Numerical and experimental studies of polyurethane foam under impact loading

Kasparek, Eva; Zencker, Uwe; Scheidemann, Robert; Völzke, Holger; Müller, Karsten

doi:10.1016/j.commatsci.2010.11.025

Cited by 20 publications

(11 citation statements)

References 5 publications

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“…37. In most cases, these analytical and numerical models are used without consideration of strain-rate or shock effect, which are acceptable in some circumstances, but such neglect may introduce unacceptable errors for some strain-rate sensitive cellular materials [125] (see Sections 2.2 and 2.3 for observed loading rate effect). In particular, high accuracy of prediction for dynamic compression is strictly required in some safety critical applications, e.g.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…In particular, high accuracy of prediction for dynamic compression is strictly required in some safety critical applications, e.g. nuclear components [125,286]. Fig.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Extensive experimental test data are needed to establish the rate-dependence of yield surface of a strain-rate sensitive cellular material. German BAM [125] identified significant discrepancies between the numerical simulations neglecting strain-rate effect and the actual dynamic behaviour of impact limiters made of polyurethane foam for transport and storage of highly radioactive waste. They thus launched an ENREA project comprising experimental tests of over 1000 specimens for wood, polyurethane foam and polymer concrete under compression with loading speed ranging from 0.02 mm/s to 3 m/s.…”

Section: Accepted Manuscript 87mentioning

confidence: 99%

“…38. Comparison between experiment and simulation incorporating strain-rate effect in plasticity models for polymer foams: (a) load-displacement curves [125]; (b) stress-strain curves [122].…”

Section: Accepted Manuscript 87mentioning

confidence: 99%

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Dynamic compressive behaviour of cellular materials: A review of phenomenon, mechanism and modelling

Sun

2018

International Journal of Impact Engineering

317

114

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Highlights  Dynamic plastic properties, deformation modes, constitutive relations and shock states are described  Experimental observations in the quasi-static, transitional dynamic and shock regimes are presented  Mechanisms associated with inertia, enclosed gas and microscopic strain-rate sensitivity of base material are elucidated  Mesoscopic modelling and its applications are discussed with regard to idealised and realistic cell structures  Macroscopic continuum-based modelling for compression-dominated loading is summarised and commented

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Section: Accepted Manuscriptmentioning

confidence: 99%

“…In particular, high accuracy of prediction for dynamic compression is strictly required in some safety critical applications, e.g. nuclear components [125,286]. Fig.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscript 87mentioning

confidence: 99%

Section: Accepted Manuscript 87mentioning

confidence: 99%

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Dynamic compressive behaviour of cellular materials: A review of phenomenon, mechanism and modelling

Sun

2018

International Journal of Impact Engineering

317

114

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“…The plateau region is mainly related to the bending, crushing and eventually fracture, of the cell walls. The material starts to densify when all the cells are crushed and the behaviour approaches the behaviour of a monolithic material [19,42,54].…”

Section: Polyurethane Foam As An Energy Absorbing Materialsmentioning

confidence: 96%