Dynamic stress intensity factors for suddenly loaded structures using enriched finite elements

Saribay, Murat; Nied, H. F.

doi:10.1016/j.tafmec.2014.02.003

Cited by 8 publications

(7 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For a more detailed description of enriched element formulation, [11] and [12] are highly referenced.…”

Section: Calculation Of Stress Intensity Factorsmentioning

confidence: 99%

“…Since a fracture analysis requires to deal with asymptotic singularities present at the crack tip, the correct evaluation of these parameters is definitely needed. For this purpose, a Fortran 90 software, called FRAC3D, was developed by the author and his colleagues at Lehigh University ME&M Department [11,12] and has been a remarkable finite element program for the solution of fracture mechanics problems with high complexity (in terms of analysis type, loading, material behavior or geometry). FRAC3D benefits from special enriched elements that account for the asymptotic singularities at the crack tip.…”

Section: Calculation Of Stress Intensity Factorsmentioning

confidence: 99%

“…Enriched element methodology used with FRAC3D program [11,12] is an effective tool for the analysis of fracture problems. Fracture problems are solved accurately with less number of elements around the crack front, when compared to the other programs available.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Karışık Modlu Yorulma Çatlak Büyümesi Olayının Yeni Bir Hesaplamalı Yöntem ile İncelenmesi

Saribay¹

2020

International Journal of Advances in Engineering and Pure Sciences

View full text Add to dashboard Cite

Analysis of 3-D fatigue crack growth problems with mixed-mode loading has always been an interesting area in the field of fracture mechanics. Fracture failure under the influence of fatigue loading has been a common experience for various industries' products, such as aerospace and automotive components. Any possible failure in these structures can result in high damage to these components or a serious risk for people's health. The analysis of such failures may involve great challenges and complexities for obtaining the accurate solution. The complexities of the problem may not only be related to the loading type, but also to the specific geometry itself. Such problems are hard and costly to analyze with experimental methods. Therefore, it is important to establish the theoretical aspects of the process initially, and then having a computational procedure to solve the problem at hand. The crack growth law used in this procedure is NASGRO-type, and determination of the propagation angle is based on the maximum hoop stress criterion. Hypermesh and ANSYS APDL software are benefited during preprocessing of the propagation steps and application of submodeling procedure. Solution of the problem is performed with FRAC3D program, its enriched element methodology and newly implemented tools for crack growth. A specific example that includes cracking within an aircraft engine compressor blade is shown for demonstration purpose.

show abstract

“…For a more detailed description of enriched element formulation, [11] and [12] are highly referenced.…”

Section: Calculation Of Stress Intensity Factorsmentioning

confidence: 99%

Section: Calculation Of Stress Intensity Factorsmentioning

confidence: 99%

See 1 more Smart Citation

Karışık Modlu Yorulma Çatlak Büyümesi Olayının Yeni Bir Hesaplamalı Yöntem ile İncelenmesi

Saribay¹

2020

International Journal of Advances in Engineering and Pure Sciences

View full text Add to dashboard Cite

show abstract

“…Recently, a specialized finite element software, called FRAC3D, was created at Lehigh University ME&M Department. 7 Later, FRAC3D program was further extended 8 to gain the ability for the analysis of linear elastic transient fracture problems. The stress singularity that exists at the crack tip was properly taken into account by using special enriched elements.…”

Section: Introductionmentioning

confidence: 99%

Effect of stress wave propagation phenomenon on the determination of strain energy density theory parameters and dynamic J‐integral

Saribay

2022

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

Dynamic loading for stationary cracks leads to results that are many times greater in magnitude than their static counterparts. If the dynamic loading is in the form of impact type, stress wave propagation effects become dominant. FRAC3D program comprises enriched element formulation which doesn't require excessive mesh refinement around crack tip for accuracy. Strain energy density (SED) theory parameters and dynamic J‐integral are sought in this study to simulate and understand wave propagation phenomenon in detail. Structures under the effect of wave propagations yield more reliable J‐integral values by taking the average of the results from multiple domain sizes. Governed by stress waves, space‐time variations of minimum energy density locations strongly influence fracture characterization for straight and curved crack fronts. Details given in numerical examples section of this paper make a great contribution to understanding of the response for cracked structures subjected to sudden loading.

show abstract

“…Matthews used the finite element analysis (FEA) for large displacement J-integral test to analyze mode I interlaminar fracture in composite materials [19]. The dynamic crack tip fields were determined, and the crack propagation of anisotropic materials was also characterized [20]. These previous works are important; however, they only focus on the dynamic cracks of isotropic and orthotropic materials, but not on the direction of crack propagation.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Dynamic Fracture Parameters in Functionally Graded Material Plates with Cracks by Graded Finite Element Method and Virtual Crack Closure Technique

Zhou

Meng

et al. 2016

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Based on the finite element software ABAQUS and graded element method, we developed a dummy node fracture element, wrote the user subroutines UMAT and UEL, and solved the energy release rate component of functionally graded material (FGM) plates with cracks. An interface element tailored for the virtual crack closure technique (VCCT) was applied. Fixed cracks and moving cracks under dynamic loads were simulated. The results were compared to other VCCT-based analyses. With the implementation of a crack speed function within the element, it can be easily expanded to the cases of varying crack velocities, without convergence difficulty for all cases. Neither singular element nor collapsed element was required. Therefore, due to its simplicity, the VCCT interface element is a potential tool for engineers to conduct dynamic fracture analysis in conjunction with commercial finite element analysis codes.

show abstract

Dynamic stress intensity factors for suddenly loaded structures using enriched finite elements

Cited by 8 publications

References 8 publications

Karışık Modlu Yorulma Çatlak Büyümesi Olayının Yeni Bir Hesaplamalı Yöntem ile İncelenmesi

Karışık Modlu Yorulma Çatlak Büyümesi Olayının Yeni Bir Hesaplamalı Yöntem ile İncelenmesi

Effect of stress wave propagation phenomenon on the determination of strain energy density theory parameters and dynamic J‐integral

Analysis of Dynamic Fracture Parameters in Functionally Graded Material Plates with Cracks by Graded Finite Element Method and Virtual Crack Closure Technique

Contact Info

Product

Resources

About