Which elasticity tensors are realizable?

Article Abstract:

A positive definite fourth order tensor conforming to the conventional symmetries of elasticity tensors is realizable as the effective elasticity tensor of a two-phase composite. The composite contains a suitably compliant and a sufficiently rigid isotropic phases, characterized in a suitable microstructure. Layering of a suitable subset of extreme materials, known as building blocks, constitutes the composite.

Testing, Composite materials, Materials testing

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Micromechanical modeling of FRCs containing matrix cracks and partially debonded fibers

Article Abstract:

Results indicate a dynamic interaction between matrix crack and partially debonded fiber. Data are presented on the influence of reinforced fibers and matrix interface on the local stress field around matrix cracks in fiber reinforced composites.

Canada, Usage, Micromechanics, Micromechanics (Engineering), Fiber reinforced composites, Fiber-reinforced ceramics, Ceramic composites, Fourier transformations, Fourier transforms, Matrix mechanics

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Compressive response and failure of circular cell polycarbonate honeycombs under inplane uniaxial stresses

Article Abstract:

Results demonstrate that hexagonally packed circular cell honeycombs are orthotropic in shape. Data point out that the features of the honey comb determine their energy absorbing characteristics and corresponding sandwich panels.

United States, Numerical analysis, Polycarbonates, Sandwich construction, Honeycomb structures, Honeycomb structures (Materials)

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