Interlaminar shear fracture of interleaved graphite/epoxy composite materials

In this study, the transport theorem of phonons and electrons is utilized to create a model to predict the thermal conductivity of composite materials. By observing or assuming the dopant displacement in the matrix, a physical model between dopant and matrix can be built, and the composite material can be divided into several regions. In each region, the phonon or electron scattering caused by boundaries, impurities, or U-processes was taken into account to calculate the thermal conductivity. The model is then used to predict the composite thermal conductivity for several composite materials. It shows a pretty good agreement with previous studies in literatures. Based on the model, some discussions about dopant size and volume fraction are also made.

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Analysis of methods of determining the interlaminar shear strength of composite materials

Polymer Mechanics ◽

10.1007/bf00857008 ◽

1977 ◽

Vol 12 (4) ◽

pp. 573-580 ◽

Cited By ~ 1

Author(s):

I. G. Zhigun ◽

V. A. Yakushin ◽

Yu. N. Ivonin

Keyword(s):

Shear Strength ◽

Composite Materials ◽

Interlaminar Shear Strength ◽

Interlaminar Shear

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Performance of All-Polypropylene Composites at LNG Temperatures

Volume 6A: Materials and Fabrication ◽

10.1115/pvp2017-65209 ◽

2017 ◽

Cited By ~ 1

Author(s):

Bilim Atli-Veltin

Keyword(s):

Composite Materials ◽

Mechanical Performance ◽

Cost Effective ◽

Tensile Tests ◽

Small Scale ◽

Failure Behavior ◽

Polypropylene Composites ◽

Design Flexibility ◽

Static Tensile ◽

Interlaminar Shear

In the small scale LNG infrastructure, composite materials are scarcely employed. Potentially, cost effective solutions for LNG applications could be developed thanks to the advantages of composite materials over metals such as weight savings, design flexibility and recyclability. The research presented in this paper focuses on the mechanical performance of fully recyclable, thermoplastic Polypropylene (PP) composite tapes at cryogenic LNG temperatures. Quasi-static tensile tests performed on [±45] laminates made of plain woven plies of PURE® show that at −196°C the behavior is bilinear with the failure strain of 6.5% and failure stress of 37 MPa. Such non-brittle failure behavior of PP is desirable for cryogenic applications. The other results presented in the paper contains [0/90] laminate results and the interlaminar shear strength characteristics at room and cryogenic temperatures.

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Tension mechanical properties of recycled glass-epoxy composite material

Acta periodica technologica ◽

10.2298/apt1243189p ◽

2012 ◽

pp. 189-198 ◽

Cited By ~ 1

Author(s):

Jelena Petrovic ◽

Darko Ljubic ◽

Marina Stamenovic ◽

Ivana Dimic ◽

Slavisa Putic

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Composite Material ◽

Composite Materials ◽

Modulus Of Elasticity ◽

Epoxy Composite ◽

Raw Materials ◽

Mechanical Tests ◽

Recycled Glass ◽

Before And After

The significance of composite materials and their applications are mainly due to their good properties. This imposes the need for their recycling, thus extending their lifetime. Once used composite material will be disposed as a waste at the end of it service life. After recycling, this kind of waste can be used as raw materials for the production of same material, which raises their applicability. This indicates a great importance of recycling as a method of the renowal of composite materials. This study represents a contribution to the field of mechanical properties of the recycled composite materials. The tension mechanical properties (tensile strength and modulus of elasticity) of once used and disposed glass-epoxy composite material were compared before and after the recycling. The obtained results from mechanical tests confirmed that the applied recycling method was suitable for glass-epoxy composite materials. In respect to the tensile strength and modulus of elasticity it can be further assessed the possibility of use of recycled glass-epoxy composite materials.

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