Analytical and Numerical Investigation of Fatigue Life in Rectangular Plates with Opposite Semicircular Edge Single Notches

• DOI: 10.20944/preprints202308.0788.v1
• Publication Date: 2023-08-10T00:18:52Z
• Authors: Kristaq Hazizi; Mohammad Ghaleeh; Shafqat Rasool
• Keywords: stress concentration factors; fatigue notch factor; fatigue life; SolidWorks; finite element analysis (FEA); stress analysis; TA1-2040; 0101 mathematics; Engineering (General). Civil engineering (General); 01 natural sciences

Fatigue failure remains a critical concern in structural engineering and material science, prompting extensive research to understand predict the behaviour of materials under cyclic loading conditions. The present study aims investigate fatigue life carbon steel specimens containing opposite semicircular edge notches through comprehensive experimental numerical analysis. In this study, stress concentration factors (SCF, Kt) rectangular plate with are considered uniform tensile analyse notch deformation because stretching plate. Furthermore, focuses on quantifying (SCFs) for these based S-N curves steel. employs combination techniques influence performance structures. A single axial load creates near it is much larger than average Both analytical finite element methods used calculate maximum around notch. SOLIDWORKS Premium Student Edition 2023 has been employed modelling Simulation analysis factor size 31 mm x 25.4 6.35 mm. magnitude 20195 N applied one sides normal ratio h/r = 1, result obtained both compared percentage error evaluated. Subsequently, undergo testing varying conditions capture their behaviour. acquired data then plotted against amplitude construct curves, forming foundation assessing notched specimens. To complement findings gain deeper understanding phenomenon, simulations conducted using advanced (FEA) techniques. models carefully calibrated results ensure accuracy reliability. FEA enable determination at locations within specimens, further validating observations. investigation reveals crucial insights into effect allow engineers designers components similar notches, aiding development reliable durable structures practical applications. Moreover, determined from provide valuable assess potential modes optimise designs, effectively mitigating fatigue-related failures. approaches ensures rigorous offering basis making informed decisions. comparison between method Finite Element Method (FEM) demonstrated good agreement, an 4.272%. revealed that specimen would experience after approximately 2882 cycles, 395.914 MPa. This enhances contributes field mechanics. outcomes serve as resource professionals engaged engineering, design optimisation, ultimately leading safer more industrial contribute effects caused by notches. validated facilitate prediction aid determining failure. conclusion, highlights significance combining comprehensively information integrity assessment offer optimising criteria mitigate could play vital role enhancing reliability safety subjected analyses establish future studies exploring other geometries fostering advancements assessment.