describes the fabrication of deployable structures using smart soft composite actuators combining a soft matrix with variable stiffness properties and hinge-like movement through a rigid skeleton....

different physical or chemical qualities — makes them attractive for manufacturing because they are lightweight and high in strength. However, they also pose unique modeling challenges because of their different constituent materials and orientations. The good news is that you can overcome these challenges using the correct tools. Furthermore, composites are being used reliably to solve real-wo...

This paper presents a study of the folding of a new self-powered, self-latching tube hinge for deployable structures. This hinge is made by cutting three parallel slots in a thinwalled carbon fibre reinforced plastic (CFRP) tube, thus leaving three tape springs connecting the two ends of the tube.

This study aims at better understanding the damage tolerance of stiffened composite panels subjected to fatigue loads in post-buckling regime. Ten single-stringer hat-stiffened specimens with an initial delamination between skin and stringer foot were manufactured, then tested under quasi-static conditions, different load levels ratios. The tests monitored digital image correlation ultrasonic s...

DOD SBIR Phase II Company Name Title Quad Chart NTTC Taxonomy TEXAS RESEARCH INSTITUTE AUSTIN, INC. 9063 Bee Caves Road Austin, TX 78733-6201 Advanced Prognostic Health Management Technologies Using Integrated Detection Techniques with Physics of Failure Mode The proportion of fatigue life that is expended during fatigue crack nucleation is significant in the materials and loading typical of ai...