Experimental Investigation on the Propagation Process of Combustion Wave in the Annular Channel Filled with Acetylene-Air/Oxygen Mixture

2021 ◽  
Author(s):  
Jingchun Gai ◽  
Hua Qiu ◽  
Cha Xiong ◽  
Zuohua Huang
Keyword(s):  
Experimental Investigation ◽  
Combustion Wave ◽  
Annular Channel ◽  
Oxygen Mixture ◽  
Propagation Process

Experimental investigation of gravitational gas separation in an inclined annular channel

2012 ◽  
Vol 39 ◽  
pp. 17-25 ◽  
Author(s):  
Luis Enrique Ortiz Vidal ◽  
Oscar Mauricio Hernandez Rodriguez ◽  
Valdir Estevam ◽  
Divonsir Lopes
Keyword(s):  
Experimental Investigation ◽  
Gas Separation ◽  
Annular Channel

scholarly journals Experimental investigation of CFRP fracture toughness by delamination type

2021 ◽  
Vol 20 (1) ◽  
pp. 97-108
Author(s):  
S. A. Chernyakin
Keyword(s):  
Fracture Toughness ◽  
Experimental Investigation ◽  
Composite Materials ◽  
Numerical Models ◽  
Optical Microscope ◽  
Fracture Mechanisms ◽  
Material Structure ◽  
Propagation Process ◽  
Reinforced Plastics ◽  
Delamination Propagation

The results of analyzing fracture toughness in carbon fiber-reinforced plastics by the type of delamination are presented in the article. The goal of this paper is investigation of delamination propagation process and fracture mechanics parameters in modern CFRPs. This type of composite materials is extensively used in high load aerospace structures. Modern polymer composite materials are the subject of our research. A technique of manufacturing specimens for testing by the vacuum infusion process is presented in the paper. Experimental investigation of delamination propagation process by mode I and II was performed with the aid of up-to-date testing equipment using a special type of specimens such as a double cantilever beam. Researchers usually use this type of specimen for the validation of their numerical models. Critical values of energy release rate and load-displacement curves were obtained for two types of material unidirectional and woven. Examination of microscopic sections of the tested specimens using an optical microscope allowed us to identify the specific fracture mechanisms of material structure.

scholarly journals Experimental Investigation of a Novel Blast Wave Mitigation Device

2006 ◽  
Author(s):  
Zhenbi Su ◽  
Zhaoyan Zhang ◽  
George Gogos ◽  
Reed Skaggs ◽  
Bryan Cheeseman ◽  
...  
Keyword(s):  
Shock Wave ◽  
Experimental Investigation ◽  
Wave Propagation ◽  
Blast Wave ◽  
Hopkinson Bar ◽  
Honeycomb Structure ◽  
Experimental Results ◽  
Maximum Pressure ◽  
Propagation Process ◽  
Piston Cylinder

A novel blast wave mitigation device was investigated experimentally in this paper. The device consists of a piston-cylinder assembly. A shock wave is induced within the cylinder when a blast wave impacts on the piston. The shock wave propagates inside the device and is reflected repeatedly. The shock wave propagation process inside the device lengthens the duration of the force on the base of the device to several orders of magnitude of the duration of the blast wave, while it decreases the maximum pressure by several orders of magnitude. Two types of experiments were carried out to study the blast wave mitigation device. The first type of experiments was done with honeycomb structures protected by the blast wave mitigation device. Experimental results show that the device can adequately protect the honeycomb structure. A second type of experiments was done using a Hopkinson bar to measure the pressure transmitted through the blast wave mitigation device. The experimental results agree well with results from a theoretical model.

Experimental investigation of three-dimensional propagation process from surface fault

2008 ◽  
Vol 51 (10) ◽  
pp. 1426-1435 ◽  
Author(s):  
LiQiang Liu ◽  
PeiXun Liu ◽  
HonChu Wong ◽  
ShaoPeng Ma ◽  
YanShuang Guo
Keyword(s):  
Experimental Investigation ◽  
Three Dimensional ◽  
Propagation Process

Experimental investigation of H2 combustion and supersonic cooling in an annular channel

1992 ◽  
Vol 27 (6) ◽  
pp. 669-674
Author(s):  
R. V. Albegov ◽  
V. A. Vinogradov ◽  
G. G. Zhadan ◽  
S. A. Kobyzhskii
Keyword(s):  
Experimental Investigation ◽  
Annular Channel ◽  
Supersonic Cooling
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