Impact behaviour of an innovative plasticized poly(vinyl chloride) for the automotive industry

Bernard, Chrystelle; Bahlouli, Nadia; Wagner-Kocher, Christiane; Ahzi, Saı̈d; Rémond, Yves

doi:10.1051/epjconf/20159402013

Cited by 3 publications

(6 citation statements)

References 17 publications

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“…The experimental results indicate that the mechanical properties, especially at high strain rates, are different for the various thicknesses. Considering all the investigations, the elastic modulus and yield stress are greater for the higher thickness (Bernard et al, 2015).…”

Section: Introductionmentioning

confidence: 87%

“…Plasticized PPVC is widely utilized, for example, in automotive industry, as part of an energy absorbing structure of a car body. In Bernard et al (2015), an influence of a wide range of strain rate on the mechanical response and mechanical properties of PPVC composed of 50% of PVC, 40% of plasticizers and 10% of additives was investigated using normalized thicknesses of different samples: 1.0, 1.25 and 1.5. The experimental results indicate that the mechanical properties, especially at high strain rates, are different for the various thicknesses.…”

Section: Introductionmentioning

confidence: 99%

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Crushing Behaviour of the PVC Foam Loaded with Beaters of Various Shapes

Bogusz

Gieleta

Konarzewski

et al. 2018

Acta Mechanica Et Automatica

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Statistically, at least 50% of all injuries experienced by police officers in the line of duty are due to assaults with blunt objects. Therefore, vests used by the police should provide not only good ballistic resistance, but also good protection against such threats. Foamed materials are possible to be used for body protectors or inserts of protective clothes. The effects of dynamic impact with beaters of different shapes onto behaviour of polymeric foamed material were determined. There were used four types of beaters: flat, cylindrical, edgy and cornered. Strikes with blunt objects such as a flat board, baseball bat, edgy brick, pavement brick or a sharp stone, to which a protective ware can be subjected, were simulated. The impact load was applied to the rectangular specimens, made of polyvinyl chloride foam, with a usage of a drop hammer. Plots of force versus compression for all the tested samples were obtained and analysed. The effects of impacts with beaters of different shapes onto foamed material samples were presented. A shape of the blunt object significantly influences crushing behaviour of the foamed material. The impact energy of a flat beater is absorbed effectively on a short distance, since it is spread on a relatively large surface. The cylindrical and edgy beaters did not cause fragmentation of the samples, however, on the upper surfaces of the samples, permanent deformations mapping the beaters shapes as well as some cracks occurred. An impact with a sharp object, for example, a cornered beater is very difficult to be neutralized by the foam material, because it is cumulated on a small area.

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Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Crushing Behaviour of the PVC Foam Loaded with Beaters of Various Shapes

Bogusz

Gieleta

Konarzewski

et al. 2018

Acta Mechanica Et Automatica

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“…For low temperature, a thermal chamber made of expanded polyvinylchloride is inserted to enclose the ends of the incident and the transmission bars. Liquid nitrogen is inserted into the thermal chamber allowing cooling the temperature of the sample (Bernard et al, 2018(Bernard et al, , 2015. To improve the thermal stability between the bars and the sample before and during the mechanical test, few milliliters of ethanol were added to the liquid nitrogen inside the thermal chamber (Bernard et al, 2018(Bernard et al, , 2015.…”

Section: Methodsmentioning

confidence: 99%

“…Liquid nitrogen is inserted into the thermal chamber allowing cooling the temperature of the sample (Bernard et al, 2018(Bernard et al, , 2015. To improve the thermal stability between the bars and the sample before and during the mechanical test, few milliliters of ethanol were added to the liquid nitrogen inside the thermal chamber (Bernard et al, 2018(Bernard et al, , 2015. On the contrary, to heat up the sample, a small furnace, enclosing the sample and extremities of the incident and transmission bars, with two electrical resistance heaters was used.…”

Section: Methodsmentioning

confidence: 99%

Identification of the dynamic behavior of epoxy material at large strain over a wide range of temperatures

Bernard

Bahlouli

George

et al. 2020

Mechanics of Materials

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“…Investigations of the mechanical response, plasticizer effect and morphology of PPVC have been of particular interest to academic researchers and industrialists because of the widespread use of PPVC in automotive crashworthiness. Many authors [10,11,12,22] investigated the strain rate dependence of PVC and PPVC with a high-level of plasticizer, from quasi-static to dynamic loading at room temperature. They also investigated the temperature sensitivity of both materials for a strain rate of 10 -2 s - 1 .…”

Section: Introductionmentioning

confidence: 99%

Multiscale description and prediction of the thermomechanical behavior of multilayered plasticized PVC under a wide range of strain rate

et al. 2018

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Plasticization of polymers largely contributed to their worldwide utilization, especially for automotive crashworthiness, by making them a more ductile material. For such applications, a clear understanding of the mechanical properties evolution over a large range of strain rate and temperature is needed. In this study, we investigate a plasticized poly(vinyl chloride) (PPVC) manufactured through a multi-layered process for the automotive industry. Analysis of the microstructure before and after mechanical testing, at different temperature and strain rate, highlighted on the presence of sodium aluminosilicate within material microstructure. After thermal degradation analysis, these particles seem to be the only one to remain at high temperature. Moreover, it is important to mention that for the possible applications of this material, the temperature range is around the glass transition region leading. Thus, careful attention should be focused on the evolution of the material properties and on the way to model them. Numerical prediction of the storage modulus and yield stress using homemade models show a good agreement with the experimental data. More, these models will make reliable the use of these materials over a wide range of temperatures and strain rates that are difficult to obtain by experience, such as intermediate strain rates between quasi static and dynamic loading.

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Impact behaviour of an innovative plasticized poly(vinyl chloride) for the automotive industry

Cited by 3 publications

References 17 publications

Crushing Behaviour of the PVC Foam Loaded with Beaters of Various Shapes

Crushing Behaviour of the PVC Foam Loaded with Beaters of Various Shapes

Identification of the dynamic behavior of epoxy material at large strain over a wide range of temperatures

Multiscale description and prediction of the thermomechanical behavior of multilayered plasticized PVC under a wide range of strain rate

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