Results 121 to 130 of about 3,860 (279)

A Review of Mechanical Reinforcement and Piezoresistive Self‐Sensing in Carbon Nanotube Fiber Composites

Polymer Composites, EarlyView.
PSPP‐TRL mapping of CNT‐modified CFRP literature, with four recurring confusions resolved and five scale‐up problems quantified. ABSTRACT Carbon nanotube‐modified fiber composites are often presented as a route to stronger, tougher, and self‐sensing structural materials.
Sanan H. Khan
wiley   +1 more source

Prediction of Local Vibration Analysis for Ship Stiffened Panel Structure Using Artificial Neural Network Algorithm

Vibration
Ship stiffened panels, typically flat plates reinforced with various types of stiffeners, form a substantial part of a ship’s structure and are susceptible to resonance, especially in areas such as the after peak structure, engine room, and accommodation
Mahardika Rizki Pynasti, Chang-Yong Song
doaj   +1 more source

Urinary Collagen Peptides Predict Mortality

PROTEOMICS, EarlyView.
ABSTRACT Organ fibrosis caused by the presence of excessive extracellular matrix (ECM) is related to mortality. Urinary peptide signatures were reported to be predictive of death in SARS‐CoV‐2 and chronic kidney disease. Such signatures were composed for 68% of collagen fragments.
Maria Frantzi, Felix Keller, Agnieszka Latosinska, Joachim Beige, Alexandre Mebazaa, Anaïs Caillard, Dewei An, Paul Perco, Joost P. Schanstra, Lorenzo Catanese, Ralph Wendt, Harald Rupprecht, Jan A. Staessen, Antonia Vlahou, Harald Mischak, Justyna Siwy   +15 more
wiley   +1 more source

Development of a Finite Element Methodology for the Collapse Analysis of Composite Aerospace Structures

, 2007
In this work, an analysis methodology for capturing the critical damage mechanisms leading to collapse in composite stiffened structures is proposed. One aspect of the methodology is a global-local analysis technique that monitors a strength criterion in
Thomson, Rodney, Degenhardt, Richard, Orifici, Adrian   +2 more
core  

Material Softening Effect on Ultimate Strength of Stiffened Aluminium Panels

, 2010
The material strength of aluminum alloys can be seriously deteriorated by the heat-affected zones (HAZ) caused by welding. The reduction of material strength in HAZ may lead to a serious reduction of the aluminium structural strength.
Qiaofeng Chen, Torgeir Moan
core   +1 more source

Concurrent Topology Optimization of Curved-Plate Structures with Double-Sided Stiffeners

Mathematics
Due to their high specific stiffness, particularly in bending, along with their strong design capabilities, stiffened plates have become a prevalent structural solution in aerospace and various other fields.
Kai Xu, Fengtong Zhang, Yunfeng Luo, Quhao Li   +3 more
doaj   +1 more source

Deformation, Creep, and Dynamics in Glassy Ionomers

Journal of Polymer Science, EarlyView.
Ionic architecture tunes the inelastic deformation of glassy ionomers. Simulations show that ionic associations leave the small‐strain elastic baseline nearly unchanged, but strongly reinforce yielding, strain hardening, and creep resistance. Polyampholyte architectures suppress nonaffine mobility and stress‐induced fluidization most effectively by ...
Nazanin Sadeghi, Fardin Khabaz
wiley   +1 more source

Postbuckling and failure of stiffened composite panels under axial compression

, 1998
The postbuckling behavior of graphite-epoxy laminated stiffened panels has been studied analytically and experimentally herein. In this research, the stiffened panels were analyzed using the nonlinear finite element method.
Kim, Chun-Gon, Kong, CW, Lee, IC, Hong, Chang Sun   +3 more
core   +1 more source

Predictability of obstructive sleep apnea with a somesthetic screening score: Development and preliminary validation in a prospective study

Sleep Research, EarlyView.
This prospective study developed a two‐step clinical scoring system for obstructive sleep apnea (OSA) screening based on patients’ somesthetic perception of oropharyngeal airflow. The Intermediate Score (IS ≥ 7.5) achieved 73% sensitivity and 77% specificity (AUC = 0.7754; OR = 8.96).
Cédric Garcion, Alain Piron, Alain Lacroix, Bassam Chakar, Christophe Di Piazza   +4 more
wiley   +1 more source

Experimental study on behavior of GFRP stiffened panels under compression

, 2015
Glass Fiber Reinforced Polymer (GFRP) materials are extensively used in the aerospace and marine industries because of their high strength and stiffness to weight ratio and excellent corrosion resistance.
S, Suriya Prakash, P K, Ganesh Mahidhar, M, Ramji, Kankeri, Pradeep, Kankeri, P   +4 more
core   +1 more source