PSI - Issue 14

Sanjeev M Kavale et al. / Procedia Structural Integrity 14 (2019) 584–596 Sanjeev M. Kavale, Krishnaraja G Kodancha, Nagaraj Ekbote / Structural Integrity Procedia 00 (2018) 000–000

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The magnitude of normalized T 11 at the center is increasing with the increase in Poisson’s ratio. The difference in normalized T 11 between center and surface for the specimen with higher Poisson’s ratio is more as compared to the specimen with lesser Poisson’s ratio. Also the magnitude of normalized T 11 -Stress at the center is reducing as B/W increases for a given Poisson’s ratio. While, the magnitude of normalized T 33 -Stress at the center is increasing as B/W increases for a given Poisson’s ratio. The created polynomials for finding out the maximum magnitudes of SIF and T ij for various B/W, Poisson’s ratio and a/W = 0.50 are useful for the researchers and practitioners in the field of fracture analysis. An error of 8.86 %, 12.7% and 6.3% is observed for K I , T 11 and T 33 respectively for the available experimental and FE results compared to generated polynomials. References Aliha, M., & Saghafi, H. (2013). The effects of thickness and Poisson’s ratio on 3D mixed-mode fracture. Engineering Fracture Mechanics, 98, 15-28. Anderson, T. L. (2004). Fracture Mechanics: Fundamentals and Applications. CRC: Press-Book. Giner, E., Fernandez-Zuniga, D., Fernandez_Saez, J., & Fernandez-Canteli, A. (2010). On the JzI-integral and the out of plane constraint in a 3D elastic cracked plate loaded in tension. International Journal of Solids and Structures, 47, 934-946. Gonzalez-Albuixech, V. F., Giner, E., Fernandez-Saez, J., & Fernandez-Canteli, A. (2011). Influence of the T33-Stress on the 3D stress statearound corner cracksin an elastic plate. Engineering Fracture Mechanics, 78, 412-427. Gosz, M., Dolbow, J., & Moran, B. (1998). Domain Integral Formulation for Stress Intensity Factor Computation Along Curved Three Dimensional Interface Cracks. International Journals of Solids and Structures, 35, 1763-1783. Guo, W. (1999). Three dimensional analysis of plastic constraint for through thickness cracked bodies. Engineering Fracture Mechanics, 62, 383 407. Guian, Q., González-Albuixech, V. F., Niffenegger, M., & Giner, E. (2016). Comparison of KI calculation methods. Engineering Fracture Mechanics, 156, 52–67. Irwin, G. R. (1958). Fracture. In Handbuch der Physik VI. Katanchi, B., Choupani, N., Khalil-Allafi, J., Tavangar, R., & Baghani, M. (2017). Mixed-mode fracture of a superelastic NiTi alloy: Experimental and numerical investigations. Engineering Fracture Mechanics, 15 December , Accepted Manuscript. Kim, Y., & Son, B. (2004). Elastic-plastic Finite Element Analysis for Double-Edge Cracked Tension (DE (T)) Plates. Engineering Fracture mechanics, 77, 945-966. Kim, Y., Zhu, X. K., & Chao, Y. J. (2001). Quantification of constraint on elastic–plastic 3D crack front by the J–A2 three-term solution. Engineering Fracture Mechanics, 68, 895–914. Kodancha, K. G. (2012). 3D Finite element analyses on constraint issues in fracture using CT and SENB specimens. Belguam, India: Ph.D thesis, VTU, . Kodancha, K. G., & Kudari, S. K. (2009). Variation of Stress Intensity Factor and Elastic T-stress Along the Crack Front in Finite Thickness Plate. Fracture ed Integrita Structurale, 8, 45-51. Kodancha, K. G., & Kudari, S. K. (2010). Stress Triaxiality dependant In-Plane and Out-Of-Plane constraint effects in a CT Specimen. Proceedings of NAME. Kudari, S. K., & Kodancha, K. G. (2014). A new formulation for estimating maximum stress intensity factor at the mid plane of a SENB specimen: Study based on 3D FEA. Frattura ed Integrità Strutturale, 29, 419-425. Kudari, S. K., & Kodancha, K. G. (2017). 3D Stress intensity factor and T-stresses (T11 and T33) formulations for a Compact Tension specimen. Frattura ed Integrità Strutturale, 39, 216-225. Kwon, S. W., & Sun, C. T. (2000). Characteristics of three-dimensional stress fields in plates with a through -the-thickness crack. Int. J. Fract, 104, 291-315. Meshii, T., & Tanaka, T. (2010). Experimental T33-stress formulations of test specimen thickness effect on fracture toughness in the transition temperature region. Engineering Fracture Mechanics, 77, 867-877. Nakamura , T., & Parks , D. M. (1988). Three dimensional stress fields near crack front of a thin elastic plate. Journal of Applied Mechanics, 55, 805-813. O'Dowd, N. P., & Shih, C. F. (1992). Family of Crack Tip Fields Characterised by a Triaxiality Parameter-I Structure of Fields,. Journal of the Mechanics and Physics of Solids, 39, 989-1015. Pavel, H., Martin, S., Lubos, N., Michal, Z., Stanislav, S., Zdenek, K., & Alfonso, F.-C. (2010). Fracture mechanics of the three-dimensional crack front: vertex singularity versus out of plain constraint descriptions. Procedia Engineering, 2, 2095–2102. Perl, M., & Ore, E. (1986). Effect of Geometry and Poisson Ratio on Stress-Intensity Factors in a SEN Specimen under Fixed-Grip Conditions. Engineering Fracture Mechanics, 23, 843-849. Petti, J. P., & Dodd Jr, R. H. (2004). Constraint comparisons for common fracture specimens: C(T)s and SE(B)s. Engineering Fracture Mechanics, 71, 2677-2683. Priest, A. H. (1975). Experimental methods for fracture toughness measurement. J. Strain Analysis, 10, 225-232. Sherry, A. H., France , C. C., & Goldthorpe, M. R. (1995). Compendium of T-stress Solutions for Two and Three Dimensional Cracked Geometries. Fatigue and Fracture of Engineering Materials and Structures, 18, 141-155. Shlyannikov, V. N., Boychenko, N. V., Tumanov, A. V., & Fernández-Canteli, A. (2014). The elastic and plastic constraint parameters for three dimensional problems. Engineering Fracture Mechanics, 127, 83–96. Williams, M. L. (1957). On the Stress Distribution at the Base of a Stationary Crack. Journal of Applied Mechanics, 24, 109–114.