Stress intensity factors for cracks initiated from a center-holed plate with unsymmetrical lengths under tension

Saimoto, Akihide; Fujikawa, Masaki; Makabe, Chobin; Yamanaka, Taisuke; Rana, Muhammed Sohel

doi:10.1016/j.engfailanal.2009.10.017

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…He claimed that his solution was simple and accurate. Saimoto et al [17] investigated the SIFs for cracks initiated from a center-holed plate with unsymmetrical lengths under mechanical loading. For this purpose, they compared the SIF of a plate containing a cracked hole with a plate containing a central crack.…”

Section: Introductionmentioning

confidence: 99%

Analytical calculation of stress intensity factors for orthotropic plates containing cracks emanating from a circular hole using Schwarz integration

Moussavian,

Jafari,

Hajimohammadi

2023

Z Angew Math Mech

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In this paper, a new analytical method is presented to determine the stress intensity factors (SIFs) of a generally orthotropic plate with cracks emanating from a circular hole. Therefore, using the Schwartz integration method, for the first time, the analytical solution is provided based on the complex variable method. In order to use the Schwartz's theorem in solving complex integrals, a new presentation of the mapping function has been presented, which leads to providing a simpler solution. After calculating the potential functions, the SIFs are determined for the circular hole with one and two cracks. Then, the effect of parameters such as fiber angle, different and unequal crack lengths, and different loadings are studied. To validate the results of the present analytical solution, some results have been compared with the results from other references. Comparing the results showed that the current solution has good accuracy and is reliable and the fiber angle has a significant effect on the mode II SIF. In the case that the fibers are along the crack length and the loading is perpendicular to the crack direction, the mode II SIF is zero, but if the fibers are not along the crack length, the value of the mode II SIF will not be zero. It is also shown that increasing the length of one crack increases the SIF of another crack as well.

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Section: Introductionmentioning

confidence: 99%

Analytical calculation of stress intensity factors for orthotropic plates containing cracks emanating from a circular hole using Schwarz integration

Moussavian,

Jafari,

Hajimohammadi

2023

Z Angew Math Mech

View full text Add to dashboard Cite

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“…There have been many research results about linear elastic computational analysis of hole-edge crack, for example: Newman [1] and Bowie [2] did some researches about the crack deriving from round hole in an infinite plate under biaxial loads; Murakami [3] , Hasebe [4] and Neel [5] used the force method to study the crack deriving from a triangular hole or a square hole in an infinite plate under tensile load; Akihide Saimoto [6] did a detailed analysis on the stress intensity factor of hole-edge crack by using the superposition principle and the finite element method. Research results of linear elastic problem were basically included in the stress intensity factor manual [7] .…”

Section: Introductionmentioning

confidence: 99%

Elastic-Plastic Constraints Analysis for Hole-Edge Crack

Xie

Wang

Zhang

2015

AMR

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This paper mainly conducts an elastic-plastic constraint analysis on rectangular plate specimens with hole-edge crack under remote uniaxial uniformly distributed load by usingJ-A2elastic-plastic fracture theory. In order to analyze the effect of orifice on elastoplastic stress field of hole-edge crack tip, this paper calculates a series of round hole-edge crack, diamond hole-edge crack and corresponding pure crack models. The interference effects of the orifice shape on elastic-plastic J integral and crack constraint parameterA2are discussed. The results show that: the orifice has an amplification effect on the fracture driving force (J-integral), and this amplification effect in elastic-plastic is smaller than that in elastic; the orifice has a shielding effect on the crack tip constraint (A2parameter), and this shielding effect gradually weaken with the crack increasing.

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“…Stress concentration causes hole-edge cracks easily, so the analysis of hole-edge crack is a basic content of safety assessment for perforated structures. In the recent past, there have been lots of elastic analysis research results for hole-edge cracks, for example, J. Schijve [1] gave detailed analysis of comparison between empirical stress intensity factors and stress intensity factors obtained by calculation; Norio Hasebe et al [2,3] , Akihide Saimoto [4] obtained elastic stress intensity factors of various hole-edge crack forms using superposition principle, the FE analysis and other methods. However, the elastic-plastic analysis which is closer to the actual situation is not yet perfected.…”

Section: Introductionmentioning

confidence: 99%

J-Integral and Plastic Limit Load of Hole-Edge Crack in Plate under Biaxial Loadings

Zhang

Wang

2014

AMR

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Elastic-plastic J-integral and plastic limit load were described by finite element (FE) analysis for single hole-edge crack in plate under far field biaxial load. In this paper, the effect of biaxial load ratio (from -1 to 1) on elastic-plastic J-integral and plastic limit load was studied, the values of coefficient h1 for J-integral engineering estimation formulas were given and the effect of material hardening on plastic limit load was discussed. The result obtained from this work provides reference for fracture evaluation, so it can be used in engineering accurately and expediently.

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Stress intensity factors for cracks initiated from a center-holed plate with unsymmetrical lengths under tension

Cited by 5 publications

References 5 publications

Analytical calculation of stress intensity factors for orthotropic plates containing cracks emanating from a circular hole using Schwarz integration

Analytical calculation of stress intensity factors for orthotropic plates containing cracks emanating from a circular hole using Schwarz integration

Elastic-Plastic Constraints Analysis for Hole-Edge Crack

J-Integral and Plastic Limit Load of Hole-Edge Crack in Plate under Biaxial Loadings

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