Double excitation multi-stability and multi-pulse chaotic vibrations of a bistable asymmetric laminated composite square panels under foundation force

2020 ◽  
Vol 30 (8) ◽  
pp. 083105
Author(s):  
W. Zhang ◽  
W. S. Ma ◽  
Y. F. Zhang ◽  
Y. Z. Liu
Keyword(s):  
Laminated Composite ◽  
Double Excitation ◽  
Chaotic Vibrations

A TEM study of the interface between organic matrix and aragonite in a biological hard tissue, nacre

1992 ◽  
Vol 50 (2) ◽  
pp. 1024-1025
Author(s):  
Jun Liu ◽  
Katie E. Gunnison ◽  
Mehmet Sarikaya ◽  
Ilhan A. Aksay
Keyword(s):  
Mechanical Properties ◽  
Ion Beam ◽  
Laminated Composite ◽  
Organic Matrix ◽  
Pearl Oyster ◽  
Interfacial Structure ◽  
Interfacial Region ◽  
Thin Sections ◽  
Organic Layers ◽  
Transmission Electron

The interfacial structure between the organic and inorganic phases in biological hard tissues plays an important role in controlling the growth and the mechanical properties of these materials. The objective of this work was to investigate these interfaces in nacre by transmission electron microscopy. The nacreous section of several different seashells -- abalone, pearl oyster, and nautilus -- were studied. Nacre is a laminated composite material consisting of CaCO3 platelets (constituting > 90 vol.% of the overall composite) separated by a thin organic matrix. Nacre is of interest to biomimetics because of its highly ordered structure and a good combination of mechanical properties. In this study, electron transparent thin sections were prepared by a low-temperature ion-beam milling procedure and by ultramicrotomy. To reveal structures in the organic layers as well as in the interfacial region, samples were further subjected to chemical fixation and labeling, or chemical etching. All experiments were performed with a Philips 430T TEM/STEM at 300 keV with a liquid Nitrogen sample holder.

Double excitation of Nd3+ pairs in LaF3 by two step and double quantum processes

1984 ◽  
Vol 45 (9) ◽  
pp. 1533-1541 ◽  
Author(s):  
R. Buisson ◽  
J.Q. Liu ◽  
J.C. Vial
Keyword(s):  
Double Quantum ◽  
Quantum Processes ◽  
Double Excitation

Influence of curing stresses on extension-twist coupling in laminated composite strips

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 1714-1720
Author(s):  
Andrew Makeev ◽  
Erian A. Armanios ◽  
David Hooke
Keyword(s):  
Laminated Composite

Machines synchrones à double excitation. Principes et structures

2007 ◽  
Vol 10 (1-2) ◽  
pp. 151-188
Author(s):  
Yacine Amara ◽  
Mohamed Gabsi ◽  
Lionel Vido ◽  
AH Ben Hamed ◽  
Michel Lécrivain
Keyword(s):  
Double Excitation
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