Results 41 to 50 of about 28,857 (238)

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Matrix cracking in polymeric composites laminates: Modelling and experiments [PDF]

, 2007
Composites ability to retain functionality in the presence of damage is a crucial safety and economic issue. Generally the first damage mode in composite laminates is matrix cracking, which affects the mechanical properties of the structure long before ...
Galiotis, C., Kashtalyan, M., Katerelos, D.T.G., Soutis, C.   +3 more
core   +4 more sources

Laser Cutting of Kevlar Laminates, [PDF]

, 1977
An investigation has been conducted of the use of laser energy for cutting contours, diameters, and holes in flat and shaped Kevlar 49 fiber-reinforced epoxy laminates as an alternate to conventional machining. The investigation has shown that flat laminates 6.35 mm thick may be cut without backup by using a high-powered (1000-watt) continuous wave CO ...
openaire   +2 more sources

Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs

Advanced Science, EarlyView.
Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng, Shaokun Wang, Jiehan Zou, Guiwen Shi, Zhongxue Gan, I‐Ming Chen, Guo‐Niu Zhu   +6 more
wiley   +1 more source

Solid particle erosion behavior of Graphene/SiC/Al2O3/TiO2 coated Kevlar/Epoxy composite materials

Results in Chemistry
In light of the finding of a research-based solution for erosion with fabrication and test ceramic fillers incorporating composite material, this research used the electro-spun method to cover fibre mats with nanofiller materials such as graphene, SiC ...
Uttam Kumar Debnath, Mohammad Asaduzzaman Chowdhury, Nayem Hossain, Mohammad Aminul Islam, Dewan Muhammad Nuruzzaman   +4 more
doaj   +1 more source

Titanyum Karbür (TiC) Takviyeli Epoksi ile Güçlendirilmiş Hibrit Kompozitlerin Çarpma Davranışının Deneysel ve Sayısal İncelenmesi

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020
Bu çalışmada, titanyum karbür (TiC)ile güçlendirilmiş ağırlıkça katkısız, %1, %3 ve %5 oranında TiC içeren epoksireçineli cam/kevlar kumaş hibrit kompozit plakalar hazırlanmıştır.
Mustafa Reşit Usal, Mehmet Fahri Saraç, Mustafa Taşlıdere   +2 more
doaj   +1 more source

Experimental investigation of Ballistic capabilities in Carbon-Kevlar composites: Effects of weight and layer variations against 9 mm projectiles

Results in Materials, 2023
The study aimed to investigate the ballistic capabilities of carbon-Kevlar composites, particularly for the design of ballistic vests against pistol bullets. carbon-Kevlar is known for its high strength, lightweight nature, and affordability, making it a
Tannachart Wantang, Manop Pipathattakul, Fasai Wiwatwongwana   +2 more
doaj   +1 more source

Multidimensional and Multifunctional Laser‐Induced Graphene (LIG) for Point‐of‐Care and Wearable Biosensing, Theranostics, and Bioactive Interfaces Toward Personalized Healthcare and Regenerative Medicine

Advanced Science, EarlyView.
Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang, Yurou Yuan, Xiaohong Ding, Wing Cheung Mak   +3 more
wiley   +1 more source

Optimum design of brake friction material using hybrid entropy-GRA approach

MATEC Web of Conferences, 2016
The effect of Kevlar and natural fibres on the performance of brake friction materials was evaluated. Four friction material specimens were developed by varying the proportion of Kevlar and natural fibres.
Kumar Naresh, Singh Tej, Rajoria R.S., Patnaik Amar   +3 more
doaj   +1 more source

Production and Characterization of Carbon-Kevlar-Aramid Reinforced Layer Composites with VARTM Method

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
In this study, laminated composite materials areproduced by Vacuum Assisted Resin Transfer Molding (VARTM) Method. Threedifferent reinforcement materials (carbon, kevlar and aramid) are used in theproduction phase.
Engin Şahin, Yahya Taşgın
doaj   +1 more source