Three Diminsional Crack Growth Prediction

Galyon, Sarah E.; Arunachalam, Saravanan; Greer, James M.; Hammond, Matthew J.; Fawaz, Scott A.

doi:10.1007/978-90-481-2746-7_57

Cited by 5 publications

(5 citation statements)

References 7 publications

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“…4 shows that the results of the scaled boundary polygons i.e. the predicted fatigue life and crack trajectory agree very well with the experiments [11] and the FE simulations of [10]. The functionally graded plate with branched cracks extending from an existing crack tip shown in Fig.…”

Section: Advances In Computational Mechanicssupporting

confidence: 73%

Crack Propagation Modeling with Scaled Boundary Polygons

Ooi

Song

Tin‐Loi

2014

AMM

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Crack propagation is modelled using scaled boundary polygons. The polygons discretise the computational domain and can be of any number of sides, leading to more flexible mesh generation. The scaled boundary finite element method is used to construct shape functions of the polygon elements. These shape functions form a partition of unity and are linearly complete. They can accurately model any kind of stress singularity without local mesh refinement or asymptotic enrichment functions. The scaled boundary shape functions enable the method to be further developed to model the response of heterogeneous and nonlinear materials. As the polygons can be of any number of sides, simple re-meshing algorithms can be devised to model crack propagation. Two numerical benchmarks are modeled to illustrate the salient features of the scaled boundary polygons.

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Section: Advances In Computational Mechanicssupporting

confidence: 73%

Crack Propagation Modeling with Scaled Boundary Polygons

Ooi

Song

Tin‐Loi

2014

AMM

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“…Figures 31a and b compare the predicted crack paths with the experimental measurements of Gaylon et al [118].…”

Section: Fatigue Crack Propagationmentioning

confidence: 78%

“…The fatigue fracture of the Arcan specimen [118] subjected to mixed-mode loading shown in Fig. 30a is considered.…”

Section: Fatigue Crack Propagationmentioning

confidence: 99%

A review of the scaled boundary finite element method for two-dimensional linear elastic fracture mechanics

Song

Ooi

Natarajan

2018

Engineering Fracture Mechanics

138

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The development and the application of the scaled boundary finite element method for fracture analysis is reviewed. In this method, polygonal elements (referred to as subdomains) of arbitrary number of edges are constructed, with the only limitation that the whole boundary is directly visible from the scaling centre. The element solution is semianalytical. When applied to two-dimensional linear fracture mechanics, any kinds of stress singularities are represented analytically without local refinement, special elements and enrichment functions. The flexibility of polygonal elements in geometric shape leads to simple yet efficient remeshing algorithms to model crack propagation. Coupling procedures with the extended finite element method, meshless method and boundary element method to handle changes in the crack morphology have been established. These developments result in an efficient framework for fracture modelling. Examples of applications are provided to demonstrate their feasibility.

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“…The specimen (characterized by the following sizes: t = 1.6 mm, b = 38.1 mm, a 0 = 2.997 mm) [14,16] is made of 2024 T351 aluminium alloy (C = 5.3 10 -10 , m = 2.9). Under mixed mode loading conditions, fatigue strength is herein estimated by employing Eqs (2) and (3) together with Eqs (6) - (8).…”

Section: Strength Assessments Of Mixed Mode Damages 41 Failure Perfomentioning

confidence: 99%

“…2a and b for applied loadings characterized by φ=30°, P max = 2647 N and φ = 75°, P max = 3047 N, respectively. Further, in Table 1 such mixed mode results are compared with experimental observations for two material orientations (that is longitudinal transverse (LT) and transverse longitudinal (TL)) [16].…”

Section: Strength Assessments Of Mixed Mode Damages 41 Failure Perfomentioning

confidence: 99%

Residual strength evaluation under mixed mode loading

Boljanović

Maksimović²,

Carpinteri

2019

MATEC Web Conf.

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This work explores the failure resistance of fatigue damages with random orientation through a new computational framework. Such analytical model aims to enable designers to properly and quickly assess stress state and residual life under cyclic loading with constant amplitude and overload, employing suitable fracture mechanics-based concepts. The efficiency of estimates obtained is discussed by means of relevant mixedmode tests available in the literature.

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Three Diminsional Crack Growth Prediction

Cited by 5 publications

References 7 publications

Crack Propagation Modeling with Scaled Boundary Polygons

Crack Propagation Modeling with Scaled Boundary Polygons

A review of the scaled boundary finite element method for two-dimensional linear elastic fracture mechanics

Residual strength evaluation under mixed mode loading

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