Stress distribution around triangular holes in anisotropic plates

Ukadgaonker, Vijay G.; Rao, D. K.

doi:10.1016/s0263-8223(99)00024-0

Cited by 61 publications

(25 citation statements)

References 7 publications

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“…where E, F and G are real value constants that will be determined by substituting equation (18) into equation (13) Figure 18. Illustration of mapping a hole having an irregular shape in an infinite plate onto a unit circle using mapping functions.…”

Section: Declaration Of Conflicting Interestsmentioning

confidence: 99%

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The effects of composite laminate stiffness and loading on stress resultant concentration factor around a hole

Damghani

Harrison

Kennedy

2018

Proceedings of the Institution of Mechanical Engineers, Part C:

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An analytical tool is developed using conformal mapping and the complex variable method for determining the stress resultant concentration factor in an infinite plate with a circular or elliptical hole. This tool is validated against finite element analysis. A population space of 305 laminates is generated by stacking unidirectional carbon fibre reinforced polymer material at various orientations covering a wide spectrum of homogenised stiffness values. The analytical approach is then used to study the effect(s) of loading conditions, stacking sequences and laminate homogenised stiffness values on the stress resultant concentration factor at the edge of a circular hole.

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Section: Declaration Of Conflicting Interestsmentioning

confidence: 99%

“…By combining equations (12), (18), (27) and (29), the final resultant force components are calculated as…”

Section: Declaration Of Conflicting Interestsmentioning

confidence: 99%

The effects of composite laminate stiffness and loading on stress resultant concentration factor around a hole

Damghani

Harrison

Kennedy

2018

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Ukadgaonker and Rao [4][5], and Ukadgaonker and Kakhandki [6] found stress distribution around holes of different shapes under different types of loading conditions for symmetric and unsymmetrical infinite laminated composite plate. The stress intensity factor for the cracks emanating from circular hole in infinite isotropic plate is studied extensively by many researchers, but, the same is not true in case of orthotropic/anisotropic media.…”

Section: Introductionmentioning

confidence: 99%

Stress Intensity Factors for Cracks Emanating from a Circular Hole in Laminated Composite Infinite Plate Under Different Loading Conditions

Sharma

Ukadgaonker

2008

2008 First International Conference on Emerging Trends in Engineering and Technology

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General solutions for determining the stress intensity factors, for cracks emanating from circular hole in laminated composite infinite plate subjected to arbitrary loading, with layers of arbitrary fiber orientations and stacking sequence, are obtained using Muskhelishvili's complex variable method. The stress functions are obtained by evaluating Schwarz's integral for the given boundary conditions. The generalized formulation thus obtained is coded and numerical results are obtained using MATLAB 6.5. The effect of crack orientation, loading pattern and fiber orientation is studied for orthotropic and isotropic plates. For some of the cases half crack plane stress model are prepared in ANSYS and results are compared with present method.

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“…Besides, various other shapes were also considered for the composite cutout, e.g. triangular holes, 16 square, and rectangular shapes. 17…”

Section: Introductionmentioning

confidence: 99%

Evaluation of opening-hole shapes for rivet connection of a composite plate

Zhou

Fei

2016

Proceedings of the Institution of Mechanical Engineers, Part C:

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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 stress concentration of a composite plate. The opening-hole shapes considered include circle, ellipse, and racetrack. The finite element (FE) models of specimens with the three shapes of rivet holes were constructed. The stress distributions of the specimens under tensile loading were analyzed to compare the stress concentration factor (SCF) of different opening-hole shapes. An optimal shape, i.e. racetrack-shaped, was determined based on the SCF reduction of specimen-level comparison. Then, FE models of a composite plate containing rivet holes were built to verify the outperformance of the racetrack-shaped hole. A stress concentration reduction of the plate with racetrack-shaped holes was observed compared to the one with circular holes.

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Stress distribution around triangular holes in anisotropic plates

Cited by 61 publications

References 7 publications

The effects of composite laminate stiffness and loading on stress resultant concentration factor around a hole

The effects of composite laminate stiffness and loading on stress resultant concentration factor around a hole

Stress Intensity Factors for Cracks Emanating from a Circular Hole in Laminated Composite Infinite Plate Under Different Loading Conditions

Evaluation of opening-hole shapes for rivet connection of a composite plate

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