Prediction of Thermal Strains in Fibre Reinforced Plastic Matrix by Discretisation of the Temperature Exposure History: An Advanced Study

Fiber reinforced plastic matrix pipes have been widely used in the field of civil engineering and hydraulic engineering. In general, the existing FEM models used in the seismic analysis of buried pipes do not fully consider the dynamic interaction between pipe and surrounding soil, and most of the models are proposed for homogeneous pipe. Therefore, the existing models cannot be directly applied to the seismic analysis of fiber reinforced plastic matrix pipes with laminated structure. Based on the aforementioned, the FEM model for the seismic analysis of fiber reinforced plastic matrix pipes is presented by taking consideration of the laminated structure, the complicated dynamic interaction between pipe and surrounding soil, and the propagation of seismic scattering waves from finite field to infinite field. The analysis results of a project case show that the proposed model can reasonably analyse the dynamic response of buried fiber reinforced plastic matrix pipes under seismic load.

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The stresses induced in reinforced plastic matrix pipes by saddle supports

The Journal of Strain Analysis for Engineering Design ◽

10.1243/03093247v173147 ◽

1982 ◽

Vol 17 (3) ◽

pp. 147-155 ◽

Cited By ~ 2

Author(s):

C B Greatorex ◽

A S Tooth

Keyword(s):

Analytical Approach ◽

Shell Theory ◽

Experimental Results ◽

Pipe Material ◽

Design Features ◽

Analytical Results ◽

Reinforced Plastic ◽

Pipe Radius ◽

Series Of Experiments ◽

Plastic Matrix

The results of a series of experiments conducted on reinforced plastic matrix pipes show how the peak stresses, occurring in the saddle support region, can be reduced in magnitude by certain design features. Two methods are found of value: (1) to use a flexible medium, such as PVC or rubber, between the saddle and pipe, and (2) to support the pipe on a saddle with a radius greater than the pipe radius. The experimental results are compared with an analytical approach using shell theory making the assumption that the pipe material is isotropic. The agreement between the experimental and analytical results is promising.

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Hierarchical multiscale modeling of failure in unidirectional fiber-reinforced plastic matrix composite

Materials & Design (1980-2015) ◽

10.1016/j.matdes.2009.12.009 ◽

2010 ◽

Vol 31 (5) ◽

pp. 2312-2318 ◽

Cited By ~ 16

Author(s):

Boming Zhang ◽

Zhong Yang ◽

Yufeng Wu ◽

Hongwei Sun

Keyword(s):

Multiscale Modeling ◽

Matrix Composite ◽

Fiber Reinforced ◽

Unidirectional Fiber ◽

Fiber Reinforced Plastic ◽

Reinforced Plastic ◽

Plastic Matrix ◽

Hierarchical Multiscale

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Bonding Strength of FRP-Metal Hybrids

Technologies for Lightweight Structures (TLS) ◽

10.21935/tls.v3i1.123 ◽

2020 ◽

Vol 3 (1) ◽

pp. 1-8

Author(s):

Gerd Sebastiani ◽

Sebastian Pfeifer ◽

Lars Röber ◽

Jun Katoh ◽

Zenzo Yamaguchi ◽

...

Keyword(s):

Influencing Factors ◽

Surface Treatments ◽

Production Costs ◽

Adhesively Bonded ◽

Reinforced Plastic ◽

Additional Production ◽

Peel Force ◽

Plastic Matrix ◽

The Right ◽

Metal Hybrids

The lightweight credo “the right material in the right place” raises an interesting concern once different materials are meant to provide a watertight bond. Therefore, we investigate the bonding behavior of metals with Fiber-Reinforced-Plastic (FRP) materials. In order to optimize the bond, the major influencing factors and their interactions are studied.In order to identify the above interactions, FRP-metal hybrid specimens were investigated with regard to peel forces and shear strengths. During manufacturing the influencing factors such as sheet metal and FRP type, surface treatments, and bonding processes were varied.Considering the peel force, a thermoset plastic matrix adhesively bonded to steel provided the best results, along with the use of a novel surface etching method by Kobelco. The latter yielded the highest shear strengths within this investigation. No bond could be obtained applying thermoset plastic matrices for in-operandi connections.Using adhesives or surface treatments introduced additional production costs. Hence, in-operandi bonding would be a favorable option, however, one requiring further research. Compared to the material costs, the additional production costs could prove to be insignificant once the bonding process has been properly robustified and automated.

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