Experimental investigation on constitutive behavior of PVB under impact loading

Xu, Jun; Li, Yibing; Ge, Dongyun; Liu, Bohan; Zhu, Mankang

doi:10.1016/j.ijimpeng.2010.10.001

Cited by 86 publications

(40 citation statements)

References 25 publications

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“…'compaction stage' and 'hardening stage', was introduced to describe the response of PVB under dynamic compression. Through comparison with Ogden model, it was found that Mooney-Rivlin model well describes PVB compressive behavior [5].…”

Section: Introductionmentioning

confidence: 99%

“…It is highly nonlinear, time-dependent, and being capable of undergoing substantial extension. The compressive behavior of http PVB under quasi-static and dynamic loadings was exclusively studied [5,6]. The stress-strain curves at strain rates from 4 Â 10 À4 s À1 to 4 Â 10 À2 s À1 for quasi-static state and at strain rates from 700 s À1 to 4500 s À1 were obtained using conventional testing machine and Split Hopkinson Pressure Bar (SHPB) technique, respectively.…”

Section: Introductionmentioning

confidence: 99%

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The mechanical properties of Polyvinyl Butyral (PVB) at high strain rates

Zhang

Hao

Shi

et al. 2015

Construction and Building Materials

116

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h i g h l i g h t sLow-speed and high-speed direct tensile tests were performed on PVB material. Stress-strain curves were derived at strain rates from 0.008 s À1 to about 1360 s À1 . The strength was found to increase with strain rate; but PVB becomes less ductile. The testing results with available testing data were summarized and analyzed. a b s t r a c tPolyvinyl Butyral (PVB) has been largely used as an interlayer material for laminated glass to mitigate the hazard from shattered glass fragments, due to its excellent ductility and adhesive property with glass pane. With increasing threats from terrorist bombing and debris impact, the application of PVB laminated safety glass has been extended from quasi-static loading to impact and blast loading regimes, which has led to the requirement for a better understanding of PVB material properties at high strain rates. In this study, the mechanical properties of PVB are investigated experimentally over a wide range of strain rates. Firstly, quasi-static tensile tests is performed using conventional hydraulic machine at strain rates of 0.008-0.317 s À1 . Then high-speed tensile test is carried out using a high-speed servo-hydraulic testing machine at strain rates from 8.7 s À1 to 1360 s À1 . It is found that under quasi-static tensile loading, PVB behaves as a hyperelastic material and material property is influenced by loading rate. Under dynamic loading the response of PVB is characterized by a time-dependent nonlinear elastic behavior. The ductility of PVB reduces as strain rate increases. The testing results are consistent with available testing data on PVB material at various strain rates. Analysis is made on the testing data to form strain-rate dependent stress-strain curves of PVB under tension.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The mechanical properties of Polyvinyl Butyral (PVB) at high strain rates

Zhang

Hao

Shi

et al. 2015

Construction and Building Materials

116

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“…PVB, the abbreviation of polyvinyl butyral, is a polymer material with excellent adhesive property, optical clarity, toughness and flexibility [1]. Nowadays, PVB becomes the prior choice of the interlayer material in laminated safety glass, which is widely used in construction field and transportation vehicles consequently.…”

Section: Introductionmentioning

confidence: 99%

“…Theoretical study, numerical simulation, and experiment are three ways to investigate the mechanical behavior of PVB material. Theoretical studies on PVB are carried out mainly by Iwasaki et al [6] and Xu [1]. In their researches, PVB has been proven to be a material with complicated material behavior such as visco‐elasticity and rate‐dependent characteristics and its mechanical properties are represented by introducing the mass‐spring model [7], Mooney‐Rivlin model [8, 9] and Ogden model [10], respectively.…”

Section: Introductionmentioning

confidence: 99%

Systematic experimental study on mechanical behavior of PVB (polyvinyl butyral) material under various loading conditions

Liu

Sun

et al. 2012

Polymer Engineering & Sci

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The mechanical behavior of polyvinyl butyral (PVB) significantly influences crashworthiness and energy mitigation abilities of windshields in terms of pedestrian safety. In this article, mechanical characteristics of PVB are experimentally studied. First, tension and compression experiments on PVB specimen are carried out under various quasi-static loading rates. Fundamental mechanism of rate-dependent behavior is investigated. Besides, dynamic tension and compression experimental data are compared to investigate the mechanical behavior of PVB in a whole strain rate region and it is found that PVB behaves as a viscoelastic material under compressive loadings in both quasi-static and dynamic situations; however, in tension experiments, stress-strain curves of PVB under dynamic loadings are elasto-plastic while those under quasi-static loadings are visco-elastic. Considering all the unique characteristics of PVB's behavior, constitutive models are then established based on Zhu-Wang-Tang model mathematically. Further, unit volume energy absorption of every experiment in quasi-static tension and compression are calculated as well as the stress intensify factor. In addition, visco-elasticity part in the constitutive model is employed. Results may offer useful experiment data and important constitutive characteristics of PVB material to further studies of automotive crashworthiness and pedestrian protection.

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“…Subsequently, they performed tests at high strain rate using a split Hopkinson bar apparatus to obtain stress-strain curves. They then fitted a viscoelastic law to this, assuming a Mooney Rivlin hyperelastic spring to account for the nonlinearity [7]. Iwasaki and Sato identified a shift in the PVB behaviour at high strain rates [8] and they included a material model fit for the lower strain rates cases [9].…”

Section: Introductionmentioning

confidence: 99%

Determining Material Response for Polyvinyl Butyral (PVB) in Blast Loading Situations

et al. 2016

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Protecting structures from the effect of blast loads requires the careful design of all building components. In this context, the mechanical properties of Polyvinyl Butyral (PVB) are of interest to designers as the membrane behaviour will affect the performance of laminated glass glazing when loaded by explosion pressure waves. This polymer behaves in a complex manner and is difficult to model over the wide range of strain rates relevant to blast analysis. In this study, data from experimental tests conducted at strain rates from 0.01 s −1 to 400 s −1 were used to develop material models accounting for the rate dependency of the material. Firstly, two models were derived assuming Prony series formulations. A reduced polynomial spring and a spring derived from the model proposed by Hoo Fatt and Ouyang were used. Two fits were produced for each of these models, one for low rate cases, up to 8 s , and one for high rate cases, from 20 s −1 . Afterwards, a single model representing all rates was produced using a finite deformation viscoelastic model. This assumed two hyperelastic springs in parallel, one of which was in series with a non-linear damper. The results were compared with the experimental results, assessing the quality of the fits in the strain range of interest for blast loading situations. This should provide designers with the information to choose between the available models depending on their design needs.

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Experimental investigation on constitutive behavior of PVB under impact loading

Cited by 86 publications

References 25 publications

The mechanical properties of Polyvinyl Butyral (PVB) at high strain rates

The mechanical properties of Polyvinyl Butyral (PVB) at high strain rates

Systematic experimental study on mechanical behavior of PVB (polyvinyl butyral) material under various loading conditions

Determining Material Response for Polyvinyl Butyral (PVB) in Blast Loading Situations

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