Results 121 to 130 of about 534,069 (381)

The position effect of structural Eucalyptus round timber on the flexural modulus of elasticity

open access: yes, 2011
Round timber has great use in civil construction, performing the function of beams, columns, foundations, poles for power distribution among others, with the advantage of not being processed, such as lumber. The structural design of round timber requires
A. Christoforo   +5 more
semanticscholar   +1 more source

Recent Advances in Variable‐Stiffness Robotic Systems Enabled by Phase‐Change Materials

open access: yesAdvanced Robotics Research, EarlyView.
Phase‐change materials (PCMs), such as shape memory alloys, hydrogels, shape memory polymers, liquid crystal elastomers, and low‐melting‐point alloys, are driving advancements in stiffness‐tunable robotic systems across a wide range of applications. This review highlights recent progress in PCM‐enabled robotics, focusing on their underlying mechanisms,
Sukrit Gaira   +5 more
wiley   +1 more source

Mechanical Characterization of Nano-SiO₂-Reinforced Epoxy Sandwich Composites With 3D Rayon Graphite Felt Core and Woven Carbon Fiber Face Sheets

open access: yesJournal of Nanotechnology
New epoxy (EP)-based sandwich composites have enhanced mechanical performance and optimized cost-effectiveness, as a result of composites’ increasing popularity.
Zahraa Jalood Nayyef   +5 more
doaj   +1 more source

Inflatable Kirigami Crawlers

open access: yesAdvanced Robotics Research, EarlyView.
Inflatable kirigami crawlers are fabricated from heat‐sealable textiles and achieve motion through cyclic pneumatic actuation. Strategically placed kirigami cuts guide asymmetric deformation, doubling contraction compared to traditional pouches and forming scale‐like surfaces.
Burcu Seyidoğlu   +3 more
wiley   +1 more source

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

open access: yesAdvanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj   +2 more
wiley   +1 more source

Comparison study of some mechanical properties of micro and nano silica EP composites

open access: yesIraqi Journal of Physics, 2012
The effect of micro-and nano silica particles (silica SiO2 (100 μm), Fused silica (12nm)) on some mechanical properties of epoxy resin was investigated (Young's modulus, Flexural strength).
Muhannad M. Abd1
doaj  

Low toxicity high temperature PMR polyimide [PDF]

open access: yes, 1992
In-situ polymerization of monomer reactants (PMR) type polyimides constitute an important class of ultra high performance composite matrix resins. PMR-15 is the best known and most widely used PMR polyimide.
Pater, Ruth H.
core   +1 more source

Biodegradable Zinc‐Based Alloys for Guided Bone Regeneration Membranes: Feasibility, Current Status, and Future Prospects

open access: yesAdvanced Science, EarlyView.
Recent research has shown that biodegradable metals based on zinc (Zn) may be used as guided bone regeneration (GBR) membrane materials. This study examines their viability from the standpoints of material science and biology, reports on the state of research on Zn‐based GBR membranes, and suggests specific development plans based on the potential and ...
Kai Chen   +12 more
wiley   +1 more source

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