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1

Jafari, Mohammad, and Mohammad Jafari. "Effect of hole geometry on the thermal stress analysis of perforated composite plate under uniform heat flux." Journal of Composite Materials 53, no. 8 (2018): 1079–95. http://dx.doi.org/10.1177/0021998318795279.

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The presence of holes in composite plates subjected to a uniform heat flux induces thermal stresses. Hole geometry is one of the important parameters in the stress distribution in perforated composite plates. In this study, using the two-dimensional thermoelastic theory, and on the basis of the Lekhnitskii' complex variable technique in steady-state condition, stress distribution around holes with different shapes in an infinite composite plate under uniform heat flux is investigated. Using a conformal mapping function, the thermal stress analysis of an infinite plate with a circular hole unde
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2

Kumar, R. Ramesh, S. Jose, and G. Venkateswara Rao. "Analytical Solution for W-N Criteria for the Prediction of Notched Strength of an Orthotropic Shell." Journal of Applied Mechanics 68, no. 2 (2000): 344–46. http://dx.doi.org/10.1115/1.1320452.

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Analytical solution for the tangential stress distribution ahead of a hole is needed for the theoretical prediction of notched strength of brittle laminate using the well-known W-N criteria. In the present study, tangential stress distribution in an orthotropic circular cylindrical shell under uniaxial loading with a circular hole is obtained intuitively with the use of a stress function. A good agreement is obtained for the stresses around and ahead of the circular hole in 0deg4±30degs and 90 deg laminates with the finite element results.
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3

Mohan, Pradeep, and R. Ramesh Kumar. "A Non-Singular Analytical Technique for Reinforced Non-Circular Holes in Orthotropic Laminate." International Journal of Applied Mechanics and Engineering 25, no. 1 (2020): 92–105. http://dx.doi.org/10.2478/ijame-2020-0007.

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AbstractThe intricacy in Lekhnitskii’s available single power series solution for stress distribution around hole edge for both circular and noncircular holes represented by a hole shape parameter ε is decoupled by introducing a new technique. Unknown coefficients in the power series in ε are solved by an iterative technique. Full field stress distribution is obtained by following an available method on Fourier solution. The present analytical solution for reinforced square hole in an orthotropic infinite plate is derived by completely eliminating stress singularity that depends on the concept
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4

Hidayat, Syarif, Bambang K. Hadi, Hendri Syamsudin, and Sandro Mihradi. "Stress-Distribution around Pin-Loaded Hole for Orthotropic Laminates." Applied Mechanics and Materials 842 (June 2016): 53–60. http://dx.doi.org/10.4028/www.scientific.net/amm.842.53.

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Stresses were calculated for orthotropic laminate plate loaded by a frictionless pin in a circular hole of the same diameter. These calculations were based on finite-element analysis for five laminates; 00, [±450]s, [00/900]s,[00/±450]s, and quasi-isotropic [00/±450/900]s. stress distribution, based on nominal bearing stress, were determined for wide ranges of the ratios of width to diameter and edge distance to diameter. Orthotropic had a significant influence on both the magnitude and location of the maximum tensile stress concentration on the boundary of the hole. The laminates with 00 plie
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5

Pazand, Kamran, and Younes Alizadeh. "Apply Artificial Neural Networks to Estimate Stress Distribution around Holes Edge in Composites." Advanced Materials Research 490-495 (March 2012): 3105–8. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.3105.

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The purpose of this paper is to estimate the fast determination of stress distribution around a circular hole in symmetric composite laminates under in-plane loading. For this purpose calculation of stress values in the composite plate around edge holes in different plies position for a finite number of input data sets using the Lekhnitskii expressions and code program. The resulting data would then be used to train artificial neural networks (ANN) which would be able to predict –accurately enough- those quantities throughout the composite plate body for any given input value in any position p
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6

Lee, Eung J., and Eric C. Klang. "Stress Distribution in an Edge-Stiffened Semi-infinite Elastic Plate Containing a Circular Hole." Journal of Applied Mechanics 59, no. 4 (1992): 789–95. http://dx.doi.org/10.1115/1.2894044.

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An edge-stiffened semi-infinite elastic plate containing a circular hole under tension at infinity has been studied using a conformal mapping technique. Melan ’s stiffener condition in Cartesian coordinates has been newly formulated as a resultant shear stress condition in bipolar coordinates. The solution is sought in series form, and by truncating the system of equations, it is numerically solved. Pertinent stress distributions are examined to illustrate the roll of the stiffener under the presence of a circular hole near the straight edge. It has been concluded that the stiffener contribute
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7

Mazin, V. A., V. L. Mikhaylova, and L. G. Sukhomlinov. "Transverse compression of a two-layered elastic plane with a circular hole on the border between layers." Izvestiya MGTU MAMI 9, no. 4-4 (2015): 106–10. http://dx.doi.org/10.17816/2074-0530-67079.

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The results are presented on the stress distribution in a transversally compressed two-layered elastic plane with a circular hole on the border between layers, received by using a variational fi- nite-difference procedure for solving plane elastic problems for the holed rectangular domains. The effects of the layers' elastic constants on the level of stresses around the hole are examined.
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8

Zhang, Shu, and Lei Meng. "Single Crystal Alloy on the Creep Behavior of Holes in Three-Dimensional Finite Element Simulation." Advanced Materials Research 462 (February 2012): 61–64. http://dx.doi.org/10.4028/www.scientific.net/amr.462.61.

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Based on finite element Method a dynamic mathematical model is established, and the simulation of stress distribution around the defects of single crystal nickel-based superalloysis also established with ANSYS. Results show that the creep lifetimes and plasticity of the single crystal nickel based superalloys are obviously decreased by microstructure defects. During high temperature creep, the stress isoline near the holes region displays the feature of the acetabuliform distribution, and possesses the bigger stress value at 45 angle direction relative to the applied stress axis. That results
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9

Glazov, A. L., N. F. Morozov, and K. L. Muratikov. "Laser photoacoustic evaluaion of residual stresses in metal plates with a hole." Доклады Академии наук 484, no. 3 (2019): 277–80. http://dx.doi.org/10.31857/s0869-56524843277-280.

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The nature of the change in the photoacoustic signal around the hole in samples of duralumin is studied. A com- parison of the experimental results with the solution of the classical problem for stress distribution around a circular hole in a prestressed plate is made. A good correspondence between the behavior of the photoacoustic signal with piezoelectric recording and the distribution of stresses around the hole is demonstrated. The possibility of estimating the internal stresses by the photoacoustic method in combination with the hole drilling method is shown.
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10

Глазов, А. Л., та К. Л. Муратиков. "Диагностика остаточных напряжений в биметаллических пластинах алюминий-сталь с использованием лазерного ультразвука и зондирующего отверстия". Журнал технической физики 46, № 23 (2020): 33. http://dx.doi.org/10.21883/pjtf.2020.23.50346.18435.

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The character of changes in laser photoacoustic signals near small-diameter holes in layers of aluminum and steel in a bimetallic plate obtained by hot rolling is investigated. The experimental results are compared with the solution of the classical Kirsch problem for stress distribution around a circular hole in a prestressed material. The possibility of assessing internal stresses by a laser photoacoustics in combination with the hole drilling method in industrial bimetallic plates is shown.
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11

Wu, Shunchuan, Miaofei Xu, Yongtao Gao, Shihuai Zhang, and Fan Chen. "Analytical solution and numerical verification for the pressure-relief method of a circular tunnel." Engineering review 38, no. 3 (2018): 338–51. http://dx.doi.org/10.30765/er.38.3.11.

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This paper presents an elastic analytical solution to a circular tunnel with releasing slots at high stress areas near the hole by using a conformal mapping method and the complex variable theory. Compared to the original stress distribution around the circular hole, the releasing effect on elastic stresses is evaluated. After grooving slots, low stress area is generated where the high stress concentration is located. This is agreeable with what was predicted by the finite difference FLAC2D. Besides, displacements are obtained along the periphery of the released hole and are in accordance with
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12

Song, Sam Hong, and Cheol Woong Kim. "The Fatigue Crack and Delamination Behavior on the Fuselage-Wing Intersection Containing Variable Notches." International Journal of Modern Physics B 17, no. 08n09 (2003): 1540–46. http://dx.doi.org/10.1142/s0217979203019290.

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The delamination and the fatigue crack propagation behavior in aramid fiber reinforced metal laminates(AFRMLs) containing a saw-cut and circular hole such as the fuselage-wing intersection was investigated. The fatigue crack propagation in aluminum layer is accompanied with the delamination between aluminum layer and fiber layer. The delamination deteriorates the fiber bridging mechanism in the crack tip of AFRMLs. Therefore, this study evaluates the stress distribution of AFRMLs containing a saw-cut and circular hole using the Average Stress Criterion (ASC) model. The delamination zone was ob
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13

Firoozbakhsh, K., and M. Aleyaasin. "The Effect of Stress Concentration on Bone Remodeling: Theoretical Predictions." Journal of Biomechanical Engineering 111, no. 4 (1989): 355–60. http://dx.doi.org/10.1115/1.3168391.

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Theoretical predictions of internal bone remodeling around an elliptical hole are studied. The internal remodeling theory due to Cowin and Hegedus is employed. The bone is modeled as an initially homogeneous adaptive elastic plate with an elliptical hole under a superposed steady compressive load. It is shown that there will exist a final inhomogeneous remodeling distribution around the hole that will disappear away from the hole. The remodeling is such that the compressive stress concentration causes the bone structure to evolve to one of greater density and stiffer elastic coefficients. The
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14

Kelly, P. A., D. A. Hills, and D. Nowell. "The Stress Concentration Produced by a Hole near an Interface or Joint." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 207, no. 4 (1993): 239–46. http://dx.doi.org/10.1243/pime_proc_1993_207_124_02.

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Solutions are presented for the stress concentration arising in bonded dissimilar elements weakened by a circular hole. The influence of both of the Dundurs constants (which quantify the mismatch in elastic properties of the two materials) is presented, and it is shown that the stress concentration produced is greater than that produced in an infinite body if the hole exists in the stiffer medium, and vice versa. The method of solution adopted is the distribution of dislocations around the periphery of the hole.
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15

Abdalla, Hassan Mohamed Abdelalim, Daniele Casagrande, and Francesco De Bona. "Analysis of Stress Concentration in Functionally Graded Plates with Linearly Increasing Young’s Modulus." Materials 16, no. 21 (2023): 6882. http://dx.doi.org/10.3390/ma16216882.

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In this article, the strain and stress analyses of functionally graded plates with circular holes that are subject to a uniaxial far-field traction load are analytically considered. The Young’s modulus is assumed to vary linearly along the radial direction around the hole. The adoption of such a type of inhomogeneity variation can be justified as follows. Firstly, and among all the possible variations of stiffness, the linear one is indeed the simplest inhomogeneity distribution. Surprisingly however, according to our knowledge extent, the associated elastic fields were not yet addressed in th
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16

Song, Kun, Hao-Peng Song, Peter Schiavone, and Cun-Fa Gao. "The effects of surface elasticity on the thermal stress around a circular nano-hole in a thermoelectric material." Mathematics and Mechanics of Solids 24, no. 10 (2019): 3156–66. http://dx.doi.org/10.1177/1081286519837315.

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We analyze the contribution of surface elasticity and electric current density on the thermal stress distribution around a circular nano-hole in a thermoelectric material. Using complex variable methods, we obtain closed-form solutions describing the corresponding thermoelastic fields in the vicinity of the nano-hole. Our results indicate that the effect of surface elasticity is to generate significant normal and shear stresses on the boundary of the hole, allowing for the ability to either suppress or enhance hoop stress depending on the sign of the corresponding surface material constant. In
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17

Özaslan, Emre, Ali Yetgin, and Bülent Acar. "Stress concentration and strength prediction of 2×2 twill weave fabric composite with a circular hole." Journal of Composite Materials 53, no. 4 (2018): 463–74. http://dx.doi.org/10.1177/0021998318785994.

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Stress concentration and strength prediction of 2 × 2 twill weave carbon fiber reinforced composite specimens with different hole sizes are investigated on numerical and analytical basis. Stress distribution around the hole is obtained using Lekhnitskii’s model together with Tan’s finite width correction factor and also finite element analysis. Validity of Lekhnitskii’s formula together with Tan’s correction is demonstrated for 2 × 2 twill weave composites with different w/d ratios. Tan’s correction factor is compared with finite element analysis results at a characteristic distance away from
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18

Chaleshtari, Mohammad Hossein Bayati, Mohammad Jafari, Hadi Khoramishad, and Eduard-Marius Craciun. "Mutual Influence of Geometric Parameters and Mechanical Properties on Thermal Stresses in Composite Laminated Plates with Rectangular Holes." Mathematics 9, no. 4 (2021): 311. http://dx.doi.org/10.3390/math9040311.

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In this research, the mutual influence of the mechanical properties and geometric parameters on thermal stress distribution in symmetric composite plates with a quasi-rectangular hole subjected to uniform heat flux is examined analytically using the complex variable technique. The analytical solution is obtained based on the thermo-elastic theory and the Lekhnitskii’s method. Furthermore, by employing a suitable mapping function, the solution of symmetric laminates containing a circular hole is extended to the quasi-rectangular hole. The effect of important parameters including the stacking se
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19

Zhou, Yadong, and Qingguo Fei. "Evaluation of opening-hole shapes for rivet connection of a composite plate." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 20 (2016): 3810–17. http://dx.doi.org/10.1177/0954406216652169.

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The rivet joint is an important mechanical connection for hot structures made of ceramic matrix composites. The development of chemical vapor infiltration technology provides a possible application of novel rivets for these structural components. However, connectors can still be the weakest link for structural integrity due to the severe stress concentration around the rivet joint holes. The geometry parameters of the rivet hole can be key influencing factors to the structural strength. A comparative evaluation is presented to analyze the influence of opening-hole shapes on the structural stre
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20

Hu, F. Z., and C. Soutis. "Evaluation of the Ko-Len Model for Enterlaminar Stresses in Composite Laminates with an Open Hole." Advanced Composites Letters 5, no. 5 (1996): 096369359600500. http://dx.doi.org/10.1177/096369359600500503.

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The purpose of this paper is to evaluate a recently developed analytical model [1] which determines the interlaminar stress distributions around a circular hole in symmetric composite laminates under in-plane tensile loading. For this purpose, a three-dimensional finite element analysis is performed and the stress distributions for symmetric cross-ply laminates are presented This work is relevant to the prediction of delamination onset load and location around the discontinuity.
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21

Kushwaha, Mayank, and Parveen K. Saini. "An Analytical Approach to Reduce the Stress Concentration around a Circular Hole in a Functionally Graded Material Plate under Axial Load." Applied Mechanics and Materials 592-594 (July 2014): 985–89. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.985.

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This paper presents an analytical method to reduce the stress concentration in a functionally graded material (FGM) plate, having a circular cutout, under axial loading. An exponential radial variation and the variation by the power law, of the Young’s modulus is assumed here. This is achieved by decomposing the plate into a number of rings. Muskhelishivili’s method of the complex variable function is used for this piece of work study of stress distribution in the plate. It is observed that the stress concentration decreases as the Young’s modulus increases radially away from the hole.
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22

INO, Takuichiro, Akihide SAIMOTO, Shinnosuke NAKASHIMA, and Keiji KAJIHARA. "C-01 Analysis of residual stress distribution around a circular hole applied an excessive internal pressure." Proceedings of Conference of Kyushu Branch 2016.69 (2016): 83–84. http://dx.doi.org/10.1299/jsmekyushu.2016.69.83.

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23

Achache, Habib, Benali Boutabout, and Djamel Ouinas. "Mechanical Behavior of Laminated Composites with Circular Holes." Key Engineering Materials 550 (April 2013): 1–8. http://dx.doi.org/10.4028/www.scientific.net/kem.550.1.

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This paper presents a numerical method for the evaluation of the stress concentration factor (SCF) in three dimensional laminated composites under mechanical loads. The proposed method uses the finite element formulation. The composites materials based on the epoxy matrix and reinforcing fibers are extensively used in aircraft structures due to their high specific characteristics. However, the withstanding of composite structures can be significantly reduced by the addition of geometric singularities, such as perforations or notches. To Analyses the stress concentration around geometrical notc
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24

D. Tamil Vendan, S. Abdul Rahuman, Nafsiya Abdul Raphic, S. Sumega Sree, and Kore Sai Lakshmi. "Open Hole Tensile Behaviour of Sisal-Glass Reinforced Epoxy Composite." International Research Journal on Advanced Engineering Hub (IRJAEH) 2, no. 06 (2024): 1688–91. http://dx.doi.org/10.47392/irjaeh.2024.0233.

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Research and development in engineering composites are advancing rapidly. The demand for lightweight materials with high specific strength in aerospace and high-energy applications makes composites a prime choice. Using composite materials to reduce structural weight is favored for energy saving and emission reduction, making them popular in automobiles and other fields. However, composites require holes for assembly and fastening in many applications, such as airplane structures and automotive parts. These holes can concentrate stress, potentially reducing tensile strength and compromising st
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25

Mikhaylova, V. L., L. G. Sukhomlinov, and V. A. Mazin. "Numerical solution for the stress concentration problem for the case of a three-layered elastic plane with the two identical vertically placed circular holes under transverse compression." Izvestiya MGTU MAMI 6, no. 2-2 (2012): 294–98. http://dx.doi.org/10.17816/2074-0530-68546.

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The results on the stress distribution in a transversally compressed three-layered elastic plane with the two identical vertically placed circular holes, received by using a variational finite-difference procedure for solving plane elastic problems for the holed rectangular domains, are presented. The effects of the layers' elastic constants on the level of stresses around the holes are examined.
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26

Baek, Tae Hyun, Jie Cheng, and Lei Chen. "OS1-4-1 Measurement of Stress Distribution around a Circular Hole in a Plate under Bending Moment using Phase-shifting Method with Reflective Photoelastic Arrangement." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2007.6 (2007): _OS1–4–1–1—_OS1–4–1–5. http://dx.doi.org/10.1299/jsmeatem.2007.6._os1-4-1-1.

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27

Wang, Qiwei, Junfeng Chen, Xiao Chen, Zengliang Gao, and Yuebing Li. "Fatigue Life Prediction of Steam Generator Tubes by Tube Specimens with Circular Holes." Metals 9, no. 3 (2019): 322. http://dx.doi.org/10.3390/met9030322.

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Heat exchangers manufactured from Inconel 690 tubes are widely used for steam generators in nuclear power plants. Inconel 690 tubes have suffered failures of fatigue fracture due to flow induced vibration. It is difficult to obtain the fatigue life of the tube directly since the conventional fatigue test would potentially cause end fatigue failure due to the stress concentration at the clamp end. In this study, a thin-walled Inconel 690 tube with circular hole is designed to deduce the fatigue life of smooth tube based on the notch fatigue life prediction technology. Firstly, the local stress
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28

Hart, Eteri, and Bohdan Terokhin. "Computer simulation of the stress-strain state of thin plates and cylindrical shells with a circular hole reinforced by an inclusion from functionally graded material." Strength of Materials and Theory of Structures, no. 110 (June 26, 2023): 63–80. http://dx.doi.org/10.32347/2410-2547.2023.110.63-80.

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Computer simulation and FEM analysis of the stress-strain state of thin plates and thin-walled cylindrical shells, weakened by a circular hole in the presence of an annular inclusion of a functionally graded material (FGM) surrounding it, have been carried out. The influence of the dimensions of the FGM-inclusion and the law of change of its elastic modulus on the concentration of the parameters of the stress-strain state of plates and shells in the vicinity of the hole is studied. The distribution of stress and strain intensities in the zones of local stress concentration is obtained. It has
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29

Mikhaylova, V. L., L. G. Sukhomlinov, and V. A. Mazin. "A Numerical Solution of the Stress Concentration Problem for the Case of a Three-layered Elastic Plane with the Two Identical Vertically Placed Circular Holes under Longitudinal Tension." Izvestiya MGTU MAMI 5, no. 2 (2011): 189–95. http://dx.doi.org/10.17816/2074-0530-69960.

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The authors present the results on the stress distribution in a longitudinally strained three-layered elastic plane with the two identical vertically placed circular holes, received by using a variational finite-difference procedure for solving plane elastic problems for the holed rectangular domains. The paper examines the effects of layer elastic constants on the level of stresses around the holes.
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30

Stochioiu, Constantin, Victor-Marian Marinescu, Emilia Georgiana Oprisan, and Miruna Ciolca. "Experimental and Numerical Analysis of the Stress State Produced by a Circular Hole Concentrator." Materiale Plastice 60, no. 3 (2023): 84–93. http://dx.doi.org/10.37358/mp.23.3.5678.

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The paper proposes the analysis of strain and stress state, through experimental and numerical means, of a circular hole type concentrator. The strain state is analyzed through the microscopic Digital Image Correlation technique, due to the small scale of the samples, whose calibrated region is 10x8 mm. The numerical analysis is conducted using the Finite Element Method, through a static structural analysis, using a linear-elastic material model. The results from the two procedures are compared by means of strain field distribution around the stress concentrator and stress variation at the con
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31

Xuan, Zhongtang, and Hongyan Li. "Mechanical characteristics and energy evolution of rock with circular hole defects." PLOS ONE 18, no. 12 (2023): e0295675. http://dx.doi.org/10.1371/journal.pone.0295675.

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In this paper, the uniaxial compression damage characteristics of specimens are analyzed containing holes using PFC2D. In addition, the crack propagation, stress distribution and energy development characteristics of the specimens were systematically discussed. The findings indicate that the strength parameters of various specimens drop initially and then increase with increasing center point connecting angle, in comparison to intact rock. The most significant reduction in strength parameters is observed at a center point connecting angle of 45°. The stress concentration around the holes occur
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32

Mir-Salim-zade, Minavar V. "Elastic-Plastic Problem for a Stringer Plate with a Circular Hole." Journal of Mechanical Engineering 24, no. 3 (2021): 61–69. http://dx.doi.org/10.15407/pmach2021.03.061.

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When calculating the strength of machines, structures and buildings with technological holes, it is important to take into account the plastic zones that emerge around the holes. However, the unknown shape and size of the plastic zone complicate the solution of elastic-plastic problems. This paper gives an approximate method and solution of the plane elastic-plastic problem of the distribution of stresses in a thin plate, reinforced with a regular system of stiffeners (stringers). The stringer plate under consideration has a circular hole, which is completely surrounded by the zone of plastic
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33

Abu-Farsakh, Ghazi A., Amin H. Almasri, and Dana H. Qa’dan. "Stress concentration around a central hole as affected by material nonlinearity in fibrous composite laminated plates subject to in-plane loading." Science and Engineering of Composite Materials 22, no. 1 (2015): 31–36. http://dx.doi.org/10.1515/secm-2013-0125.

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AbstractThe distribution of stresses in laminated composite plates with a central circular hole and having various stacking sequences, different geometric dimensions and subjected to in-plane axial tensile loading was investigated. The ANSYS computer program was utilized using the finite element method to study the linear and nonlinear material effects. A new method was proposed for the purpose of incorporating the material nonlinearity model into the ANSYS computer program using the secant modulus material model. The aim of the authors is to analyze the effect of D/b and a/b ratios (where D i
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34

INO, Takuichiro, Hirotoshi OTUKA, Tomokazu NASIGUCHI, and Akihide SAIMOTO. "Analysis of residual stress distribution around circular holes applied internal pressure and free boundary which cross circular holes." Proceedings of Conference of Kyushu Branch 2017.70 (2017): 718. http://dx.doi.org/10.1299/jsmekyushu.2017.70.718.

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35

Yang, Quanquan, He Cao, Youcheng Tang, Yun Li, and Xiaogang Chen. "Experimental Investigation of Stress Distributions in 3D Printed Graded Plates with a Circular Hole." Materials 14, no. 24 (2021): 7845. http://dx.doi.org/10.3390/ma14247845.

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An experimental investigation is presented for the stress distributions in functionally graded plates containing a circular hole. On the basis of the authors’ previously constructed theoretical model, two kinds of graded plates made of discrete rings with increasing or decreasing Young’s modulus were designed and fabricated in virtue of multi-material 3D printing. The printed graded plates had accurate size, smooth surface, and good interface. The strains of two graded plates under uniaxial tension were measured experimentally using strain gages. The stresses were calculated within the range o
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36

da Silveira, Thiago, Eduardo Araujo Crestani, Elizaldo Domingues dos Santos, and Liércio André Isoldi. "Numerical Analysis of Aspect Ratio Effects on the Mechanical Behavior of Perforated Steel Plates." Metals 15, no. 7 (2025): 786. https://doi.org/10.3390/met15070786.

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Thin plates are commonly used in mechanical structures such as ship hulls, offshore platforms, aircraft, automobiles, and bridges. When subjected to in-plane compressive loads, these structures may experience buckling. In some applications, perforations are introduced, altering membrane stress distribution and buckling behavior. This study investigates the elasto-plastic buckling behavior of perforated plates using the Finite Element Method (FEM), Constructal Design (CD), and Exhaustive Search (ES) techniques. Simply supported thin rectangular plates with central elliptical perforations were a
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37

Khechai, A., and PM Mohite. "Optimum design of perforated symmetric laminates using evolutionary algorithm." Journal of Composite Materials 53, no. 23 (2018): 3281–305. http://dx.doi.org/10.1177/0021998318815324.

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Here, analytical studies have been carried out to determine the optimal values of effective parameters on the stress concentration factor around a cutout using genetic algorithm. Optimum designs of single lamina as well as symmetric laminates with 4, 8 and 12 layers of graphite/epoxy and glass/epoxy plates containing a circular cutout with various sizes are presented. The work focuses on extending the analytical solution given by Greszczuk to determine the stress distribution in multilayered composite plates subjected to arbitrary in-plane loadings. This is achieved by introducing an arbitrary
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Le, Chengjun, Xuhua Ren, Haijun Wang, and Shuyang Yu. "Experimental and Numerical Study on the Failure Characteristics of Brittle Solids with a Circular Hole and Internal Cracks." Materials 15, no. 4 (2022): 1406. http://dx.doi.org/10.3390/ma15041406.

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A stress analysis of a circular hole is one of the classical problems in mechanics. Internal cracks are inherent properties of materials, and they are mostly three-dimensional in form. However, studies on hole problems with three-dimensional internal cracks are still lacking. In this paper, internal cracks were generated in brittle materials containing circular holes based on 3D internal laser-engraved crack technology. Then, uniaxial compression tests were performed. The experimental results were compared with the existing literature, and theoretical and numerical simulation studies were carr
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39

Magied, Hassan Abdelwahab. "Stress distribution analysis around circular holes in metallic plates using finite element method (FEM) in abaqus." International Journal of Mechanics of Solids 5, no. 2 (2024): 33–35. https://doi.org/10.22271/2707806x.2024.v5.i2a.34.

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BAEK, Tae Hyun. "Measurement of Stress Distribution Around a Circular Hole in a Plate Under Bending Moment Using Phase-shifting Method with Reflective Polariscope Arrangement." Journal of Solid Mechanics and Materials Engineering 2, no. 4 (2008): 549–56. http://dx.doi.org/10.1299/jmmp.2.549.

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Li, Zejun, Jianchen Wang, and Kaihang Han. "Analytical Solution of Ground Stress Induced by Shallow Tunneling with Arbitrary Distributed Loads on Ground Surface." Symmetry 11, no. 6 (2019): 823. http://dx.doi.org/10.3390/sym11060823.

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The impact of shallow tunnel construction on the surrounding environment is often considered as a symmetric half-plane problem with circular holes. In this research, the analytical solutions of the ground stresses and displacements of a shallow circular tunnel in an elastic half-plane under arbitrary distributed loads on ground surface were derived, based on the complex variable method. Then, an application was implemented to analyze the potential plastic zone induced by shallow tunneling adjacent to the ground surface structures. The verification of the results obtained from the proposed anal
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Fontes, Brenda Vieira Costa, William Taylor Matias Silva, and Luciano Mendes Bezerra. "Numerical analysis of the stresses and behavior of composite castellated beams with hexagonal holes." Caderno Pedagógico 22, no. 1 (2025): e13714. https://doi.org/10.54033/cadpedv22n1-266.

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This study analyzes the structural behavior of Composite Castellated Beams (CCBs) with circular holes through numerical modeling. Using the Finite Element Method (FEM) in ABAQUS software, different scenarios were simulated to investigate the stress distribution around the holes in I-steel profiles and reinforced concrete slabs. The analysis revealed that, although castellated beams present higher stiffness and load-bearing capacity compared to solid profiles, the holes create complex stress states that require attention in structural design. The results showed a direct relationship between the
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Zhang, Wensong, Paul H. Taylor, and Richard C. Darton. "Simple estimation of effective elastic constants for thin plates with regular perforations and an application to the vibration of distillation column trays." Journal of Strain Analysis for Engineering Design 52, no. 1 (2016): 57–66. http://dx.doi.org/10.1177/0309324716672972.

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The horizontal perforated sheet metal plates are commonly used in the process industries as trays in distillation columns, important internal parts for fractionating the input liquid mixture. Normally, the operating performance of such trays is satisfactory. However, cases have been reported of abnormally high levels of tray vibration during operation at particular conditions. The trays then experienced fatigue cracking accompanied by the loosening of bolts and fixings, which led to expensive failures. The excitation of structural resonance was suspected as a component in flow-induced vibratio
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Lu, Hongbin, Dongfa Sheng, Yuting Fang, Hongquan Yu, and Fan Yang. "Analysis of Tensile Failure Behavior of Metal Fiber Laminates Under Different Temperature Environments." Polymers 16, no. 23 (2024): 3319. http://dx.doi.org/10.3390/polym16233319.

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The tensile properties of fiber metal laminates were examined at temperatures ranging from 30 °C to 180 °C in this paper through the integration of numerical simulation techniques, experimental measurements, and digital image correlation techniques. The laminates were initially modeled using finite elements, and the failure behavior of porous basalt-fiber-reinforced aluminum alloy plates was numerically simulated. Consequently, metal fiber laminate stress–strain responses were varied by numerous tensile experiments conducted at varying temperatures. Simultaneously, a scanning electron microsco
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Mehtiyev, Rafail K. "Mathematical modeling of an elastoplastic problem for a fractured massif, underground workings." Nafta-Gaz 81, no. 2 (2025): 109–16. https://doi.org/10.18668/ng.2025.02.03.

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This article considers the problem of plane elastoplasticity of stress distribution in a rock mass weakened by a circular excavation. The components of stress, strain, and displacement in the elastic and inelastic field, as well as the dimensions and shape of the contour separating them, have been determined. The convergence of results between the analytical and numerical solutions of the problem is evaluated. The complexity of elastoplastic problems lies in the fact that the shape and dimensions of the plastic zone are not known in advance and must be determined. The main advances in solving
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Bao, Chunyan, Meng Zhou, and Yuexiang Cai. "Study of Rock Crack Extension under Liquid Nitrogen Low-Temperature Fracturing." Applied Sciences 12, no. 11 (2022): 5739. http://dx.doi.org/10.3390/app12115739.

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Shale gas is a promising new energy source stored in shale. This research aims to study the laws of rock crack initiation and propagation under the low-temperature fracturing of liquid nitrogen, explore the influencing factors of the shale reservoir fracturing effect, and identify the method that achieves the best fracturing effect and obtains the highest economic benefits. Herein, a visualized physical experiment of the liquid nitrogen effect is carried out, and the fracture process of a numerical model under cold shock is simulated to analyze the effect of homogeneity on shale crack propagat
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Gao, Xu, Zhenkai Ma, Haoyu Shi, and Jicheng Feng. "Energy release induced rockbursts based on butterfly-shaped plastic zones in roadways of coal reservoirs." PLOS ONE 16, no. 7 (2021): e0255044. http://dx.doi.org/10.1371/journal.pone.0255044.

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According to the theories of rockburst based on butterfly-shaped plastic zones, a plane strain mechanical model was established for stress distribution around the holes in homogeneous elastoplastic media. Based on the Mohr-Coulomb yield criterion and the generalized form of Hooke’s law, the equation for the elastic strain-energy density of units at a 3D stress state was deduced. On this basis, the energy absorption and release in rocks surrounding a roadway during the evolution thereof in a coal reservoir tend to rock bursting were quantified. Through Flac3D 5.0 numerical simulation software,
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Borri-Brunetto, Mauro, Bernardino Chiaia, and Marco Deambrosi. "A Micromechanical Model for Fibrous Biological Membranes at Finite Strain." Journal of Biomimetics, Biomaterials and Tissue Engineering 3 (July 2009): 1–23. http://dx.doi.org/10.4028/www.scientific.net/jbbte.3.1.

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The mechanical model of a number of biological tissues is a membrane, i.e., a sheetlike structure with small thickness, where deformation and stress can be described locally in two dimensions. Many bio-membranes, particularly if subjected to large mechanical loads, present a fibrous structure, with stiff fibers, sometimes with preferential orientations, embedded in a more compliant matrix. Among this tissues are, e.g., the arterial walls, the amniotic membrane, and the skin. The stiff fibers, typically made of collagen, are initially wrinkled and they follow the deformation of the embedding ma
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Zhou, Bo, Xu Kun Li, and Gang Ling Hou. "Study on Shape Memory Alloy Plate with Circular Hole under Biaxial Uneven Tension." Advanced Materials Research 457-458 (January 2012): 994–97. http://dx.doi.org/10.4028/www.scientific.net/amr.457-458.994.

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This paper focuses on the thermo-mechanical behaviors of a shape memory alloy (SMA) plate with a circular hole under biaxial uneven tension. The phase transformation behaviors of SMA under complex stress state are formulated based on the one-dimensional phase transformation model developed by Zhou and Yoon. The stress field equation of the SMA plate with a circular hole is derived according to linear elastic mechanics. The phase transformation behaviors near the region around the circular hole are numerically simulated under different conditions of applied stress.
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Wang, Ke, Wei Feng Xu, Zun Chao Liu, and Min Shan Liu. "Stress Analysis for Clad Steel Tube Sheet with Oval Tube Hole." Applied Mechanics and Materials 853 (September 2016): 296–300. http://dx.doi.org/10.4028/www.scientific.net/amm.853.296.

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Models are established for oval tube hole clad steel tube sheet and circular tube hole clad steel tube sheet. Finite element analysis software ANSYS Workbench is used. Stress distribution characteristics of tube sheet with oval tube hole are investigated. Stress distribution characteristics under different ellipticity are analyzed and the general law of stress distribution of oval tube hole clad steel tube sheet is summarized. Results show: effects of tube hole shape on stress of clad steel tube sheet mainly focus in the tube zone, oval tube hole could effectively improve the phenomenon of str
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