Nisha Rani,
Neeraj Bisht,
- Research Scholar, Govind Ballabh Pant University of Agriculture and Technology, PantnAgar, UTTARAKHAND, India
- Assistant Professor, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, UTTARAKHAND, India
Abstract
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Studying the impact of higher order terms of the William’s series expansion on fracture mechanics problems has received more attention in recent years. Research has demonstrated that the constant term T-stress has a significant impact on the stress and strain fields around the crack tip. In response to mixed mode (I/II) loading, a number of fracture criteria had been developed to characterize failure in linear elastic bodies. When evaluating the residual life in structures with micro-cracks, stress intensity factor (SIF) and T-stress are crucial factors to be considered in fracture mechanics. In this research, SIF and T-stress are computed using finite element method. At crack tip, higher order elements were utilized to depict the behavior of displacement. There are various technique to obtain T stress. Here finite element method is applied in a new test specimen and examined. It is possible to evolve fracture parameters like T-stress of an unsymmetrical cracks originating from the hole edges under tension. T-stress at the crack tip had drawn attention; nonetheless, majority of the theoretical studies had been seen for single-crack problems, with relatively less information available regarding closed form solutions for T-stress at the tips under biaxial loading. A summary of T-stress is provided in this research study to better understand how T-stress varies with respect to the crack inclination angle, hole diameter, and biaxial load factor. The objective is to propose a finite element technique for numerical analysis in ANSYS APDL software in 2D. The current study uses correlation counterplots between T-stress and stress intensity factor to better understand the structural integrity of the specimen.
Keywords: Fracture Mechanics, t-stress, unsymmetrical cracks, finite element method
[This article belongs to Journal of Materials & Metallurgical Engineering (jomme)]
Nisha Rani, Neeraj Bisht. Evaluation of T-stress using FEM in an Unsymmetrical Cracks Emanating from a Hole Placed Centrally in a Thin Plate. Journal of Materials & Metallurgical Engineering. 2024; 14(02):09-20.
Nisha Rani, Neeraj Bisht. Evaluation of T-stress using FEM in an Unsymmetrical Cracks Emanating from a Hole Placed Centrally in a Thin Plate. Journal of Materials & Metallurgical Engineering. 2024; 14(02):09-20. Available from: https://journals.stmjournals.com/jomme/article=2024/view=175674
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Journal of Materials & Metallurgical Engineering
| Volume | 14 |
| Issue | 02 |
| Received | June 6, 2024 |
| Accepted | July 11, 2024 |
| Published | August 16, 2024 |