The deformation and tearing of thin square plates subjected to impulsive loads—An experimental study

Nurick, G.N.; Shave, G.C.

doi:10.1016/0734-743x(95)00018-2

Cited by 250 publications

(163 citation statements)

References 12 publications

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“…The response of structural components subjected to blast loading has been the subject of considerable research effort [1][2][3][4]. Much of this research has concentrated on the response of plates to impulsive loads [5][6][7][8][9]. These studies deal with large plastic deformations retrieving experimentally the impulse and comparing with analytical and numerical calculations, also the full field response of the specimens was investigated only numerically.…”

Section: Introductionmentioning

confidence: 99%

Deformation measurements of blast loaded plates using digital image correlation and high-speed photography

Spranghers

Kakogiannis

Ndambi

et al. 2010

EPJ Web of Conferences

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Abstract. This paper presents a study on the behaviour of aluminium plates subject to close range blast loads. Measurement of the full out-of-plane displacement field is performed combining two high-speed cameras in a stereoscopic set up and the digital image correlation technique. The measured displacement fields are compared to the calculated data using two different FEM codes. A good agreement has been found between both experimental and numerical data.

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Section: Introductionmentioning

confidence: 99%

Deformation measurements of blast loaded plates using digital image correlation and high-speed photography

Spranghers

Kakogiannis

Ndambi

et al. 2010

EPJ Web of Conferences

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“…It shows that the core relative density (for a selected sandwich core topology) can be effectively used as a parameter to control the transmitted pressure, provided an adequate core thickness can be used. Experiments on impulsively loaded clamped plates reveal similar characteristics (Figure 3) Nurick and Shave 1996]. (i) At low impulse I the plates plastically bend and stretch without rupture and the plate deflection increases monotonically with I .…”

Section: Discussionmentioning

confidence: 49%

“…Experiments on impulsively loaded clamped beams have revealed a range of deformation and failure modes Nurick and Shave 2000]. At low value of impulse I , the beams plastically bend and stretch without rupture (mode I).…”

Section: Introductionmentioning

confidence: 99%

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2007

JOMMS

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See inside back cover or http://www.jomms.org for submission guidelines.Regular subscription rate: $500 a year. Polymeric materials often undergo large inhomogeneous deformations at high rates during their use in various impact-resistant energy-absorbing applications. For better design of such structures, a comprehensive understanding of high-rate deformation under various loading modes is essential. In this study, the behavior of polycarbonate was studied during tensile loading at high strain rates, using a splitcollar type split Hopkinson tension bar (SHTB). The effects of varying strain rate, overall imposed strain magnitude and specimen geometry on the mechanical response were examined. The chronological progression of deformation was captured with a high-speed rotating mirror CCD camera. The deformation mechanics were further studied via finite element simulations using the ABAQUS/Explicit code together with a recently developed constitutive model for high-rate behavior of glassy polymers. The mechanisms governing the phenomena of large inhomogeneous elongation, single and double necking, and the effects of material constitutive behavior on the characteristics of tensile deformation are presented.

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“…Experiments on impulsively loaded clamped plates reveal similar characteristics ( Figure 3) [Menkes and Opat 1973;Nurick and Shave 1996]. (i) At low impulse I the plates plastically bend and stretch without rupture and the plate deflection increases monotonically with I .…”

Section: Introductionmentioning

confidence: 63%

Dynamic shear rupture of steel plates

Nahshon

Pontin

Evans

et al. 2007

JOMMS

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Metallic sandwich panels with prismatic cores offer the potential for superior blast resistance relative to monolithic plates of equivalent areal density. However, under sufficiently high impulse, severe plastic strains can occur at the junctions of the face sheets and the core members shortly after arrival of the pressure wave but prior to significant deformation elsewhere. The potential consequence is localized shear rupture with minimal plastic dissipation. To characterize this failure mode, a combined experimentalnumerical protocol has been used to ascertain the plastic strain for dynamic shear rupture of ductile metals. The experimental component involves firing cylindrical projectiles through plates of the targeted materials and monitoring changes in projectile velocity during penetration. With appropriate combinations of plate thickness and projectile velocity, penetration occurs through propagation of an annular shear crack. In parallel, a numerical model of dynamic deformation and rupture has been employed to infer the critical strain through comparisons with projectile velocity change measurements. Experiments and analyses have been performed on both 304 stainless steel and superaustenitic AL6XN. Effects of mesh size on the resolution of the predicted strain distribution and the plastic dissipation associated with penetration are addressed.

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The deformation and tearing of thin square plates subjected to impulsive loads—An experimental study

Cited by 250 publications

References 12 publications

Deformation measurements of blast loaded plates using digital image correlation and high-speed photography

Deformation measurements of blast loaded plates using digital image correlation and high-speed photography

Untitled

Dynamic shear rupture of steel plates

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