Impact response and damage in laminated composite cylindrical shells

Krishnamurthy, K.S.; Mahajan, Puneet; Mittal, Ravi Kant

doi:10.1016/s0263-8223(02)00238-6

Cited by 86 publications

(42 citation statements)

References 26 publications

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“…Although the above equation was proposed in [Choi et al 1991] for the case of line-loading impact, several further investigators [Choi and Chang 1992;Pradhan and Kumar 2000;Her and Liang 2004;Krishnamurthy et al 2001;Krishnamurthy et al 2003;Kumar et al 2007] assumed this equation to be equally applicable to point-nose impact. However, the present author is of the view that for point-nose impact on curved laminates, the in-plane shear stress τ x y as found in Hashin's matrix failure criterion [1980] must be incorporated in (19) for more accurate estimation.…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…Krishnamurthy et al [2001] used a shell element based on the Mindlin-Reissener assumptions for transverse shear deformation in their parametric study of laminated cylindrical composite shells. In another paper [Krishnamurthy et al 2003], the authors extended their work on the impact response of a laminated composite cylindrical shell as well as a full cylinder by incorporating the classical Fourier series method into the finite element formulation and also predicted impact-induced damage deploying the semiempirical damage prediction model of [Choi and Chang 1992]. According to the authors, the Fourier series method, which gives information regarding the natural frequencies of vibration of the impacted structure, provided a proper basis for adopting the appropriate size of the analysis time step.…”

Section: Introductionmentioning

confidence: 98%

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Analysis of impact response and damage in laminated composite shell involving large deformation and material degradation

Kumar

2008

JOMMS

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A nonlinear finite element analysis of impact response and impact-induced damage in curved composite laminates subjected to transverse impact by a foreign object is carried out. An eight-noded isoparametric quadrilateral shell element incorporating a nonlinear strain displacement relation due to large deflection is developed based on the total Lagrangian approach. The nonlinear system of equations is solved using a Newton-Raphson incremental-iterative method. Example problems of graphite/epoxy cylindrically curved laminates with different curvature are considered and the influence of geometrical nonlinearity on the impact response and the resulting damage is demonstrated. The concurrent effect of material degradation due to impact damage is also investigated.

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Section: Mathematical Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Analysis of impact response and damage in laminated composite shell involving large deformation and material degradation

Kumar

2008

JOMMS

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“…Several researchers have studied the effect of lay-up on the impact properties of composite shell-type structure. Krishnamurthy et al 14 3 /255 3 /55/255/0/90] was of the best impact resistance. As another thin-walled structure, CFRP square tube structure can be inspired by these former investigations in the lay-up design.…”

Section: Introductionmentioning

confidence: 99%

Research on carbon fiber–reinforced plastic bumper beam subjected to low-velocity frontal impact

Liu

Zhang

et al. 2015

Advances in Mechanical Engineering

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Lightweight and safety performance of automobiles are two important factors for automobile designs. In this article, a research on lightweight and crashworthiness of automotive bumper has been conducted. The carbon fiber-reinforced plastic bumper beam is considered to replace the traditional high-strength steel one. The low-velocity impact finite element simulations for the above two bumper beams are performed via LS-DYNA. Furthermore, the energy absorption capabilities and dynamic response characteristics of the carbon fiber-reinforced plastic bumper beam are investigated and compared with the steel one. The results show that the carbon fiber-reinforced plastic bumper beam is of the better energy absorption capabilities and dynamic response characteristics than those of the steel one; the weight has decreased remarkably close to 50%. Meanwhile, the effect of lay-up and wall thickness on the crashworthiness of the carbon fiber-reinforced plastic bumper beam under low-velocity impact is also studied in this article to select appropriate design schemes.

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“…Nomenclature i E m effective elastic modulus of the ith impactor (m=j) and target structure (m=s) Analytical and finite element methods were considered for impact response of a laminated composite cylindrical shell by Krishnamurthy et al (2003).In analytical method, the solution was obtained by means of an alternative numerical procedure incorporating the non-linear Hertz contact law. Such method also provided information as the natural frequencies of impacted shell which helped in obtaining appropriate mesh and time step sizes for finite element method.A new equivalent three-degree-of-freedom (TDOF) spring-mass-damper (SMD) model and a new analytical procedure about impact were presented by K. Malekzadeh et al (2006), which predicted the effect of low velocity impact on sandwich panels with soft/stiff flexible core.…”

Section: Symbols and Abbreviationsmentioning

confidence: 99%

High Order Impact Elastic Analysis of Circular Thick Cylindrical Sandwich Panels Subjected to Multi-mass Impacts

Fard

Ghorghabad

Azarnia

et al. 2015

Lat. Am. j. solids struct.

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This study dealt with the dynamic model of composite cylindrical sandwich panels with flexible cores and simply supported boundary conditions under low velocity impacts of multiple large or small masses using a new improved higher order sandwich panel theory (IHSAPT). In-plane stresses were considered for the core and face sheets. Formulation was based on the first order shear deformation theory for the composite face sheets and polynomial description of the displacement fields in the core that was based on the second Frostig's model. Fully dynamic effects of the soft core and face-sheets were considered in this investigation. Impacts were assumed to occur simultaneously and normally over the top facesheet with arbitrarily different masses and initial velocities. The contact forces between the panel and impactors were treated as the internal forces of the system. In this paper, nonlinear contact stiffness was linearized with a newly presented improved analytical method. Numerical results of the mentioned structures were compared with finite element model using ABAQUS code.

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Impact response and damage in laminated composite cylindrical shells

Cited by 86 publications

References 26 publications

Analysis of impact response and damage in laminated composite shell involving large deformation and material degradation

Analysis of impact response and damage in laminated composite shell involving large deformation and material degradation

Research on carbon fiber–reinforced plastic bumper beam subjected to low-velocity frontal impact

High Order Impact Elastic Analysis of Circular Thick Cylindrical Sandwich Panels Subjected to Multi-mass Impacts

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