Computational analysis of damage in hybrid composite structure

Had, Jiří; Růžička, Milan

doi:10.1016/j.compstruct.2015.09.009

Cited by 4 publications

(4 citation statements)

References 39 publications

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“…The measurement of shear failure behaviour was tested in a standardised Iosipescu fixture. Experimental results can be found in [7].…”

Section: Methodsmentioning

confidence: 99%

“…Prefabricated bundles are put into this form, moulded and subsequently cured into the final shape. The failure and damage behaviour of the whole cell structure, and, first of all, the behaviour of the building constituents, was determined in [7]. Generally, cell composite structure is built from parts with mostly brittle micro-behaviour (UD composite) and from materials with plasticity.…”

Section: Cell Composite Structurementioning

confidence: 99%

“…In the beginning of the scheme is the assessment of the elastic state. The elastic state is evaluated separately in each individual damage mode, according to Equation (7), where…”

Section: Solution Of Macroscopic Statementioning

confidence: 99%

“…Substituting the reduced stress from Equation (8) into Equation ( 7), the final equation for the solution of the actual level of degradation is expressed as: The new proposed macro-state solution scheme contains several checks of convergence. The whole scheme is fully described in [7]. It contains two level of convergence.…”

Section: Engineering Mechanics 2015mentioning

confidence: 99%

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Simulation of Damage in Hybrid Composite Cell Structure

Had

Růžička

2016

AMM

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A novel type of hybrid cell composite structure has been developed and used for many practical applications. Typical macroscopic sub-cells in the cross section structure are formed by the stamping process of partially cured and axially-oriented high modulus carbon fibre bundles. Each bundle is wrapped around by a thin layer of high strength fibres. Main goal of this paper is the simulation of damage of this new composite structure. Modified hierarchy homogenization method (Non-uniform Transformation Field Analysis) was proposed for simulation of damage progress. Modification is based on introducing damage modes. The method is based on assumption that field of in-elastic strain describing damage in each constituents can be decomposed on finite set of fields, called damage modes. Modified NTFA method was incorporated into FEM code and verified in several four-point bending tests.

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“…The measurement of shear failure behaviour was tested in a standardised Iosipescu fixture. Experimental results can be found in [7].…”

Section: Methodsmentioning

confidence: 99%

Section: Cell Composite Structurementioning

confidence: 99%

“…In the beginning of the scheme is the assessment of the elastic state. The elastic state is evaluated separately in each individual damage mode, according to Equation (7), where…”

Section: Solution Of Macroscopic Statementioning

confidence: 99%

Section: Engineering Mechanics 2015mentioning

confidence: 99%

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Simulation of Damage in Hybrid Composite Cell Structure

Had

Růžička

2016

AMM

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Testing of mechanical properties of thick-walled carbon fiber composite for FEM simulations

Vinšová

Urban

2017

Materials Today: Proceedings

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Determination of deformation of a highly oriented polymer under three-point bending using finite element analysis

et al. 2016

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The molecular chains of a highly oriented polymer lie in the same direction. A highly oriented polymer is an engineering material with a high strength-to-weight ratio and favorable mechanical properties. Such an orthotropic material has biaxially arranged molecular chains that resist stress in the tensile direction, giving it a high commercial value. In this investigation, finite element analysis (FEA) was utilized to elucidate the deformation and failure of a highly oriented polymer. Based on the principles of material mechanics and using the FEA software, Abaqus, a solid model of an I-beam was constructed, and the lengths of this beam were set based on their heights. Three-point bending tests were performed to simulate the properties of the orthotropic highly oriented polymer, yielding results that reveal both tension failure and shear failure. The aspect ratio that most favored the manufacture of an I-beam from highly oriented polymers was obtained; based on this ratio, a die drawing mold can be developed in the future.

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Computational analysis of damage in hybrid composite structure

Cited by 4 publications

References 39 publications

Simulation of Damage in Hybrid Composite Cell Structure

Simulation of Damage in Hybrid Composite Cell Structure

Testing of mechanical properties of thick-walled carbon fiber composite for FEM simulations

Determination of deformation of a highly oriented polymer under three-point bending using finite element analysis

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