Results 61 to 70 of about 28,857 (238)
Folding Large Antenna Tape Spring [PDF]
, 2008 This paper presents a novel concept for a low-mass, 50-m^2-deployable, P-band dual polarization antenna that can measure terrestrial biomass levels from a spacecraft in a low Earth orbit.
Howard, P. +3 more
core +2 more sources
Fish Scales: A Multifunctional Biomaterial from Nature
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley +1 more source
Polymer Composites, EarlyView.(top) fabrication and multi‐scale characterizations of self‐reinforced polyethylene composites (PE‐SRCs); (bottom) effects of cooling rates on mechanical properties and crystal morphologies of PE‐SRCs. ABSTRACT This study investigates cooling rate effects on self‐reinforced polyethylene composites (PE‐SRCs), focusing on macroscopic thermal and ...
Yelin Ni +7 more
wiley +1 more source
WTB4: MODAL ANALYSIS OF WIND TURBINE BLADES BEHAVIOR WITH FOUR DISTINCT MATERIALS
Mağallaẗ Al-kūfaẗ Al-handasiyyaẗTo stay up with the constantly changing energy sector, wind turbine lifespan and energy efficiency must be increased. The advantages of the composite-material blade include low weight, high tensile strength, anti-corrosion, fatigue resistance, and ...
Chandran Nagendran +2 more
doaj +1 more source
Polymer International, EarlyView.This study investigates the influence of waste eggshell powder on the water absorption and mechanical properties of jute fiber‐reinforced epoxy composites. Optimal eggshell filler content (2 wt%) significantly enhances composite performance by reducing water absorption and improving mechanical properties.
Safak Yildizhan +4 more
wiley +1 more source
Experimental investigations on nonlinear mechanical behaviors of Kevlar tether
Journal of Engineered Fibers and Fabrics, 2023 A Kevlar tether usually exhibits strong nonlinearity in engineering applications, bringing new challenges to the modeling of tether dynamics. The nonlinear mechanical behaviors, including creep behavior, nonlinear stiffness, hysteresis effect, and ...
Ban Wang, Haozheng Li, Juyong Zhang
doaj +1 more source
Potential contribution of high strength, high modulus aramid fibers to the commercial feasibility of lighter than air craft [PDF]
, 1975 Kevlar aramid fiber, fabric, rope and cable performance are reviewed along with the economics relevant to the material, structural, and reliability aspects of lighter than air ...
Sturgeon, D. L. G., Venkatachalam, T. K.
core +1 more source
Journal of Polymer Science, EarlyView.The low‐velocity impact response of jute, linen, and hemp composites is examined to assess hybridization effects. The study provides insight into the mechanisms governing impact resistance in natural fiber‐reinforced composite systems, highlighting their potential as environmentally benign materials.
Baran Erkek
wiley +1 more source
Exploring the Use and Impact of Composite Materials in Robotics: A Systematic Review
Journal of Field Robotics, EarlyView.ABSTRACT Lightweight and high‐strength materials are important in robotics, as structural design impacts efficiency, payload capacity, and energy consumption. Composite materials, with their superior stiffness‐to‐weight ratios and multifunctional properties, offer clear advantages over conventional metals and polymers.
Doglas Negri +4 more
wiley +1 more source
Development of fiber shields for engine containment [PDF]
, 1977 Tests were conducted in translational launchers and spin pits to generate empirical data used in the design of a Kevlar shield for containing engine burst debris.
Bristow, R. J., Davidson, C. D.
core +1 more source