Polypropylene tensile test under dynamic loading

• Autorzy: Khlif M. , Masmoudi N. , Bradai Ch.

Identyfikatory

DOI

10.5604/12314005.1134062

• Języki publikacji: EN

Abstrakty

EN

In this paper, a testing method is developed to determine the dynamic stress–strain responses of the polypropylene (PP) under high strain rate uniaxial tension conditions. The main objective of this study is to determine the dynamical behaviour of PP materials under transitory loading. To this effect, an experimental machine using a mixed technique of Hopkinson tension bar and a sensing block system is developed in order to study the dynamic tensile stress–strain behaviour of the low-strength and low mechanical impedance specimen. A pendulum pulse technique is employed in dynamic tension experiments to ensure that valid experimental conditions are satisfied. Results show that, compared with quasi-static behaviour, dynamic tension causes smaller failure strains. Among other, the experimental set-up, mechanical characteristic, dynamic tensile specimen, quasi-static tensile test: stress–strain curve for 0.8 s-1 strain rate, the incident and the transmitted waves recorded by the stain gauges located on the bar and the sensing block under a dynamic tensile test, the axial strain on the specimen versus time under a dynamic tensile test, the axial stress on the specimen versus time under a dynamic tensile test, dynamic tensile test: stress-strain curves of the PPC7712 polymer for various strain rates, the specimens after rupture quasi-static test and dynamic test are presented in the paper.

Słowa kluczowe

EN

dynamic tension; polypropylene; high strain rate; hopkinson bar; sensing block

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2014
• Tom: Vol. 21, No. 1
• Strony: 131--138
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Khlif M.

• National School of Engineers of Sfax, University of Sfax Analysis Laboratory of Electro Mechanical Systems BP.1173. W. 3038 Sfax, Tunisia fax: [phone]

autor

Masmoudi N.

• National School of Engineers of Sfax, University of Sfax Analysis Laboratory of Electro Mechanical Systems BP.1173. W. 3038 Sfax, Tunisia fax: [phone]

autor

Bradai Ch.

• National School of Engineers of Sfax, University of Sfax Analysis Laboratory of Electro Mechanical Systems BP.1173. W. 3038 Sfax, Tunisia fax: [phone]

Bibliografia

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