Tension testing of polycarbonate at high strain rates

Fu, Shunqiang; Wang, Yang; Wang, Yu

doi:10.1016/j.polymertesting.2009.06.002

Cited by 72 publications

(25 citation statements)

References 17 publications

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“…17 has this point of the stress strain curve circled for clarification. This instability stress point showed an increase with the strain rate and good agreement with published engineering stress-strain values from both Cao [3] and Fu [7] as shown in Fig. 17.…”

Section: Instability Stress In Pcsupporting

confidence: 88%

“…Modulus values for PC at low strain rate showed good agreement to those published by Cao [3] and Fu [7] as well.…”

Section: Modulussupporting

confidence: 87%

“…Chen, Lu and Cheng [2] developed a threaded specimen for loading of PMMA in tension at high strain rates. This threaded design was used by both Fu et al [3] and Sarva et al [4] for experiments on PC, and in a…”

Section: Introductionmentioning

confidence: 99%

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The Rate Dependent Tensile Response of Polycarbonate and Poly-methylmethacrylate

Foster¹,

Love

Kaste

et al. 2015

J. dynamic behavior mater.

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The tensile mechanical response of polycarbonate and polymethyl-methacrylate is investigated across a range of strain rates from 0.001 to 1600 s -1 . Traditional standard ASTM tensile experiments are limited to low strain rates and do not give quantitative data for plastic behavior for strain softening materials. In this study, a novel specimen and gripping geometry is designed and verified to mitigate wave reflections present in previous high strain rate tensile experiments. Digital image correlation is used to extract local deformation measurements, and a Kolsky bar technique typically used for fiber experiments is adapted for soft polymers. The insights gathered in this study will provide a further step toward a high fidelity material model for both ductile and brittle polymers.

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Section: Instability Stress In Pcsupporting

confidence: 88%

“…Modulus values for PC at low strain rate showed good agreement to those published by Cao [3] and Fu [7] as well.…”

Section: Modulussupporting

confidence: 87%

See 1 more Smart Citation

The Rate Dependent Tensile Response of Polycarbonate and Poly-methylmethacrylate

Foster¹,

Love

Kaste

et al. 2015

J. dynamic behavior mater.

View full text Add to dashboard Cite

show abstract

“…Indeed there is an increase of hardening rate around 10 3 s -1 as observed in other solids [78]. For PC, data exists for not only compressive but tensile strength as a function of strain rate [79,80]. It will be seen that tensile approach compressive strengths at the highest strain rates.…”

Section: The Limits Of Yieldmentioning

confidence: 53%

On the Shock Response of Polymers to Extreme Loading

Bourne

2016

J. dynamic behavior mater.

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This paper reviews polymer response to shock and discusses how plastics behave differently depending on the strain rate applied. The author uses polyethylene, polytetrafluroethylene, polycarbonate and epoxy as example materials. It is suggested that there are two distinct regimes of polymer response corresponding to low and high shock pressures (weak and strong shock regimes) that must be considered separately. Above a high pressure threshold it is proposed that polymers homogenize to carbon-containing structures which behave similarly. Further, the yield stress of a polymer volume element asymptotes to the theoretical strength of the material as volume shrinks to zero. It is suggested that these two behaviours reflect the same physics and this feature is common to the condition identified earlier for crystalline materials.

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“…Therefore, it is needed to characterize the impact mechanical behavior of polymeric materials. To date, the impact compressive [1][2][3][4], tensile [5][6][7][8] and torsional [7,9] stress-strain properties of several polymers have been determined with the conventional [10] or modified split Hopkinson pressure bar (SHPB). The effects of strain rate and temperature on the compressive characteristics of several polymers were examined using a drop-weight apparatus [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

High strain-rate compressive behavior and constitutive modeling of selected polymers

Nakai

Yokoyama

2012

EPJ Web of Conferences

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Abstract. The present paper deals with constitutive modeling of the compressive stress-strain behavior of selected polymers at strain rates from 10 −3 to 10 3 /s using a modified Ramberg-Osgood equation. High strain-rate compressive stress-strain curves for four different commercially available extruded polymers are determined on the standard split Hopkinson pressure bar. The low and intermediate strain-rates compressive stress-strain relations are measured in an Instron testing machine. The five parameters for the modified Ramberg-Osgood equation are determined by fitting to the experimental compressive stress-strain data using a least-squares fit. The compressive stress-strain curves at three different strain rates derived from the modified Ramberg-Osgood models are compared with the experimental results. It is shown that the compressive stress-strain behavior during loading process can be successfully predicted by the modified Ramberg-Osgood equation.

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Tension testing of polycarbonate at high strain rates

Cited by 72 publications

References 17 publications

The Rate Dependent Tensile Response of Polycarbonate and Poly-methylmethacrylate

The Rate Dependent Tensile Response of Polycarbonate and Poly-methylmethacrylate

On the Shock Response of Polymers to Extreme Loading

High strain-rate compressive behavior and constitutive modeling of selected polymers

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