Structural design and experimental investigation on filament wound toroidal pressure vessels

2015 ◽  
Vol 121 ◽  
pp. 114-120 ◽  
Author(s):  
Haixiao Hu ◽  
Shuxin Li ◽  
Jihui Wang ◽  
Lei Zu
Keyword(s):  
Experimental Investigation ◽  
Structural Design ◽  
Pressure Vessels ◽  
Filament Wound

Experimental Investigation on the Effect of Arm Length on Accuracy of Torque Wrench

2016 ◽  
Vol 853 ◽  
pp. 216-220 ◽  
Author(s):  
You Gang Peng ◽  
Yong Wang
Keyword(s):  
Experimental Investigation ◽  
Structural Design ◽  
Bending Moment ◽  
Theoretical Solution ◽  
Calibration Laboratory ◽  
Moment Measurement ◽  
Torque Wrench ◽  
Actual Use ◽  
Good Agreement

Experiments were carried out to investigate the effect of arm length on the accuracy of two typical conventional torque wrenches, namely, setting type torque wrench (STW) and indicating type torque wrench (ITW). The experiment results demonstrate that the measurement values of STW rises rapidly with decreasing arm length while measured torque of ITW shows irrelevant to arm length. Theoretical solution with respect to STW shows quite good agreement with experiment results. Irrelevance of arm length regard to ITW may be attributable to compensation of bending moment measurement due to proper arrangement of circuit and structural design. In order to conduct a proper assessment at a calibration laboratory or ensure its reliability with reference to actual use conditions, a torque wrench should be used by a customer at the loading point as recommended.

Framework for a Combined Netting Analysis and Tsai-Wu-Based Design Approach for Braided and Filament-Wound Composites

2013 ◽  
Vol 135 (3) ◽  
Author(s):  
Rifat Hossain ◽  
Jason P. Carey ◽  
Pierre Mertiny
Keyword(s):  
Composite Structures ◽  
Longitudinal Direction ◽  
Industrial Applications ◽  
Pressure Vessels ◽  
Design Tool ◽  
Combined Loading ◽  
Axially Symmetric ◽  
Reinforced Polymer ◽  
Failure Theory ◽  
Filament Wound

Axially symmetric fiber-reinforced polymer composite structures, such as pressure vessels and piping, are being widely used in different industrial applications where combined loading conditions may be applied. It is imperative to determine a suitable fiber angle, or a distribution of fiber angles, along the longitudinal direction of the structure in order to achieve best performance in terms of mechanical behavior and strength for structures subjected to combined loadings. To this end, an approach combining netting analysis and Tsai-Wu failure theory was employed as a design tool to assess critical fiber angles at which applied loadings would cause a structure to fail. Together, the proposed netting analysis and failure theory-based approach constitute a simple, expedient, and convenient design process for complex-shaped structures.

CNT/epoxy interleaves for strengthening performance of filament wound composite structures

2021 ◽  
pp. 2140001
Author(s):  
Soo-Jeong Park ◽  
Yun-Hae Kim
Keyword(s):  
Structural Design ◽  
Composite Structures ◽  
Influencing Factor ◽  
Interfacial Bonding ◽  
Filament Wound ◽  
Interfacial Bonding Strength ◽  
The Matrix ◽  
Filament Wound Composite ◽  
Low Performance ◽  
Wound Composite

The failure mechanism of composites dominates the matrix, fiber and interface, and in general, the matrix corresponds to the definitive cause of damage. A filament–wound composite structure involves a notable bridging effect owing to the matrix between the layers, and particle additives are generally adopted to strengthen the matrix. However, particle additives exhibit a low performance when applied to structures, owing to the dispersibility and particle agglomeration. In this study, the strengthening performance of carbon nanotube (CNT)/epoxy interleaves was experimentally verified to facilitate their implementation in the structural design of a filament–wound cylinder structure. The burst pressure, compression, bending and interfacial bonding strength of the cylinder improved by approximately 20%, 161%, 16% and 36%, respectively, and the positioning of CNT/epoxy interleaves was a more notable influencing factor compared to the proportion of CNTs in the entire winding layer. The number of macro voids decreased inside the epoxy modified CNT. The findings demonstrated that the incorporation of CNTs through CNT/epoxy interleaves could facilitate the matrix strengthening and enhance the interfacial bonding.

Filament Winding—Introduction and Overview

2011 ◽  
pp. 1-5
Author(s):  
S.T. Peters
Keyword(s):  
Structural Analysis ◽  
Deep Sea ◽  
High Speed ◽  
Pressure Vessels ◽  
Filament Winding ◽  
Filament Wound ◽  
Machine Control ◽  
Winding Machine

Abstract Most filament winding machines now have computer controls and at least three axes. Winding with four axes is increasingly common because the shapes of the products have evolved to include more complexity. The automation used on the winding machine and ancillary components does not eliminate the need for proper fiber handling. This chapter is a primer on modern filament winding equipment and its use, starting with an overview of machine control and then discussing the design and structural analysis of filament wound components such as pressure vessels, pipes, grid structures, deep sea oil platform drill risers, high-speed rotors, and filament-wound preforms.

An experimental investigation on structural design of shape memory polymers

2019 ◽  
Vol 28 (9) ◽  
pp. 095017 ◽  
Author(s):  
Nima Roudbarian ◽  
Mahdi Baniasadi ◽  
Mehdi Ansari ◽  
Mostafa Baghani
Keyword(s):  
Experimental Investigation ◽  
Shape Memory ◽  
Structural Design ◽  
Shape Memory Polymers
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