Comparative Study of FE-models and Material Data for Fatigue Life Assessments of Welded Thin-walled Cross-beam Connections

Gorash, Yevgen; Comlekci, Tugrul; Mackenzie, Donald

doi:10.1016/j.proeng.2015.12.612

Cited by 12 publications

(12 citation statements)

References 7 publications

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“…It detects critical locations for fatigue damage in the system and the fatigue damage risk distribution throughout the system and calculates realistic fatigue lifetimes. [34][35][36] The most effective way of fatigue evaluation is postprocessing of FEA results of structural analysis in the form of stress/strain fields (geometry input) in combination with the input of load history and fatigue material data. 34 Gawande et al 37 determined a relevance between experimental test results and nCode DesignLife results.…”

Section: Introductionmentioning

confidence: 99%

Experimental, analytical, and numerical investigations on the flexural and fatigue behavior of steel thin-walled X-section beam

İrsel

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Thin-walled hollow shapes are of great interest in many industries with weight constraints, due to their availability, low price, and strength-to-weight ratio. This paper presents the development, calculation, and production of a thin-walled X-section beam design with a unique section geometry. This hollow X-section beam geometry is a beam that has been developed to use shape-connected jaws on the beam and to use less bolts and mounting elements, and to easily change the positions of the parts mounted on the beam. The bending strength of this unique beam section was investigated, and the fatigue damage of the beam was also handled with technological methods. Using both experimental stress measurements and finite element solution, the static and fatigue strength of the beam were calculated with computer-aided engineering software. The FEM solution was performed nonlinearly by defining the linear elastic and plasticity properties of the material. Validation studies were carried out in the laboratory using three-point and four-point bending tests. These traditional experiments were supported by strain gauge technology that measures strain with 0.05% accuracy. The weight and bending strength of the X-section beam were compared with the hollow section square beam. X-section beam (S355J0H) has 13% lower bending strength than 120 × 120 × 8 mm (S355J0H) beam; however, it is 37% lighter. ANSYS-analytical test results of difference are 3.95%, and ANSYS-experimental test results of difference are 0.85%. Experiments showed that a ∼22% increase in strength is found in these corners depending on the production method. The fatigue behavior of the X-section beam was determined with the nCode DesignLife software using validated FEM solutions and fatigue curves of the materials. X-section beam developed for shape–connected assembly systems can be used especially in the formation of chassis with its superior assembly ability and bending strength, increasing functionality, and production speed.

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Section: Introductionmentioning

confidence: 99%

Experimental, analytical, and numerical investigations on the flexural and fatigue behavior of steel thin-walled X-section beam

İrsel

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Finally, the chassis structure should be evaluated from the stress and fatigue perspective. Hence, (Gorash et al, 2015) investigated the effect of fatigue data and finite element states on the accuracy of estimating the remaining life of a sample under repetitive fatigue conditions. To determine the failure location and estimate the fatigue life, the Volvo method is implemented and the effect of parameters such as thickness, bending, and average stress according to BS7608 was considered.…”

Section: Introductionmentioning

confidence: 99%

Fatigue and Stress Analysis of a Load Carrying Car Chassis with Reinforced Joint Using Finite Element Method

Babamiri¹

2021

revistageintec

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In this article, a case study of a load-carrying vehicle chassis with various loading conditions in six maneuvers has been conducted. These maneuvers include acceleration and deceleration in a loaded and un-loaded situation, drops, pothole, turn, and sinusoidal obstacles. Finite element analysis has been implemented in order to calculate stress distribution and fatigue life. Stress analysis indicated that the joints stiffness is higher where the auxiliary profiles were utilized. However, this procedure is cumbersome and auxiliary plates would be a more efficient strategy. The effects of using auxiliary plates have been investigated in the fatigue and stress distribution of the aforementioned chassis. The analysis revealed that the 300 mm drop has the maximum tension and accordingly embodies the shortest fatigue life. Furthermore, for welding joints, three different strategies for geometry configuration including welding bead, reinforcing plates, and extra auxiliary profiles under the welded joints were assumed.

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“…However, several methods have been developed to ensure accuracy of structural stress, which plays an important role in determining the life of any welded structure. Many problems related to experimental manipulations can be overcome using FEA [12,[15][16][17]. Several research works propose FE-based techniques to calculate and evaluate the structural stress.…”

Section: Introductionmentioning

confidence: 99%

Fatigue life assessment of welded joints in a crane boom using different structural stress approaches

Riad

Hamri

Sfarni

2019

JMES

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This article presents a study of the fatigue strength of welded parts in a crane boom. First, a finite element analysis was carried out over the whole structure. Two critical welded zones were identified and a detailed analysis was carried on them, in the form of sub-models. Three different approaches for estimating the structural stress in welded zones, were presented and applied to each sub-model. Results were compared and discussed. The evaluation of fatigue resistance by the use of appropriate S-N curves for each method was also carried out and discussed. The use of these approaches on a complex industrial structure, and on tubular joints with hollow sections required to perform many adaptations and to solve several difficulties presented hereafter.

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Comparative Study of FE-models and Material Data for Fatigue Life Assessments of Welded Thin-walled Cross-beam Connections

Cited by 12 publications

References 7 publications

Experimental, analytical, and numerical investigations on the flexural and fatigue behavior of steel thin-walled X-section beam

Experimental, analytical, and numerical investigations on the flexural and fatigue behavior of steel thin-walled X-section beam

Fatigue and Stress Analysis of a Load Carrying Car Chassis with Reinforced Joint Using Finite Element Method

Fatigue life assessment of welded joints in a crane boom using different structural stress approaches

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