Static and Dynamic Analysis of Pressure Vessels With Various Stiffeners

Kumar, A. Eswara; Santosh, R. Krishna; Teja, S. Ravi; Abishek, E.

doi:10.1016/j.matpr.2017.12.082

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…As for the study of mechanical properties of composite cylinders, strength analysis is the research basis to ensure the normal operation of cylinders under working pressure, and many scholars have conducted a lot of research in this respect [42][43][44][45][46][47][48][49][50][51]. Among them, Hocine et al [31] conducted an experimental and analytical study of the cylindrical part of a fiber-wound reinforced metal container under internal pressure.…”

Section: Introductionmentioning

confidence: 99%

“…Magnucki K et al [48] analyzed the strength of the dished heads of atypical pressure vessels under the condition of eliminating the edge effect arising at the joint of the cylindrical shell and the dished head. Kumar E et al [49] used Ansys to model and analyze different stiffener designs in pressure vessels and recommended the best stiffener design by considering factors such as specific structural stiffness, von mises stress, weight and total deformation. Wang et al [50] studied the stress distribution law of an aluminum alloy liner and wound composite layer under the conditions of autofrettage, zero pressure, working pressure, hydrostatic test pressure and minimum burst pressure.…”

Section: Introductionmentioning

confidence: 99%

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Strength and Failure Analysis of Fiber-Wound Composite Gas Cylinder via Numerical Simulation

Wu,

Yang,

Zhou

2024

Materials

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Based on the classical grid theory and related regulations, a structure model of a fiber-wound composite gas cylinder was designed in this paper. Based on the design results, a finite element model of a fully wound composite cylinder of an aluminum alloy inner liner with a working pressure of 35 MPa was established based on the ABAQUS software, and its stress distribution under working pressure and minimum burst pressure was analyzed. According to engineering experience, the pressure tolerance of composite cylinders can be improved by proper autofrettage pressure before working pressure, so the influence of autofrettage pressure was analyzed in this paper. The optimum autofrettage pressure was selected by setting the autofrettage gradient, and damage analysis was carried out on the cylinder with nominal working pressure of 35 MPa based on the Hashin failure criterion. The results show the initial damage sequence: matrix stretching occurs before the fiber stretching, and the damage generally starts from the spiral-wound layer. The tensile damage first appears in the transition section between the head and the barrel body, and the damage of the spiral-wound layer develops from the inner layer of the wound layer to the outer layer, while the damage of the circumferentially wound layer develops from the outer layer to the inner layer.

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