Effect of Fillet Welds on Initial Rotational Stiffness of Welded Tubular Joints

Garifullin, Marsel; Bronzova, Maria; Jokinen, Timo; Heinisuo, Markku; Kovačić, Boštjan

doi:10.1016/j.proeng.2016.11.905

Cited by 10 publications

(6 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, the observed error increases with the rise of the weld size, leading to a significant overestimation of resistance for 10 mm welds. This fact can be explained by the improving effect of fillet welds: welds enlarge the cross-section of the brace in the contact area, increasing thus the total length of the yield mechanism and the resistance of the joint [41]. Currently, this effect is not considered in EN 1993-1-8:2005, leading to a very conservative theoretical resistance for the joints with large fillet welds.…”

Section: Hamk Testsmentioning

confidence: 99%

Finite element model for rectangular hollow section T joints

Garifullin

Pajunen

Mela

et al. 2018

RakMek

Self Cite

View full text Add to dashboard Cite

Major developments in hardware and software enable researchers and engineers to apply non-linear finite-element analyses to study the behavior of tubular structures. However, to provide reasonable results, constructed finite element models should be verified and validated with experimental data. This article develops a finite element model for high strength steel rectangular hollow section T joints. The joints are considered under in-plane bending moment and axial brace loading. The paper determines the most suitable finite elements and the number of layers in the thickness direction for the numerical assessment of initial stiffness and modeling the whole action-deformation behavior of joints. Finally, the proposed FE model is validated with the series of experimental tests. The validation shows that the developed model properly captures the local behavior of tubular joints and can efficiently serve as a reliable tool in routine numerical analyses.

show abstract

Section: Hamk Testsmentioning

confidence: 99%

Finite element model for rectangular hollow section T joints

Garifullin

Pajunen

Mela

et al. 2018

RakMek

Self Cite

View full text Add to dashboard Cite

show abstract

“…The smallest ratios Mult / Mpl are observed for the cases S700_S700_a6, S700_S700_a10 and S700_S700_1/2v. These joints have nominal β = 0.80; however, fillet welds increase the ratio β, making it close to 0.85 and even greater [24], particularly in case S700_S700_a10. For these reason, these joints behave similar to those with β > 0.85 and demonstrate a very inconsiderable hardening phase.…”

Section: Resultsmentioning

confidence: 99%

Experimental moment resistance of rectangular hollow section T joints

Garifullin

2018

MATEC Web Conf.

Self Cite

View full text Add to dashboard Cite

Resistance is the main property of tubular joints. The determination of the joint resistance from the experimental load-deformation curve always represents a challenging task. Currently there are two main methods to find the experimental resistance, which are called plastic and ultimate resistance. However, there is no single opinion on which one should be commonly used. Based on the experimental results, this paper directly compares the two existed approaches. The study is restricted to welded square hollow section T joints under in-plane bending moment. The paper considers only the joints with β < 0.85, i.e. when the behaviour of the joint is governed by chord face failure. The results show that plastic resistance leads to more conservative results than ultimate resistance, providing thus safer results. However, attention should be also paid to the difference between the labour intensity of the presented methods.

show abstract

“…In structural analysis the connection of brace and chord uses hinges. In reality there are moments, because of the welding line which is around the brace (Garifullin, 2016). It is necessary to do research on normal-forces and on bending moments.…”

Section: Literature Reviewmentioning

confidence: 99%

“…When there is a higher β the rotational stiffness is also higher. Times now no analytical method exists to calculate initial rotational stiffness of welded tubular RHS joints (Garifullin, 2016). In many papers, authors conclude that a lot of research has to be done to the joints with tubular members.…”

Section: Literature Reviewmentioning

confidence: 99%

Case Studies on Finite Element Modeling of Welded Joints

Heinemann

Isopescu

Maxineasa

2021

Bulletin of the Polytechnic Institute of Iași. Construction. Architecture Section

View full text Add to dashboard Cite

Joints made out of tubular steel members are often used in industrial constructions, like offshore, trusses or tree-shaped columns. The joint area is the weakest point in a truss structure. Beside the normal static behaviour many non-linearities due to the geometry or to the welding process have to take into account. Steel hollow sections are often used. Much research was made on welded nodes so far, but mostly it is valid for limited geometries or load cases. A review of the main aspects in designing welded nodes are given. The second part is about a study of two aspects. The first aim is to investigate the influence of the joint angle on the resistance of a T-joint made out of Circular-Hollow-Sections or Squared-Hollow-Sections under a tensional load. To archive the most realistic results, the second aspect, a numerical study on the finite element types and the element shape functions will be made.

show abstract

Effect of Fillet Welds on Initial Rotational Stiffness of Welded Tubular Joints

Cited by 10 publications

References 13 publications

Finite element model for rectangular hollow section T joints

Finite element model for rectangular hollow section T joints

Experimental moment resistance of rectangular hollow section T joints

Case Studies on Finite Element Modeling of Welded Joints

Contact Info

Product

Resources

About