This study investigates the applicability of a stress-based approach to multiaxial fatigue strength assessmentof fillet-welded tubular T-joints, used in the so-called ‘‘H” component of an agricultural sprayer.Experimental strain measurements on such a structural component under sprayer service conditionshave been performed. A finite element analysis of the component is herein developed under linear elastichypothesis. Finally, a stress-based critical plane criterion is applied to several material points located inthe proximity of the intersection between the end of a brace and a chord of one above-mentioned T-joint,where crack nucleation is experimentally observed.

Fatigue life estimation of fillet-welded tubular T-joints subjected to multiaxial loading

RONCHEI, Camilla;
2017

Abstract

This study investigates the applicability of a stress-based approach to multiaxial fatigue strength assessmentof fillet-welded tubular T-joints, used in the so-called ‘‘H” component of an agricultural sprayer.Experimental strain measurements on such a structural component under sprayer service conditionshave been performed. A finite element analysis of the component is herein developed under linear elastichypothesis. Finally, a stress-based critical plane criterion is applied to several material points located inthe proximity of the intersection between the end of a brace and a chord of one above-mentioned T-joint,where crack nucleation is experimentally observed.
Agricultural sprayerCritical plane-based criterionFatigueMultiaxial loadingT-joint
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/304670
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