Comparative Study of Tensile Behaviour for Layered Polymeric Composite Materials

Marinescu, Marinela; Butu, Larisa; Borda, Claudia; Arsene, Delicia; Butu, Mihai

doi:10.37358/mp.18.3.5013

Cited by 3 publications

(5 citation statements)

References 7 publications

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“…The hypoelastic model The quasi linear part of the most general form of Stutz's hypoelastic model, [1] is:…”

Section: Theoretical Partmentioning

confidence: 99%

“…Composite materials are present in all activity fields and have proven to be a class of materials with high potential in ceramic, pharmaceutical, chemical [1], automotive [2,3], aerospace [4], and electronics industry [5], in medicine [6], defense [7] and in the field of sports equipment manufacturing. Metal matrix composites represent 10% of the production of composite materials; as matrix metals are chosen Al, Ti, Mg, Ni, Cu, Fe, [8].…”

Section: Introductionmentioning

confidence: 99%

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Composite Materials Behaviour. Study, Development and Implementation of the Hypoelastic Model

Sava¹

2021

Mater. Plast.

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The purpose of this research is to study and develop the formulation of a rheological law for composite materials with elasto-plastic behaviour in cold compression. Starting from the generally known relationships in literature, the hypoelastic model proposed for the composite materials behaviour (as powder materials) has been developped/explained, ensuring the understanding of the research. The hypolastic theory has been used for modeling the continuous transition from elastic to plastic state for a powder material. The material behaviour is described through an isotropic tensor relationship between the deformation speed tensor, Cauchy�s stress tensor and its derivative in relation to time (the Jaumann�s derivative). Only the linear part has been used from the general form of the law which depends on scalar functions. The calculations lead to relationships depending on five parameters which are identified according to experimental data. A numerical simulation of the stress-strain evolution during the simple compression of a diepressed powder sample is made; the numerical simulation has been validated by the experimental results.

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“…The hypoelastic model The quasi linear part of the most general form of Stutz's hypoelastic model, [1] is:…”

Section: Theoretical Partmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Composite Materials Behaviour. Study, Development and Implementation of the Hypoelastic Model

Sava¹

2021

Mater. Plast.

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“…Compressive strength (MPa) is given by the following formula (1): (1) where, F = Load applied [N], A = Cross section area [mm 2 ].…”

Section: Experimental Partmentioning

confidence: 99%

“…Polymer composite materials are attractive for industrial applications, especially due to their mechanical properties. The properties of the composite materials are influenced by many factors such as: the characteristics of the constituent materials, manufacturing technology, the percentages of the constituent materials, the dimensions and the arrangement of the reinforcement elements into the matrix, the fiber-matrix interface properties, the degree of humidity of the material [1,2]. The heterogeneity of composite and defects such as microcraks and voids, determined by the manufacturing process, influence significant the compressive strength of the composite more than any other mechanical properties.…”

mentioning

confidence: 99%

Study Regarding the Compressive Properties of Glass Fiber Reinforced Composites

Spânu¹,

Amza²,

Abaza³

2018

Mat.Plast.

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Compressive strength of the polymeric composites is an important data for design of composite structures and therefore a depth study of this mechanical property is imperative. The mechanical properties of the polymer composites vary in the very large ranges according to the characteristics of the constituents, to their proportions and many other factors. Compressive property and failure mechanism of polymer composite materials reinforced with glass fiber were investigated in this paper. The experimental data for the studied materials were included the compressive strength, strain, poisson�s ratio and modulus. Some of these experimental values could be affected by aberrant errors. This paper also presents an application that removes the experimental data affected by gross errors from the sample of numerical values. The elimination of experimental data affected by gross errors is based on Chauvenet criterion.

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“…They have the advantage of being less sensitive to moisture than resin-based materials. When moisture control is a problem, GICs may be a potential alternative for resin-based materials [17][18][19][20][21].…”

mentioning

confidence: 99%

Fluoride Release and Uptake Capability of Glass-ionomer Cements and Compomers Used as Dental Restorative Materials

Makkai¹,

Székely²,

Fazakas³

et al. 2019

Mat.Plast.

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Dental caries and secondary caries are the most common problems in dentistry. Many studies provided evidence for the anticariogenic effect of fluorides. The incidence of secondary caries is decreased in teeth restored with fluoride releasing materials. The purpose of the present in vitro study is to evaluate the fluoride release and uptake capability of two glass-ionomer cements and two compomers. A total number of 60 specimens were prepared according to the manufacturer�s instructions using silicone molds. The specimens were transferred in plastic containers containing artificial saliva (pH=7), incubated at 37�C for 24 h and divided in three subgroups: control group, varnish treated group and dentifrice treated group. The fluoride ion content was measured on five times during a period of 30 days using an Orion 720A fluoride meter with 9609 BN fluoride ion electrode. The self-curing glass-ionomer cement released the highest amounts of fluoride ions at the beginning and after the one month study period. The samples of the four materials tested in the varnish treated groups showed significant differences compared to their control groups on the second day. Dentifrice treated groups did not show significant differences compared to their control groups, except values measured after 30 days. Application of fluoride varnish produced an increase of fluoride release for the first 24 h in case of all materials. However, results suggest that the use of fluoridated dentifrice would be more effective in caries prevention due to their fluoride uptake capability.

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Comparative Study of Tensile Behaviour for Layered Polymeric Composite Materials

Cited by 3 publications

References 7 publications

Composite Materials Behaviour. Study, Development and Implementation of the Hypoelastic Model

Composite Materials Behaviour. Study, Development and Implementation of the Hypoelastic Model

Study Regarding the Compressive Properties of Glass Fiber Reinforced Composites

Fluoride Release and Uptake Capability of Glass-ionomer Cements and Compomers Used as Dental Restorative Materials

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