Results 31 to 40 of about 207,973 (310)

Enhanced the impact resistance by gradient face-sheet design of a sandwich structure

open access: yesJournal of Materials Research and Technology, 2023
Sandwich structure has been designed to reduce the impact damage of the stress waves. However, the existing work focuses on the optimization of sandwich cores while the face-sheet structure is seldom improved.
Jing Wei   +6 more
doaj   +1 more source

Finite Element Analysis of Sandwich Structures [PDF]

open access: yes, 1991
Sandwich construction may be defined as a three-layer type of construction where a relatively weak, low-density core material supports and stabilizes thin layers of high strength face material Its typical features, namely high strength-thin and low strength-thick materials, interfaces, bonding and load transfer suggest that each of the layers will ...
Barros, Joaquim A. O.   +2 more
openaire   +2 more sources

Vibroacoustic optimization of anti-tetrachiral and auxetic hexagonal sandwich panels with gradient geometry [PDF]

open access: yes, 2016
The work describes the vibroacoustic behavior of anti-tetrachiral and auxetic hexagonal gradient sandwich panels using homogenized finite element models to determine the mechanical properties of the auxetic structures, the natural frequencies and ...
Boldrin, Luca   +4 more
core   +2 more sources

The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures

open access: yes, 2012
The resistance of glass-fibre reinforced polymer (GFRP) sandwich panels and laminate tubes to blast in air and underwater environments has been studied.
A Neuberger   +13 more
core   +1 more source

Energy-based fracture characterization of adhesive joints using adhesively bonded short-beam bend test

open access: yesScientific Reports
Mode-I fracture in adhesive joints was characterized using an adhesively bonded short-beam bend (ABSBB) test, which involves a cracked rectangular bonded joint subjected to three-point bending, and a compliance-based beam method (CBBM).
Amir Reza Fatolahi   +2 more
doaj   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

Nonlinear viscoelasticity of freestanding and polymer-anchored vertically aligned carbon nanotube foams [PDF]

open access: yes, 2012
Vertical arrays of carbon nanotubes (VACNTs) show unique mechanical behavior in compression, with a highly nonlinear response similar to that of open cell foams and the ability to recover large deformations.
Abha Misra   +6 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Experimental study of sandwich structures as armour against medium-velocity impacts [PDF]

open access: yes, 2013
An experimental impact study has been conducted on sandwich structures to identify and improve armour solutions for aeronautical applications. The objectives are to find the best configurations, i.e. the non-perforated targets with the minimal weight and
Bouvet, Christophe   +2 more
core   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

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