Results 111 to 120 of about 207,973 (310)

Buckling Imperfection Sensitivity of Conical Sandwich Composite Structures for Launch-Vehicles [PDF]

Structural stability can be an important consideration in the design of large composite shell structures and therefore it is important to understand the buckling response of such structures. It is well known that geometric imperfections can significantly
Li, Yingyong, Satyanarayana, Arunkumar, Schultz, Marc R., Sleight, David W.   +3 more
core   +1 more source

Compression After Impact Testing of Sandwich Structures Using the Four Point Bend Test [PDF]

, 2008
For many composite laminated structures, the design is driven by data obtained from Compression after Impact (CAI) testing. There currently is no standard for CAI testing of sandwich structures although there is one for solid laminates of a certain ...
Gregory, Elizabeth, Jackson, Justin, Kenworthy, Devon, Nettles, Alan T.   +3 more
core   +1 more source

Purcell‐Enhanced Spectrally Precise Emission in Dual‐Microcavity Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Spectrally precise emission from broadband organic light‐emitting diodes is realized via a dual‐microcavity strategy. This architecture achieves narrowband emission (full width at half maximum, FWHM = 21 nm) with ultrapure color approaching BT.2020 by enhancing the Purcell effect via coupling of excitons with dual‐microcavity resonance.
Jun Yong Kim, Sang Youn Lee, Kwan Hyun Cho, Yun Seon Do   +3 more
wiley   +1 more source

Light weight fire resistant graphite composites [PDF]

, 1986
Composite structures with a honeycomb core and characterized by lightweight and excellent fire resistance are provided. These sandwich structures employ facesheets made up of bismaleimide-vinyl styrylpyridine copolymers with fiber reinforcement such as ...
Hsu, M. T. S., Kourtides, D. A., Parker, J. A.   +2 more
core   +1 more source

Stable and Metastable Structures of Cobalt on Cu(001): An ab initio Study

, 1999
We report results of density-functional theory calculations on the structural, magnetic, and electronic properties of (1x1)-structures of Co on Cu(001) for coverages up to two monolayers.
A. Clarke, A. Saúl, A.K. Schmid, A.K. Schmid, B. Kohler, F. Nouvertné, F. Nouvertné, G. Binasch, G. Boisvert, G.A. Haas, G.G. Tibbets, H. Li, H.J. Monkhorst, H.L. Davis, J. Fassbender, J. Shen, J.P. Perdew, J.P. Perdew, J.R. Cerda, M. Methfessel, M. Methfessel, M. Scheffler, M.Ø. Pedersen, O. Erikson, P. Alippi, P. Blaha, P. Blaha, P. Bruno, P. Bruno, P. Srivastava, P.O. Gartland, Q.T. Jiang, R. Pentcheva, R. Wu, S. Blügel, U. Bovensiepen, W. Clemens   +36 more
core   +1 more source

Multimodal Structural Color Graphics Based on Colloidal Photonic Microdome Arrays

Advanced Functional Materials, EarlyView.
A hybrid photonic system combining colloidal crystals and microscale domes is designed to achieve four switchable optical states via the interplay of Bragg reflection and TIR interference. The graphics composed of the photonic microdome arrays provide tunable, angle‐sensitive structural coloration and concealed‐to‐revealed transitions, offering a ...
Jun‐Gu Kang, Hwan‐Young Lee, Chaerim Son, Hyeonbin Jo, Shin‐Hyun Kim   +4 more
wiley   +1 more source

Sound transmission loss analysis of lattice sandwich structures based on NIAH

Jixie qiangdu
Lattice sandwich structures possess excellent mechanical properties such as high specific strength, impact resistance,and noise reduction, which are widely used in construction, vehicles and ships, aerospace,and other fields.
HOU Zhonghua, LIU Bingxin, ZHANG Sijia, WANG Wensheng   +3 more
doaj  

Comparative study on the dynamic response of an out-of-plane gradient bionic sandwich circular plate under two types of impact loading

Frontiers in Materials
Out-of-face gradient sandwich structures have been widely studied for their excellent impact resistance. One uniform and two out-of-plane gradient cores are proposed based on the bionic structure of Royal Water Lily, and the midspan deflection of the ...
Hairen Wang, Jianyin Lei, Junfei Chen, Yugen Li, Jun Peng, Xiaoli Ma   +5 more
doaj   +1 more source

Experimental study on mechanical properties of aircraft honeycomb sandwich structures

EPJ Web of Conferences, 2010
Mechanical behaviour of sandwich panels under different conditions have been exprimentally studied in this research to increase the knowledge of aircraft sandwich panel structures and facilitate design criteria for aircraft structures.
Talebi Mazraehshahi H., Zakeri A.A.
doaj   +1 more source

Using the Photostationary State of Arylazopyrazoles to Control Phase Transitions of Liquid Crystals

Advanced Functional Materials, EarlyView.
A series of new arylazopyrazole photoswitches is designed as dopants for liquid crystalline materials. Unprecedented, the distribution of photoisomers at the photostationary state upon irradiation with light of specific wavelengths (365, 460, 520 nm) is used to control the liquid crystalline phase transitions under isothermal conditions, including ...
Tobias Thiele, Kristina Hrybenko, Christoph Wölper, Michael Giese   +3 more
wiley   +1 more source