Reduction of the stress concentration factor in a homogeneous panel with hole by using a functionally graded layer

Sburlati, Roberta; Atashipour, Seyed Rasoul; Atashipour, Seyed Abdolrahim

doi:10.1016/j.compositesb.2014.01.036

Cited by 52 publications

(12 citation statements)

References 19 publications

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“…FGMs have continuous spatial variation in microstructure through one or several directions. Thus, the advantage of smoothing the mismatch in material properties makes FGMs very useful for structures subjected to extreme loading and environmental conditions [4]. Some researchers have studied the effect of material gradation on modifying stress distribution profiles across the interface.…”

Section: Introductionmentioning

confidence: 99%

Electro-elastic analysis of a coated spherical piezoceramic sensor

Atashipour

Sburlati

2016

Composite Structures

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Section: Introductionmentioning

confidence: 99%

Electro-elastic analysis of a coated spherical piezoceramic sensor

Atashipour

Sburlati

2016

Composite Structures

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“…Sburlati [13] presented an analytical solution of the stress concentration factor around a circular hole in an isotropic homogeneous plate subjected to far-field uniaxial loading. Sburlati et al [14] obtained elastic solutions in closed form for a homogeneous plate with an FGM ring around the hole subjected to different far-field conditions, and used two different interface conditions (perfectly bonded and frictionless contact) to describe localized interface damage between the ring and the plate. The closed-form expression for the elastic and strain fields in radially FGM continua with and without circular holes was obtained by Kubair [15,16].…”

Section: Introductionmentioning

confidence: 99%

Stress field of a radially functionally graded panel with a circular elastic inclusion under static anti-plane shear loading

Shi

2015

J Mech Sci Technol

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The elastic stress field around a circular elastic inclusion in an infinite functionally graded material (FGM) panel that is subjected to a uniform static anti-plane shear loading at infinity is considered. Assuming the rigidity modulus of the FGM panel to be exponential, the analytical solutions of stress and strain distribution around the circular elastic inclusion are obtained by using the variable separation method. Due the generality of the elastic inclusion, other geometrical discontinuities, such as hole and rigid inclusion, can be seen as special cases of circular elastic inclusion when the inclusion rigidity modulus takes a suitable value. Therefore, the present solutions analytically reduce to some classical solution in some special cases. The present analytical solutions are compared with the existing exact solutions to verify them. Finally, the effects of the relative inclusion rigidity modulus ratio and the inhomogeneous rigidity modulus ratio on the stress distribution and the concentration factor are systematically investigated.

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“…Analytical and numerical analysis of structures consisted of FGM coating layers has been recently studied [8][9][10][11][12][13]. In most of them, deformation of FGM coating on homogeneous substrate is investigated in the framework of the elasticity theory where the material composition is assumed to vary smoothly based on some mathematical models including linear, exponential and power functions.…”

Section: Introductionmentioning

confidence: 99%

Exact elastic analysis of a doubly coated thick circular plate using functionally graded interlayers

Sburlati

Atashipour

2015

Arch Appl Mech

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Development of new coating systems has been an important issue over the years with the motivation\ud of extending the effective life of mechanical elements. For this intent, functionally graded materials have\ud been recently used in a variety of applications as promising replacements for conventional coatings. In the\ud present study, a hybrid coating system taking advantage of graded composition concept is proposed to enhance\ud the through-thickness stress distribution within a double-sided coated circular thick homogeneous plate. The\ud coating system is composed of two main layers: an external homogeneous layer and an interlayer between\ud the external layer and the plate, with graded material composition. All layers are modeled within the context\ud of three-dimensional elasticity theory, and an elasto-static solution is obtained by using suitable potential\ud functions.Accuracy and reliability of the proposed analysis is investigated by comparison with results obtained\ud in the literature, as well as with the results of a three-dimensional finite element simulation. Comparative study\ud shows the inherent advantages of the present hybrid coating system over the conventional homogeneous coating\ud or the functionally graded coating layers

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Reduction of the stress concentration factor in a homogeneous panel with hole by using a functionally graded layer

Cited by 52 publications

References 19 publications

Electro-elastic analysis of a coated spherical piezoceramic sensor

Electro-elastic analysis of a coated spherical piezoceramic sensor

Stress field of a radially functionally graded panel with a circular elastic inclusion under static anti-plane shear loading

Exact elastic analysis of a doubly coated thick circular plate using functionally graded interlayers

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