Composite tank containers can reduce cost

2016 ◽  
Vol 60 (5) ◽  
pp. 246
Keyword(s):  
Composite Tank

Experimental study of the strength and durability of metal-composite high-pressure tanks

2019 ◽  
Vol 85 (1(I)) ◽  
pp. 49-56 ◽  
Author(s):  
A. M. Lepikhin ◽  
V. V. Moskvichev ◽  
A. E. Burov ◽  
E. V. Aniskovich ◽  
A. P. Cherniaev ◽  
...  
Keyword(s):  
High Pressure ◽  
Strain State ◽  
Full Scale ◽  
Fracture Mechanisms ◽  
Metal Composite ◽  
Test Results ◽  
Stress Strain ◽  
Pneumatic Pressure ◽  
Stress Strain State ◽  
Composite Tank

The results of unique experimental studies of the strength and service life of a metal-composite high-pressure tank are presented. The goal of the study is to analyze the fracture mechanisms and evaluate the strength characteristics of the structure. The methodology included tests of full-scale samples of the tank for durability under short-term static, long-term static and cyclic loading with internal pneumatic pressure. Generalized test results and data of visual measurements, instrumental and acoustic-emission control of deformation processes, accumulation of damages and destruction of full-scale tank samples are presented. Analysis of the strength and stiffness of the structure exposed to internal pneumatic pressure is presented. The types of limiting states of the tanks have been established experimentally. Change in the stress-strain state of the tank under cyclic and prolonged static loading is considered. Specific features of the mechanisms of destruction of a metal-composite tank are determined taking into account the role of strain of the metal liner. The calculated and experimental estimates of the energy potential of destruction and the size of the area affected upon destruction of the tank are presented. Analysis of test results showed that the tank has high strength and resource characteristics that meet the requirements of the design documentation. The results of the experiments are in good agreement with the results of numerical calculations and analysis of the stress-strain state and mechanisms of destruction of the metal-composite tank.

scholarly journals An Optimum Fatigue Design of Polymer Composite Compressed Natural Gas Tank Using Hybrid Finite Element-Response Surface Methods

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 483
Author(s):  
Kazem Reza Kashyzadeh ◽  
Seyed Saeid Rahimian Koloor ◽  
Mostafa Omidi Bidgoli ◽  
Michal Petrů ◽  
Alireza Amiri Asfarjani
Keyword(s):  
Finite Element ◽  
Fatigue Life ◽  
Natural Gas ◽  
Response Surface ◽  
Polymer Composite ◽  
Wall Thickness ◽  
Composite Shell ◽  
Compressed Natural Gas ◽  
Fiber Angle ◽  
Composite Tank

The main purpose of this research is to design a high-fatigue performance hoop wrapped compressed natural gas (CNG) composite cylinder. To this end, an optimization algorithm was presented as a combination of finite element simulation (FES) and response surface analysis (RSA). The geometrical model was prepared as a variable wall-thickness following the experimental measurements. Next, transient dynamic analysis was performed subjected to the refueling process, including the minimum and maximum internal pressures of 20 and 200 bar, respectively. The time histories of stress tensor components were extracted in the critical region. Furthermore, RSA was utilized to investigate the interaction effects of various polymer composite shell manufacturing process parameters (thickness and fiber angle) on the fatigue life of polymer composite CNG pressure tank (type-4). In the optimization procedure, four parameters including wall-thickness of the composite shell in three different sections of the CNG tank and fiber angle were considered as input variables. In addition, the maximum principal stress of the component was considered as the objective function. Eventually, the fatigue life of the polymer composite tank was calculated using stress-based failure criterion. The results indicated that the proposed new design (applying optimal parameters) leads to improve the fatigue life of the polymer composite tank with polyethylene liner about 2.4 times in comparison with the initial design.

scholarly journals Health monitorine of a filament wound CFRP composite tank with embedded FBG sensors

2004 ◽  
Vol 2004.12 (0) ◽  
pp. 9-10
Author(s):  
Kentaro Hayashi ◽  
Tadahito Mizutani ◽  
Yoji Okabe ◽  
Nobuo Takeda
Keyword(s):  
Filament Wound ◽  
Cfrp Composite ◽  
Fbg Sensors ◽  
Composite Tank

Composite tank with structurally integrated noninvasive fluid-level monitoring

1995 ◽  
Author(s):  
William B. Spillman, Jr. ◽  
S. Durkee ◽  
J. D. Blair
Keyword(s):  
Fluid Level ◽  
Composite Tank ◽  
Level Monitoring

An Integrated Systematic Approach to Linerless Composite Tank Development

2005 ◽  
Author(s):  
Kaushik Mallick ◽  
John Cronin ◽  
Kevin Ryan ◽  
Steven Arzberger ◽  
Naseem Munshi ◽  
...  
Keyword(s):  
Systematic Approach ◽  
Composite Tank

Investigation on On-Board High-Pressure Composite Tanks Subjected to Localized and Engulfing Fire

2012 ◽  
Author(s):  
Kesheng Ou ◽  
Jinyang Zheng ◽  
Yongzhi Zhao
Keyword(s):  
High Pressure ◽  
Exposure Time ◽  
Three Dimensional ◽  
Pressure Rise ◽  
Fire Exposure ◽  
Key Factors ◽  
Activation Time ◽  
Thermally Activated ◽  
Tank Pressure ◽  
Composite Tank

Safety performance of on-board high-pressure composite tanks under fire exposure has drawn extensive attention. Vehicle fires usually lead to such tanks experiencing a term of localized and engulfing fire. During this period, the composite tank would be degraded and even burst before pressure relief device (PRD) opens to release internal high-pressure gas. In this paper, experimental investigation for the tanks subjected to localized and engulfing fire was conducted on an Aluminum liner composite tank filled with hydrogen. Based on the temperature distribution and pressure rise measured in the experiment, a three-dimensional computational fluid dynamics model is developed to study the key factors influencing PRD activation time. The effects of filling medium, tank pressure and localized fire exposure time are analyzed in detail. The experimental results showed that pressure and temperature of internal gas changed little during the localized fire. In addition, filling medium and tank pressure have weak influence on the activation time of thermally-activated PRD (TPRD), but have significant effect on the activation time of pressure-activated PRD. TPRD can respond more quickly to protect the hydrogen composite tank than pressure-activated PRD. PRD activation time increases as the localized fire exposure time extends.

scholarly journals Analysis of a hybrid composite tank under pressure

2008 ◽  
Vol 2 (1) ◽  
pp. 77-82
Author(s):  
A. Hocine ◽  
D. Chapelle ◽  
A. Benamar ◽  
A. Bezazi
Keyword(s):  
Hybrid Composite ◽  
Composite Tank
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