Paper Honeycomb as a Core for Structural Sandwich Construction

2009 ◽  
pp. 70-70-9
Author(s):  
Edward W. Kuenzi
Keyword(s):  
Sandwich Construction ◽  
Paper Honeycomb

Mechanical Properties of a Sandwich Construction Material with Paper Honeycomb Core

2011 ◽  
Vol 393-395 ◽  
pp. 170-174
Author(s):  
Chao Han ◽  
Wei Hong Wang ◽  
Hai Yan Tan ◽  
Yan Ming Gao
Keyword(s):  
Mechanical Properties ◽  
Phenolic Resin ◽  
Construction Material ◽  
Sandwich Composite ◽  
Honeycomb Core ◽  
Sandwich Construction ◽  
Side Pressure ◽  
Core Thickness ◽  
Paper Honeycomb ◽  
Surface Sheet

In this paper, sandwich construction was made up of wood surface sheet and paper honeycomb core. Some cores were impregnated with phenolic resin. Compared to untreated honeycomb materials, impregnated honeycomb core greatly improved the mechanical properties of sandwich construction composites. The results of the study showed that, sandwich construction with phenolic resin treated honeycomb core had higher bonding strength than those bonded with isocianate resin. With the increasing of honeycomb core thickness, sandwich composite material decreased in flat pressure strength, side pressure strength, and flexural properties. The results we got in this research would provide a very good reference to the application of sandwich construction with honeycomb core.

Formation Design of Sandwich External Wall Panel in Cold Climate Area Made of Paper Honeycomb Board

2012 ◽  
Vol 174-177 ◽  
pp. 1533-1536
Author(s):  
Hai Rong Yang ◽  
Yan Yuan
Keyword(s):  
Internal Surface ◽  
Cold Climate ◽  
Transmission Factor ◽  
Thermal Calculation ◽  
Wall Panel ◽  
Insulating Layer ◽  
External Wall ◽  
Thermal Insulating ◽  
Paper Honeycomb ◽  
Formation Design

The sandwich external wall panel is made of fireproof Paper Honeycomb Board (PHB) as kernel material, and the external surface is covered by colorful extruded steel board, while the internal surface is coated with the thermal insulating frothing ceramic board or the calcium silicate board, which works as the insulating layer or protecting layer of the panel. Two types of formation design are suggested, i.e., Type-A and Type-B. After corresponding thermal calculation, the maximum thermal transmission factor is determined as 0.424W/(m2• K), which complies with the threshold stipulated in the National Code for external wall panel used in cold climate area. The newly designed wall panel will save 65% of energy when compared with the traditional one made in 1980.

Composite sandwich construction with syntactic foam core

Composites ◽  
1993 ◽  
Vol 24 (5) ◽  
pp. 447-450 ◽  
Author(s):  
C. Hiel ◽  
D. Dittman ◽  
O. Ishai
Keyword(s):  
Syntactic Foam ◽  
Foam Core ◽  
Composite Sandwich ◽  
Sandwich Construction

A Silicon Micromachined Valve Driven by a Bi-Stable Electromagnetic Actuator

1999 ◽  
Author(s):  
S. Böhm ◽  
G. J. Burger ◽  
M. T. Korthorst ◽  
F. Roseboom
Keyword(s):  
Fluid Flow ◽  
Silicone Rubber ◽  
The Other ◽  
Dead Volume ◽  
Electromagnetic Actuator ◽  
Rubber Sheet ◽  
Rubber Layer ◽  
Sandwich Construction ◽  
The One ◽  
Valve Part

Abstract In this contribution a micromachined open/closed valve is presented which is driven by a conventionally manufactured bistable electromagnetic actuator. Basically the micromachined valve part, 7 × 7 × 1 mm3 in dimension, is a sandwich construction of two KOH etched wafers with a specially formulated silicone rubber layer in between. This rubber sheet forms a flexible flow path, which can be open and closed to control a fluid flow. In order to provide a large stroke of about 200 μm, a precision-engineered bi-stable electromagnetic actuator was selected. This actuator consists of a spring-biased armature that can move up and down in a magnetically soft iron housing, incorporating a permanent magnet and a coil. It will be shown that this combination of micromachined and precision-engineered components provides the required low dead volume on the one hand and a large actuator stroke on the other. Another benefit of the application of a bi-stable actuator is the fact that only energy is needed in order to switch between the open and closed state. Moreover, the large stroke makes the valve particle tolerant thus allowing media like cell suspensions and whole blood.

Notes on Sandwich Construction

1949 ◽  
Vol 21 (6) ◽  
pp. 196-196 ◽  
Author(s):  
J. Lockwood Taylor
Keyword(s):  
Sandwich Construction

Preparation and Characterization of Glycyrrhizin-Graphene Hybrid Materials

2012 ◽  
Vol 531 ◽  
pp. 145-148
Author(s):  
Zong Hua Wang ◽  
Yan Li Gao ◽  
Jian Fei Xia ◽  
Fei Fei Zhang ◽  
Yan Zhi Xia ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Hybrid Materials ◽  
Model Compound ◽  
Carbon Electrode ◽  
The Novel ◽  
Electron Transfer Process ◽  
Efficient Energy ◽  
Sandwich Construction ◽  
Photo Induced Electron Transfer

A glycyrrhizin decorated graphene hybrid materials (GL-G) was synthesized, which is a layer-to-layer sandwich construction. The results of characterization indicate that a photo induced electron transfer process or efficient energy transferring along the GL-G interface. Furthermore, the as-made hybrid material was used as a modifier of the glassy carbon electrode to construct a sensor (GL-G/GCE). Using p-nitrophenol as a model compound, the novel sensor demonstrated a highly enhanced electrochemical activity for it. The peak current of p-nitrophenol was significantly improved at the sensor.

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