Inertia effects in axisymmetrically deformed cylindrical shells under axial impact

Karagiozova, D.; Alves, Marcı́lio; Jones, Norman

doi:10.1016/s0734-743x(00)00028-2

Cited by 148 publications

(74 citation statements)

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“…For higher impact velocities on tubes, the simultaneous retention of axial inertia (which gives rise to elastic and plastic stress waves, i.e., loosely speaking, the early-time response) and transverse inertia (which is the principal contributor to the structural response, i.e., often called the late-time response) might become important and play a significant role during the dynamic response [26][27][28] . These more complete analyses have provided important insight into the influence of different material properties and geometrical parameters, as well as the types of boundary conditions and kinds of impact loadings, on the dynamic response.…”

Section: It Is Illustrated Inmentioning

confidence: 99%

Plasticity Methods in Protection and Safety of Industrial Plant and Structural Systems Against Extreme Dynamic Loading

Jones

2008

DSJ

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This paper provides an overview of the contributions that plastic methods of analysis can make to the protection of the public and the security of industrial plant against extreme dynamic loading events which involve explosive blast pressures or impact loadings from various projectiles. It is possible, by careful design, to absorb the external dynamic energies through large inelastic deformations of the structural members and specially designed energy-absorbing systems. Both the protection methods are examined briefly, together with some discussion on the dynamic properties of materials, including inelastic failure, and the impact perforation of ductile metal structures. Some phenomena are emphasised that are important for numerical finite-element schemes as well as theoretical methods of analysis.

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Section: It Is Illustrated Inmentioning

confidence: 99%

Plasticity Methods in Protection and Safety of Industrial Plant and Structural Systems Against Extreme Dynamic Loading

Jones

2008

DSJ

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“…From an axiomatic formulation of thermodynamics, such as found in [Callen 1960], the pressure is an intensive variable defined as minus the partial derivative of the internal energy with respect to a specific volume at constant entropy [Callen 1960, p. 31]. Therefore, the derivative in (29) is…”

Section: Gases As Peridynamic Materialsmentioning

confidence: 99%

“…Budiansky and Hutchinson [1966] have shown that tubes collapse at lower loading under dynamic compression than under static loading. In other studies, Karagiozova et al [2000] studied the inertial effects on axisymmetrically deformed cylindrical shells. Weingarten et al [1964] have experimentally quantified how the buckling coefficient varies with R/t.…”

Section: Introductionmentioning

confidence: 99%

Untitled

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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Section: Introductionmentioning

confidence: 99%

Experimental and computational evaluation of compressive response of single and hex-arrayed aluminum tubes

Nemat‐Nasser

Amini

Choi

et al. 2007

JOMMS

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We report experiments and simulations of the dynamic and quasistatic compressive response of single and hex-arrayed thick aluminum tubes. The investigation aims to further characterize how tube-based sandwich structures absorb energy. First, we study by compression tests the quasistatic buckling of single tubes of 7075 aluminum, an alloy showing sufficient ductility and plasticity to make it potentially a good choice for energy absorbing devices. The experiments show geometry-dependent buckling modes. The corresponding finite element numerical simulations correlate well and will help estimate the maximum load level, and the buckling and postbuckling responses. Second, we study the dynamic buckling of sandwiched, hex-arrayed 3003 aluminum tubes. The simulations and experimental results correlate well and show a remarkable increase in energy absorbing capacity, which is caused by the postbuckling interaction of neighboring tubes. They also show that, as the tube spacing is decreased, the overall energy absorbed increases significantly. We also simulate how varying tube length and thickness affect the buckling of the array under dynamic loading.

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Inertia effects in axisymmetrically deformed cylindrical shells under axial impact

Cited by 148 publications

References 10 publications

Plasticity Methods in Protection and Safety of Industrial Plant and Structural Systems Against Extreme Dynamic Loading

Plasticity Methods in Protection and Safety of Industrial Plant and Structural Systems Against Extreme Dynamic Loading

Untitled

Experimental and computational evaluation of compressive response of single and hex-arrayed aluminum tubes

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