PSI - Issue 21

Available online at www.sciencedirect.com ScienceDirect StructuralIntegrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect StructuralIntegrity Procedia 00 (2019) 000 – 000

www.elsevier.com/locate/procedia

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 21 (2019) 21–30

© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the 1st International Workshop on Plasticity, Damage and Fracture of Engineering Materials organizers © 2019 The Authors.Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/ Peer-review under responsibility of the 1st International Workshop on Plasticity, Damage and Fracture of Engineering Materials organizers CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/ Abstract In thi study, results from two applications on three-dimensional fatigue crack pro agation usi g th in-house developed “Fracture and Crack Prop gation Analysis System (FCPAS)” are presented. FCPAS u es finite lement models to calculate three dim nsion l mixed mode stress intensity factors and other sub-modules to predict shapes of the incrementally growing crack ronts and the resulting fatigue crack propagati n lives. The evolving crack surfaces ar g nerated by successively adding increm ntal growth surfaces nd re-meshing and re-solving the finite lement model using the standalon program FRAC3D, a finite element-based standalo e program e ploying three-dime sional enriched finite elements. Th results show that the fracture sur ac s evolve into a mode-I type three-dimens on l crack as expected. V ry good agreements are obtain d between the results of th urrent studies a d thos of numerical applications in terms of both evolving crack surfaces and crack propagation lives. Therefore, it is concluded that the applied method is capable of accurately predicting linear elastic three-dimensional mixed mode fatigue crack propagation probl ms. © 2019 The Autho s.Published by Els vier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/ Peer-review under responsibility of the 1st International Workshop on Plasticity, Damage and Fracture of Engineering Materials organizers 1st International Workshop on Plasticity, Damage and Fracture of Engineering Materials Applications on Three-Dimensional Mixed Mode Fatigue Crack Propagation Using Fracture and Crack Propagation Analysis System (FCPAS) Emre Kurt a , O ğuzhan Demir b , Ali O. Ayhan a, * a Department of Mechanical Engineering, Sakarya University, Sakarya 54050, Turkey b Department of Mechanical Engineering, Bilecik Şeyh Edebali University, Bilecik 11230, Turkey Abstract In this study, results from two applications on three-dimensional fatigue crack propagation using the in-house developed “Fracture and Crack Propagation Analysis System (FCPAS)” are presented. FCPAS uses finite element models to calculate three dimensional mixed mode stress intensity factors and other sub-modules to predict shapes of the incrementally growing crack fronts and the resulting fatigue crack propagation lives. The evolving crack surfaces are generated by successively adding the incremental growth surfaces and re-meshing and re-solving the finite element model using the standalone program FRAC3D, a finite element-based standalone program employing three-dimensional enriched finite elements. The results show that the fracture surfaces evolve into a mode-I type three-dimensional crack as expected. Very good agreements are obtained between the results of the current studies and those of numerical applications in terms of both evolving crack surfaces and crack propagation lives. Therefore, it is concluded that the applied method is capable of accurately predicting linear elastic three-dimensional mixed mode fatigue crack propagation problems. e 1st International Workshop on Plasticity, Damage and Fracture of Engineering Materials A plications on Three-Dimensional Mixed M de Fatigue Crack Propagation Using Fracture and Crack Propagation Analysis System (FCPAS) Emre Kurt a , O ğuzhan Demir b , Ali O. Ayhan a, * a Department of Mechanical Engineering, Sakarya University, Sakarya 54050, Turkey b Department of Mechanical Engineering, Bilecik Şeyh Edebali University, Bilecik 11230, Turkey Keywords: Finite element method; three-dimensional mixed mode; fatigue crack propagation

Keywords: Finite element method; three-dimensional mixed mode; fatigue crack propagation

2452-3216© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/ Peer-review under responsibility of the 1st International Workshop on Plasticity, Damage and Fracture of Engineering Materials organizers 2452 3216© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/ Peer-review under responsibility of the 1st International Workshop on Plasticity, Damage and Fracture of Engineering Materials organizers

*Corresponding Author E-mail: ayhan@sakarya.edu.tr Tel: +90 (264) 295 56 56 *Corresponding Author E-mail: ayhan@sakarya.edu.tr Tel: +90 (264) 295 56 56

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the 1st International Workshop on Plasticity, Damage and Fracture of Engineering Materials organizers 10.1016/j.prostr.2019.12.082