Effect of anisotropy on the large strain creep behavior of composite thick-walled spherical vessels

Arya, Vinod K.

doi:10.1007/s40430-022-03746-x

Cited by 2 publications

(4 citation statements)

References 10 publications

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“…The technological problems include implementing the technology: selecting components, forming the interface, the temperature and time of curing, the humidity, pressing pressure and the belt tension when winding the products. This determines the values of the residual (initial) stresses, which, together with working stresses and sometimes without them, can cause delamination, especially in thick-walled products [18,19]. These include mechanical processing (trimming, drilling), as well as deviations from the technology: layer defects, resin-depleted areas, tape folds, air bubbles, residual lubricant, etc.…”

Section: Technologicalmentioning

confidence: 99%

A Review of Delamination Damage of Composite Materials

Huang,

Bobyr

2023

J. Compos. Sci.

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The theoretical and practical achievements in the field of the theory of strength and reliability of composite materials are discussed in a review conducted on the scientific research conducted on the effect of delamination on the reliability and quality of composites. The methodological aspects of the stability of the mechanical characteristics of composite materials under the combined action of cyclic and impact loads are examined, as are the manufacturing and processing technologies. The reasons for delamination, such as technological, manufacturing and application, free edge, joints and loads, are revealed. The influence of delamination on the bearing capacity of structural elements made of composite materials is analyzed. The mechanism of delamination growth is outlined, and the criteria and processes are defined, such as the growth of delamination cracks in a multidirectional laminated plate from a straight edge, edge delamination during plate bending, delamination in plates in the field of residual stresses, etc. The importance of taking into account the visco-plastic effect at the top of the edge crack of delamination of composite materials is emphasized. The concept of critical delamination behavior is characterized, and the issues of delamination stability are described.

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Section: Technologicalmentioning

confidence: 99%

A Review of Delamination Damage of Composite Materials

Huang,

Bobyr

2023

J. Compos. Sci.

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“…where, C 1 and C 2 are constants determined from the boundary condition of the problem. Substituting Equation (19) in Equation ( 17), one gets,…”

Section: Von Mises Criterionmentioning

confidence: 99%

“…The cylinder under consideration for creep behavior investigation is assumed to be composed of monolithic material in different studies [17][18][19][20][21]. Mostly, aluminum or its alloys are used in many engineering applications to save power from their lightweight nature, but they are susceptible to creep, which may obstruct their use in large-scale applications [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…For thick-walled FGM cylinders, the higher order Taylor series provides creep stress and strain results more accurately, while lower order Taylor series produce more accurate creep stress/strain results in thin-walled cylinder. Arya [19] studied anisotropy impact on strain creep behavior in the thick-walled composite cylinder and observed that anisotropy positively impacts the reduction in the stress, strains, and strain-rates values in comparison with corresponding values for an isotropic material and results in a longer lifespan.…”

Section: Introductionmentioning

confidence: 99%

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Creep Analysis of Rotating Thick Cylinders Subjected to External and Internal Pressure: Analytical and Numerical Approach

Es-Saheb,

Fouad

2023

Applied Sciences

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Creep analysis is crucial when dealing with thick rotating cylinders exposed to a steady load or stress at a higher temperature. These cylinders present a fundamental constituent in a variety of dynamic engineering applications, such as pressure vessels, hydraulic cylinders, gun barrels, boilers, fuel tanks, aerospace technologies, nuclear reactors, and military equipment. Thus, severe mechanical and thermal loads cause significant creep and reduce service life. Hence, the prediction of creep in such axisymmetric components, including pressure vessels, subjected to steady load at elevated temperatures is extremely important and quite a complex task. Thus, in this study, the creep behavior in a rotating thick-walled cylinder made of Al-SiCp composite subjected to constant load as well as internal and external pressures is investigated, both analytically and numerically, using FEM. A wide range of rotational speeds effect on the process is also included. The creep behavior is assumed to follow the Norton constitutive model, and for stress failure analysis, von Mises yield criteria are adopted. The effect of internal and external pressures, as well as the rotational speed on the stresses, strains, and strain rates in the cylinder, is studied and presented. Both finite element analysis (FEA) and Lame’s theory were used to determine the radial, tangential, and longitudinal displacements and corresponding stresses, as well as the equivalent Von Mises stresses and strain rate distributions in the cylinder revolving about its own axis. It is observed that with the increase of the internal pressure in the cylinder, the strain rate increases. Meanwhile, when subjecting the cylinder to both external and internal pressures, the strain rates tend to decrease. For instance, it was also found that stress and strain rates were higher for the 1000 rad/sec rotational speed of thick cylinder in comparison with lower rotational speeds of 300 and 500 rad/sec. Also, it is noticed that the variation in these values at the inner radius was more than those found at the outer radius. All results of the stresses, strains, and strain rate distributions obtained are found to be in full agreement with the published data. Furthermore, all plotted results of the stresses, strains, and strain rate distributions obtained through the analytical approach were found to be in exceptional compliance with those solutions obtained using finite element analysis (FEA).

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Effect of anisotropy on the large strain creep behavior of composite thick-walled spherical vessels

Cited by 2 publications

References 10 publications

A Review of Delamination Damage of Composite Materials

A Review of Delamination Damage of Composite Materials

Creep Analysis of Rotating Thick Cylinders Subjected to External and Internal Pressure: Analytical and Numerical Approach

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