Long-term strength of reinforced composites

Dimitrienko, Yu. I.; Dimitrienko, I. P.

doi:10.1007/bf00608446

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…The existence of various concurrent chemical reactions accompanied by other physical phenomena such as evaporation, melting, and ablation introduce further complication for the modeling of the decomposition kinetics . The irreversible physico‐chemical processes of ablation for polymer composites includes surface ablation, when an irreversible decrease of the composite mass occurs owing to sequential removal of material from the surface, and volume ablation (thermal decomposition), when the composite mass decreases due to internal gas generation . Lots of researchers have studied the surface ablation properties of ablative materials .…”

Section: Introductionmentioning

confidence: 99%

Thermal decomposition behavior of silica‐phenolic composite exposed to one‐sided radiant heating

Shi

Liang

2014

Polymer Composites

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When polymer‐matrix composite reaches sufficiently high temperature, pyrolysis reactions of the polymer matrix occur. The thermal decomposition behavior of silica‐phenolic composite was investigated using solar radiant heating experiment with one‐sided heat flux. Thermogravimetric studies and combined thermal analysis techniques were performed to characterize the thermal decomposition kinetics of phenolic resin. Simultaneously a thermal response model was used to calculate the through‐thickness temperature distribution. The calculated time‐dependent temperature profile at different material depths were compared with the experimental results measured at the same location. The silica‐phenolic composite exhibited an excellent thermal insulation during thermal exposure. The postheating specimen was sectioned in millimeter segments to determine the density profile. On the basis of the density profile, the transition from char layer to pyrolysis zone to virgin material was estimated. Finally, the material morphology was analyzed for silica‐phenolic composite after thermal exposure. POLYM. COMPOS., 36:1557–1564, 2015. © 2014 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Thermal decomposition behavior of silica‐phenolic composite exposed to one‐sided radiant heating

Shi

Liang

2014

Polymer Composites

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“…On the other hand, one of the current problems in the study of the composites is the prediction of their holding in the long term, necessary for the design of structures based on these materials. This theme based approaches are based on models of damage and hereditary creep in which assessment of the long-term behavior models must establish as integral operators (Schapery, 1997;Dimitrienko and Yu, 1989). In these conditions, one of the critical issues is the determination of the type of influence functions or kernels of operators and their parameters.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Heredity Kernels on the Prediction of the Life Time of Fiberglass Composites

Olodo¹,

Adjovi²,

Niang³

2013

RJASET

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One of the major problems encountered in the prediction of the hereditary viscoelastic behavior of polymeric composites, is the determination of the heredity kernels. This issue comes down to the identification of the model characterizing the viscoelastic properties of these materials. The purpose of this work is to propose a model for prediction of viscoelastic nonlinear behavior of a composite laminate matrix polyester KACT-B by the study and analysis of the heredity kernels and their influence on the life time of this material. The identification of this model required the experimental determination at room temperature, of the viscoelastic parameters of the heredity kernels by a macroscopic approach. These data provide predictive tools for the establishment of the life time under static complex solicitation and yield strength in the long term for this type of material. Sufficiently interesting in terms of concept and methodology, experimental tests in this study, performed on polymeric fiberglass composite, are still few but develop at a pace that we can look in the near future access suitable for purposes of design data.

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Deformation and strength of degradable heat-protective materials

Dimitrienko¹,

Epifanovskii²

1990

Mech Compos Mater

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Long-term strength of reinforced composites

Cited by 5 publications

References 3 publications

Thermal decomposition behavior of silica‐phenolic composite exposed to one‐sided radiant heating

Thermal decomposition behavior of silica‐phenolic composite exposed to one‐sided radiant heating

Influence of the Heredity Kernels on the Prediction of the Life Time of Fiberglass Composites

Deformation and strength of degradable heat-protective materials

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