Fatigue life prediction of cracked attachment lugs using XFEM
Source abstract
Abstract
Abstract In the present paper, a three dimensional finite element method (FEM) is used to compute the stress intensity factor (SIF) in straight lugs of Aluminum 7075-T6. Extended finite element method (XFEM) capability available in ABAQUS is used to calculate the stress intensity factor. Crack growth and fatigue life of single through-thickness and single quarter elliptical corner cracks in attachment lug are estimated and then compared with the available experimental data for two different load ratios equal to 0.1 and 0.5. The SIF calculated from XFEM shows that the introduction of different loading boundary conditions significantly affect the estimated fatigue life.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Numerical methods in engineering · Non-Destructive Testing Techniques
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References (28)
Show source-provided references
1. A critical analysis of crack propagation10.1115/1.3656900 ↗
2. Walker EK. The effect of stress ratio during crack propagation and fatigue for 2024-T3 and 7076-T6 aluminum. In: Effect of environment and complex load history on fatigue life. ASTM STR 462. Philadelphia: American Society for Testing and Materials; 1970. p. 1–4.10.1520/STP32032S ↗
3. The significance of fatigue crack closure
4. Fatigue crack growth in lugs10.1111/j.1460-2695.1979.tb00377.x ↗
5. Friedrich S, Schijve J. Fatigue crack growth of corner cracks in lug specimens. Report LR-375. Delft Un. of Tech., Fac. of Aerospace Eng.; 1983.
6. Erdogan F, Roberts R. A comparative study of crack propagation in plates under extension and bending. In: Proc int conf on fracture, Sendai, Japan; 1965.
7. A new driving force parameter for crack growth in aluminum alloy10.1016/S0142-1123(01)00023-8 ↗
8. Cumulative model of fatigue crack growth and the crack closure effect10.1016/0142-1123(84)90007-0 ↗
9. A model of fatigue crack growth based on Dugdale model and damage accumulation10.1007/BF00035077 ↗
10. Fracture analysis of surface- and through-cracked sheets and plates10.1016/0013-7944(73)90046-5 ↗
11. Stress intensity factor for two symmetric corner cracks
12. Newman Jr. JC. Predicting failure of specimens with either Surface cracks or corner at holes. NASA TN D-8244; 1976.
13. Newman Jr. JC, Raju IS. Stress intensity factor for cracks in three dimensional finite bodies subjected to tension and bending loading. In: NASA technical memorandum 85793, 1984.10.1520/STP37074S ↗
14. Kathiresan K, Hsu TM. Advanced life analysis methods-crack growth, analysis methods for attachment lugs. AFWAL-TR-84-3080, vol. II; 1984.
15. Study on expression of SIF for tapered lug subjected to oblique pin-load10.1016/S1350-6307(97)00004-6 ↗
16. Pian THH, Mar JW, Orringer O, Stalk G. Numerical computation of stress intensity factors for aircraft structural details by finite element methods. AFFDL-TR-76-12; 1976.
17. Aberson JA, Anderson JM. Cracked finite-elements proposed for NASTRAN. Third NASTRAN users’ colloquium, NASA TMX-2893; 1973. p. 531–50.
18. Application of finite element analysis techniques for predicting crack propagation in lugs10.1016/0142-1123(80)90014-6 ↗
19. Cracks emanating from pin-loaded lugs10.1016/0013-7944(94)90235-6 ↗
20. An automated finite element procedure for fatigue crack propagation analyses10.1016/0013-7944(84)90137-1 ↗
21. Some aspects of corner fatigue crack growth from holes10.1016/0142-1123(91)90247-V ↗
22. Fatigue crack growth modeling of attachment lugs10.1016/j.ijfatigue.2013.03.016 ↗
23. Elastic crack growth in finite elements with minimal remeshing10.1002/(SICI)1097-0207(19990620)45:5<601::AID-NME598>3.0.CO;2-S ↗
24. A finite element method for crack growth without remeshing10.1002/(SICI)1097-0207(19990910)46:1<131::AID-NME726>3.0.CO;2-J ↗
25. Extended finite element method for three-dimensional crack modelling10.1002/1097-0207(20000820)48:11<1549::AID-NME955>3.0.CO;2-A ↗
26. Dassault Systèmes: Abaqus 6.13 online documentation. Dassault Systèmes, Providence, Rhode Island; 2013.
27. The partition of unity method10.1002/(SICI)1097-0207(19970228)40:4<727::AID-NME86>3.0.CO;2-N ↗
28. Dowling · 2007