Numerical Simulation of Crack Growth in Dynamic Loading Conditions


Year : 2024 | Volume : 02 | Issue : 02 | Page : 30-34
    By

    Nishant Varshney,

  1. Student, Department of Mechanical Engineering, Amity School of Engineering and Technology, Noida, Uttar Pradesh, India

Abstract

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Because it is crucial for forecasting structural failures in engineering applications, crack formation in materials under dynamic loading circumstances has become a crucial study topic. In this work, finite element methods (FEM) are used to numerically simulate fracture propagation in dynamic stress situations. The impact of loading rates, material characteristics, and crack geometries on crack growth patterns are assessed in a thorough parametric research. The work uses sophisticated computational methods to accurately simulate crack initiation and propagation, including cohesive zone models and adaptive meshing. The crack path, velocity, and energy dissipation are all considerably impacted by dynamic loading, according to the results. Particularly, because of improved energy dissipation, lower loading rates produce more tortuous trajectories, whereas higher loading rates provide straighter fracture channels and faster crack velocities. The simulation framework’s integration of traction-separation laws and strain rate dependency enables precise modeling of material behavior in transient scenarios. The study also identifies the shortcomings of traditional linear elastic fracture mechanics (LEFM) in terms of describing dynamic phenomena and suggests ways to overcome these limitations using cohesive zone and time-dependent modeling techniques. The results offer important new information for creating structures and materials that can withstand dynamic fracture, which could lead to improvements in applications in civil, automotive, and aerospace engineering. This research also underscores the relevance of numerical techniques like FEM in expanding our understanding of dynamic fracture mechanics, bridging the gap between experimental findings and theoretical models.

Keywords: Crack growth, Dynamic loading, Numerical simulation, Finite element methods, Fracture mechanics

[This article belongs to International Journal of Fracture Mechanics and Damage Science ]

How to cite this article:
Nishant Varshney. Numerical Simulation of Crack Growth in Dynamic Loading Conditions. International Journal of Fracture Mechanics and Damage Science. 2025; 02(02):30-34.
How to cite this URL:
Nishant Varshney. Numerical Simulation of Crack Growth in Dynamic Loading Conditions. International Journal of Fracture Mechanics and Damage Science. 2025; 02(02):30-34. Available from: https://journals.stmjournals.com/ijfmds/article=2025/view=0


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Regular Issue Subscription Original Research
Volume 02
Issue 02
Received 10/01/2025
Accepted 15/01/2025
Published 22/01/2025
Publication Time 12 Days
111

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