THE CRITERIA OF THE FAILURE OF POLYMER MATRIX COMPOSITES (review)

Гриневич, Д. В.; Yakovlev, N. O.; Славин, А. В.

doi:10.18577/2307-6046-2019-0-7-92-111

Cited by 9 publications

(1 citation statement)

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“…The criterion of allowable strain is one of the most common strength criteria used in design and calculation of the static strength of structures made of composite materials (CM) [1,2]. The strains that occur in the CM structure under the design load should not exceed the allowable values.…”

Section: Introductionmentioning

confidence: 99%

Fatigue life analysis of a composite materials structure using allowable strain criteria

Turbin,

Shelkov,

Ivanov

et al. 2023

Preprint

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In the current research, a method for estimation of the durability of a structure based on an integrated calculation of static and fatigue strength according to the criterion of allowable strain is presented. The proposed technique is demonstrated for the upper stringer panel of the wing design. In the course of calculations, several combinations of design service goals, levels of allowable strains, and levels of cyclic stresses were considered. As a result, the relative values of stiffness degradation and the required safety ratios of static strength were obtained.

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Section: Introductionmentioning

confidence: 99%

Fatigue life analysis of a composite materials structure using allowable strain criteria

Turbin,

Shelkov,

Ivanov

et al. 2023

Preprint

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The Problem of the Local Stress/strain Modes in the Matrix of Fibrous Composites

Kolpakov

Rakin²

2023

Lecture Notes in Civil Engineering

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On the basis of numerical solutions of the cellular problem of the theory of elasticity, an analysis was made of the deformation modes of the binder cross-reinforced with fibers of the composite at the microlevel. All possible types of local deformation of the binder of the fiber-reinforced composite, predicted in the simplified model in (Kalamkarov A L, Kolpakov A G: Analysis, Design and Optimization of Composite Structures. Wiley, Chichester (1997)), are found in numerical calculations. It is found that the local stress–strain state of the binder depends on the cross-sectional shape of the fibers. In particular, for fibers with a circular cross-section, one of the modes is strongly weakened. Numerical calculations do not show the presence of modes other than those described in (Kalamkarov A L, Kolpakov A G: Analysis, Design and Optimization of Composite Structures. Wiley, Chichester (1997)). If, in the case of square fibers, the assessment of the stress–strain state value is possible using simplified formulas from (Kalamkarov A L, Kolpakov A G: Analysis, Design and Optimization of Composite Structures. Wiley, Chichester (1997)), then for fibers of other sections, it is necessary to use a computer to calculate the stress–strain state.

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Increasing Adhesion of Carbon Fiber Filler to Polymer by Sizing – a Review

Sidorina

2023

Fibre Chem

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THE CRITERIA OF THE FAILURE OF POLYMER MATRIX COMPOSITES (review)

Cited by 9 publications

References 0 publications

Fatigue life analysis of a composite materials structure using allowable strain criteria

Fatigue life analysis of a composite materials structure using allowable strain criteria

The Problem of the Local Stress/strain Modes in the Matrix of Fibrous Composites

Increasing Adhesion of Carbon Fiber Filler to Polymer by Sizing – a Review

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