Arbitrarily laminated, anisotropic cylindrical shell under internal pressure

Chaudhuri, Reaz Z.; Balaraman, K.; Kunukkasseril, V.X.

doi:10.2514/3.9534

Cited by 44 publications

(6 citation statements)

References 7 publications

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“…According to Hill, the most important AE qualification parameters for the structural integrity evaluation of Kevlar-epoxy motor chambers seems to be event amplitude, energy, and duration. Chaudhuri et al [24] presented closed-form solution for an asymmetrically laminated anisotropic cylindrical shell of finite length under uniform internal pressure within the framework of classical lamination theory. Using the equations of equilibrium for a circular cylindrical shell subjected to uniform internal pressure, they derived a fourth order governing partial differential equation in terms of radial displacement and solved it for obtaining strains, curvature changes, and surface parallel stresses.…”

Section: Burst Pressure Prediction On Composite Pressure Vesselsmentioning

confidence: 99%

Burst Pressure Prediction of Composite Pressure Chambers Using Acoustic Emission Technique: A Review

Joselin

Chelladurai²

2011

J Fail. Anal. and Preven.

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Over the last four to five decades, applications of fiber-reinforced plastics (FRP) have seen tremendous growth. In spite of the complexity of their behavior, development of composite pressure chambers has significantly contributed to the continuing increase in the strength-to-weight ratio of a significant amount of hardware and testing techniques to evaluate that hardware are continually being developed. This article presents an overview of the developments toward burst pressure prediction of FRP pressure chambers using acoustic emission (AE) technique. Burst strength prediction methods and related research in this context are also briefly discussed. The historical background of FRP pressure chamber/vessel testing using AE is also covered in this review.

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Section: Burst Pressure Prediction On Composite Pressure Vesselsmentioning

confidence: 99%

Burst Pressure Prediction of Composite Pressure Chambers Using Acoustic Emission Technique: A Review

Joselin

Chelladurai²

2011

J Fail. Anal. and Preven.

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“…It is interesting to point out here that there are two types of bending-stretching coupling in the TSDT: (i) Third-order bending-stretching, which arises out of non-vanishing E ij 's, that can only be captured by the TSDT, and (ii) First-order bending-stretching coupling, caused by non-vanishing B ij 's, which is generally covered by all laminated shell theories. The latter type has been investigated in-depth in the context of axi-symmetric deformation of thin [119][120][121][122][123] as well as moderately thick [124][125][126] variously laminated cylindrical shells, in addition to static and dynamic tests on flat laminates [62,106,127]. It is further noteworthy in this context that the bending-stretching coupling may either cause surface-parallel compression ("beam-column" effect) or surface-parallel stretching (called "tie-bar" effect) in a panel subjected to bending.…”

Section: Normalized Central Momentmentioning

confidence: 99%

Effects of Surface-Parallel Edge Restraints and Inter-laminar Shear on the Responses of Doubly Curved General Cross-Ply Panels

Chaudhuri¹,

Oktem²

2022

J Aerosp Eng Mech

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This study presents first a relatively lesser studied topic of the role played by surface-parallel restraints in determining the response of simply supported thick to thin doubly curved cross-ply panels of rectangular plan-form, modeled using a third order shear deformation theory, quantified by way of the difference between full and absent surface-parallel edge restraints. Mathematically speaking, this corresponds to the difference between complementary solutions to mixed boundary-value problems, resulting from two extreme sets of surface-parallel restraints. Of special interest is the threeway interaction of the membrane action due to curvature with the surface-parallel boundary constraint as well as the higher-order (resp. first-order) bending-stretching coupling producing beam-column/tie-bar type softening/hardening effects in thick (respectively thin) asymmetric cross-ply panels. Comparison with other popular shear deformation theories, such as the layer-wise constant shear-angle theory or zig-zag theory and first order shear deformation theory, also constitutes an important focus of this investigation. Results for cross-ply plates are regenerated in order to show the severity of the effect of curvature, especially in the thin shell regime.

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“…Equation ( 6) and the more general forms presented by [Bushnell 1984], are sometimes referred to as the Love-Timoshenko strain-displacement equations. Justification for this terminology is given by [Chaudhuri et al 1986].…”

Section: Kinematics and Stress-strain Relationsmentioning

confidence: 99%

Untitled

2007

JOMMS

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The behavior of a rapidly moving transient crack in functionally graded materials (FGMs) is investigated theoretically and experimentally. First, a systematic theoretical analysis is presented for the development of the transient elastodynamic local stress, strain, and displacement field expansions near a growing mixed mode crack tip in FGMs. The crack propagation direction is assumed to be inclined to the direction of the property variation. The displacement potential approach in conjunction with asymptotic analysis is utilized to derive explicit expressions for stress, strain, and in-plane displacement fields. The transient crack growth is assumed to include processes in which both the crack tip speed and the dynamic stress intensity factor are differentiable functions of time. These stress fields are used to generate the contours of constant maximum shear stress (isochromatics fringes) and the effect of transient crack growth on these contours is discussed. To further understand the transient crack growth behavior, a series of dynamic fracture experiments are performed with functionally graded material fabricated inhouse. The phenomenon of transition from a static crack to a dynamic mode I crack is examined in these experiments. The full-field stress data around the crack is recorded using dynamic photoelasticity and high-speed digital photography. Due to opaqueness of FGMs, birefringent coatings are employed to obtain the full-field isochromatics around the crack tip. The stress field expansions developed in the first part of the study are used to interpret the experimental observations. The results of the experiments showed that the higher order transient expansion provides an accurate representation of crack tip fields under severe transient conditions.

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Arbitrarily laminated, anisotropic cylindrical shell under internal pressure

Cited by 44 publications

References 7 publications

Burst Pressure Prediction of Composite Pressure Chambers Using Acoustic Emission Technique: A Review

Burst Pressure Prediction of Composite Pressure Chambers Using Acoustic Emission Technique: A Review

Effects of Surface-Parallel Edge Restraints and Inter-laminar Shear on the Responses of Doubly Curved General Cross-Ply Panels

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