Bending Fatigue Behavior Analysis and Fatigue Life Prediction of Spot-Welded Steel T-Profiles: An XFEM Analysis

Steel T-profiles are extensively used across various sectors due to their versatility and reliability. Spot welding plays a crucial role in their production. These profiles are subjected to cyclic bending loads in numerous engineering applications. Understanding the failure mechanisms is essential f...

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Main Author: Murat Demiral
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Vehicles
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Online Access:https://www.mdpi.com/2624-8921/6/4/107
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author Murat Demiral
author_facet Murat Demiral
author_sort Murat Demiral
collection DOAJ
description Steel T-profiles are extensively used across various sectors due to their versatility and reliability. Spot welding plays a crucial role in their production. These profiles are subjected to cyclic bending loads in numerous engineering applications. Understanding the failure mechanisms is essential for enhancing fatigue resistance and extending the operational lifespan of spot-welded assemblies. Key aspects include accurately predicting where damage initiates, how it propagates under increasing cyclic loads, and the failure point. For this purpose, XFEM analysis was conducted and validated with experimental results from the literature. The study emphasizes the significant impact of bending moment magnitude, load ratio, the diameter of spot welds, and component thickness on the fatigue performance of spot-welded assemblies under bending loads. All these parameters significantly affected the fatigue response. Notably, thinner components showed 8.55 times faster crack propagation, accompanied by more localized and severe cracking.
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spelling doaj-art-524e768eeae84a0480b253f2848e72942025-08-20T02:01:14ZengMDPI AGVehicles2624-89212024-12-01642195220810.3390/vehicles6040107Bending Fatigue Behavior Analysis and Fatigue Life Prediction of Spot-Welded Steel T-Profiles: An XFEM AnalysisMurat Demiral0College of Engineering and Technology, American University of the Middle East, Egaila 54200, KuwaitSteel T-profiles are extensively used across various sectors due to their versatility and reliability. Spot welding plays a crucial role in their production. These profiles are subjected to cyclic bending loads in numerous engineering applications. Understanding the failure mechanisms is essential for enhancing fatigue resistance and extending the operational lifespan of spot-welded assemblies. Key aspects include accurately predicting where damage initiates, how it propagates under increasing cyclic loads, and the failure point. For this purpose, XFEM analysis was conducted and validated with experimental results from the literature. The study emphasizes the significant impact of bending moment magnitude, load ratio, the diameter of spot welds, and component thickness on the fatigue performance of spot-welded assemblies under bending loads. All these parameters significantly affected the fatigue response. Notably, thinner components showed 8.55 times faster crack propagation, accompanied by more localized and severe cracking.https://www.mdpi.com/2624-8921/6/4/107cyclic bending loadsXFEM analysisspot weld diameterfailure mechanismscomponent thickness
spellingShingle Murat Demiral
Bending Fatigue Behavior Analysis and Fatigue Life Prediction of Spot-Welded Steel T-Profiles: An XFEM Analysis
Vehicles
cyclic bending loads
XFEM analysis
spot weld diameter
failure mechanisms
component thickness
title Bending Fatigue Behavior Analysis and Fatigue Life Prediction of Spot-Welded Steel T-Profiles: An XFEM Analysis
title_full Bending Fatigue Behavior Analysis and Fatigue Life Prediction of Spot-Welded Steel T-Profiles: An XFEM Analysis
title_fullStr Bending Fatigue Behavior Analysis and Fatigue Life Prediction of Spot-Welded Steel T-Profiles: An XFEM Analysis
title_full_unstemmed Bending Fatigue Behavior Analysis and Fatigue Life Prediction of Spot-Welded Steel T-Profiles: An XFEM Analysis
title_short Bending Fatigue Behavior Analysis and Fatigue Life Prediction of Spot-Welded Steel T-Profiles: An XFEM Analysis
title_sort bending fatigue behavior analysis and fatigue life prediction of spot welded steel t profiles an xfem analysis
topic cyclic bending loads
XFEM analysis
spot weld diameter
failure mechanisms
component thickness
url https://www.mdpi.com/2624-8921/6/4/107
work_keys_str_mv AT muratdemiral bendingfatiguebehavioranalysisandfatiguelifepredictionofspotweldedsteeltprofilesanxfemanalysis