Simulation of crack growth in the compressor blade subjected to resonant vibration using hybrid method

Witek, Lucjan

doi:10.1016/j.engfailanal.2014.12.004

Cited by 44 publications

(25 citation statements)

References 14 publications

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“…The expressions of the J-integral for the two solutions J (1) and J (2) in terms of the stress intensity factors (K I , K II , K III ) can be obtained from Eq. (1)…”

Section: M-integral For Computing Individual Stress Intensity Factorsmentioning

confidence: 99%

“…(9) into Eq. (6) yields the expression of the M-integral M (1,2) in terms of the stress intensity factors (K I , K II , K III )…”

Section: M-integral For Computing Individual Stress Intensity Factorsmentioning

confidence: 99%

“…While significant attention has been devoted to failure analysis of cracked turbine blades in recent years, with advances in three-dimensional fracture analysis, efforts have been made to characterize the crack propagation in cracked blades. Witek [2] proposed a hybrid procedure of crack growth dynamic estimation in an aero-turbine compressor blade subjected to resonant vibrations. Poursaeidi and Bakhtiari [3] used the fracture analysis code FRANC3D [4] to simulate fatigue crack growth in a gas turbine compressor blade, while using the Paris and Forman-Newman-De Koning model to predict fatigue life.…”

Section: Introductionmentioning

confidence: 99%

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Static fracture and modal analysis simulation of a gas turbine compressor blade and bladed disk system

Fernandes

El-Borgi

Ahmed

et al. 2016

Adv. Model. and Simul. in Eng. Sci.

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This paper presents a methodology for conducting a 3-D static fracture analysis with applications to a gas turbine compressor blade. An open crack model is considered in the study and crack-tip driving parameters are estimated by using 3-D singular crack-tip elements in ANSYS . The static fracture analysis is verified with a special purpose fracture code (FRANC3D). Once the crack front is perfectly defined and validated, a free vibration study is conducted by analyzing the natural frequencies and modeshapes for both a single blade and bladed disk system. Taking advantage of high performance computing resources, a high fidelity finite element model is considered in the parametric investigation. In the fracture simulation, the influence of the size of a single edged crack as well as the rotational velocity on fracture parameters (stress intensity factors and J-Integral) are evaluated. Results demonstrate that for the applied loading condition, a mixed mode crack propagation is expected. In the modal analysis study, increasing the depth of the crack leads to a decrease in the natural frequencies of both the single blade and bladed disk system, while increasing the rotational velocity increases the natural frequencies. The presence of a crack also leads to mode localization for all mode families, a phenomenon that cannot be captured by a single blade analysis.

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“…The expressions of the J-integral for the two solutions J (1) and J (2) in terms of the stress intensity factors (K I , K II , K III ) can be obtained from Eq. (1)…”

Section: M-integral For Computing Individual Stress Intensity Factorsmentioning

confidence: 99%

“…(9) into Eq. (6) yields the expression of the M-integral M (1,2) in terms of the stress intensity factors (K I , K II , K III )…”

Section: M-integral For Computing Individual Stress Intensity Factorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Static fracture and modal analysis simulation of a gas turbine compressor blade and bladed disk system

Fernandes

El-Borgi

Ahmed

et al. 2016

Adv. Model. and Simul. in Eng. Sci.

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“…The approach to increase the strength of bonded joints is decreasing of joint stiffness in the external area of overlap by changing the geometrical parameters [6][7][8][9][10]. An engineering tool which allows the stress, strain and fatigue analysis of adhesive joints in engineering applications is finite element method (FEM) or boundary element method (BEM) [11][12][13][14][15][16][17][18]. Most of the research works are related to the analysis of joints with the linear-elastic material of adherend.…”

Section: Introductionmentioning

confidence: 99%

Influence of Plastic Deformation of Adherend Material on Stress Distribution in Adhesive Lap Joints

Witek

2017

Acta Metall Slovaca

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In the stress analysis of adhesive lap joints, the linear-elastic model of adherend material is often used. In some cases, when the joined material has a low yield stress, this assumption causes errors in the stress estimation in the adhesive layer or adherend. In this study, the results of numerical stress and strain analysis of adhesive lap joint were presented. In the performed analysis, both the elastic-plastic and linear-elastic models of joined materials were considered. In the first part of the study, the properties of adherend material were determined in experimental investigations. Next, the discrete model of joint was created. The results of nonlinear finite element analysis showed that for joints of materials with a low value of yield stress the plastic deformation begins in adherend at load 50% lower than destructive force of the joint. As a result of this phenomenon, the rapid stress increase in the adhesive layer is observed in an advanced phase of loading. This causes a significant decrease in strength in the lap joints of elastic-plastic materials.

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“…The works which deal with this area include: determination of methods of reduction of fuel consumption and emission of pollution to the environment, identification of sources of noise in the engine and possibilities of its limitation, strength tests of selected elements of the engine and whole units in dynamic states, as well as modern materials and manufacturing technologies used in aircraft industry [3,14,16,19,20].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of performance properties of two combustor turbofan engine

Jakubowski¹

2015

EiN

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Article citation info: (*) Tekst artykułu w polskiej wersji językowej dostępny w elektronicznym wydaniu kwartalnika na stronie www.ein.org.pl IntroductionIn air-transport two or three shafts high bypass ratio turbofan engines and turboprop engines are the dominant kind of propulsion. Both of the types found their use in aircrafts because of their profitable performance characteristics. First of all, this is low specific fuel consumption, which is about 20% of the value of this parameter for turbojet engines [15,18].Turboprop engines are characterized by a lower specific fuel consumption than high bypass turbofan engines. However, a significant limitation of these engines is a lower cruise speed which follows from limitations connected with a significant decrease of propellers per- JAkubowski R. Evaluation of performance properties of two combustor turbofan engine. Eksploatacja i Niezawodnosc -Maintenance and Reliability 2015; 17 (4): 575-581, http://dx

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Simulation of crack growth in the compressor blade subjected to resonant vibration using hybrid method

Cited by 44 publications

References 14 publications

Static fracture and modal analysis simulation of a gas turbine compressor blade and bladed disk system

Static fracture and modal analysis simulation of a gas turbine compressor blade and bladed disk system

Influence of Plastic Deformation of Adherend Material on Stress Distribution in Adhesive Lap Joints

Evaluation of performance properties of two combustor turbofan engine

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