New reduction factor for cracked multi-planar square hollow section TT-, YT- and KT-joints

Lie, S.T.; Vipin, S.P.; Li, Tao

doi:10.1016/j.engstruct.2017.02.041

Cited by 3 publications

(2 citation statements)

References 12 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, a typical cracked multiplanar SHS YT-joint with 20000 elements can be generated within 4 minutes. Further in-depth discussion about the validation and advantages of the new FE mesh generator is outside the main scope the current manuscript and it is available in other previously published works of the authors [10][11][12][13][14].…”

Section: Meshing Details and The Benefits Of Using The New Fe Mesh Gementioning

confidence: 99%

Safety Assessment of Damaged Multi-planar Square Hollow Section Welded Joints Using the New BS 910:2013+A1:2015

Lie¹

2019

AAS

View full text Add to dashboard Cite

The safety assessment procedure in the new BS 7910:2013+A1:2015 guide is based on the failure assessment diagram (FAD) method. This paper aims to validate the above procedure for complex geometries such as damaged multi-planar square hollow section (SHS) welded joints and to recommend optimal solutions if necessary. FAD curves are constructed for cracked multi-planar SHS TT-, YT-and KT-joints for the first time and are compared with the Option 1 curve of the BS guide. A robust novel automatic finite element (FE) mesh generator, which is validated using the full-scale experimental test results, is used in this study. The new FE mesh generator addresses the issue of non-convergence by using a keyhole for the modelling the crack tip in elastic-plastic analyses. The new FE mesh generator is capable to model cracks and geometries of arbitrary dimensions and is able to achieve convergence of solutions even at a high plastic deformation. It is shown to be aiding in speedy generation of cracked FE mesh models which is otherwise time consuming to generate using commercial software packages. The results show that the Option 1 curve does not always guarantee safe solutions for multi-planar SHS welded joints. Hence, a penalty factor of 1.1 is recommended to be used to calculate the plastic collapse load. The use of proposed penalty factor gives optimal solutions for cracked multi-planar SHS TT-, YT-and KT-joints.

show abstract

Section: Meshing Details and The Benefits Of Using The New Fe Mesh Gementioning

confidence: 99%

Safety Assessment of Damaged Multi-planar Square Hollow Section Welded Joints Using the New BS 910:2013+A1:2015

Lie¹

2019

AAS

View full text Add to dashboard Cite

show abstract

“…Detailed discussion on the experimental test setup and the loading protocol is outside the main purview of the current manuscript. Further in-depth discussion about the validation of the new FE mesh generator is also available in other previously published works of the authors [10][11][12][13][14].…”

Section: New Finite Element Mesh Generator and Validationmentioning

confidence: 99%

Failure assessment of cracked uni-planar square hollow section T-, Y- and K-joints using the new BS 7910:2013+A1:2015

2018

View full text Add to dashboard Cite

This paper covers the validation of standard safety assessment procedure in the new BS 7910:2013+A1:2015 for cracked uni-planar square hollow section (SHS) T-, Y-and K-joints using the finite element analyses. The procedure is based on the failure assessment diagram (FAD) method. A completely new and robust finite element mesh generator is developed, and it is validated using the full-scale experimental test results. FAD curves are constructed using the elastic J-integral (J e), the elastic-plastic J-integral (J ep) and the plastic collapse load (P c) values calculated using the 3D cracked models of the joints. The results reveal that the standard Option 1 FAD curve of the new BS code is not always safe in assessing the safety and integrity of cracked uni-planar SHS joints. Therefore, a penalty factor of 1.2 for plastic collapse load is recommended to move all the constructed Option 3 FAD curves above the standard Option 1 curve. The new Option 3 FAD curves are found to generate optimal solutions for cracked uni-planar SHS T-, Y-and K-joints.

show abstract

Experiment and design investigation of a multi-planar joint in a transmission tower

Deng

Cai

et al. 2018

Journal of Constructional Steel Research

View full text Add to dashboard Cite

New reduction factor for cracked multi-planar square hollow section TT-, YT- and KT-joints

Cited by 3 publications

References 12 publications

Safety Assessment of Damaged Multi-planar Square Hollow Section Welded Joints Using the New BS 910:2013+A1:2015

Safety Assessment of Damaged Multi-planar Square Hollow Section Welded Joints Using the New BS 910:2013+A1:2015

Failure assessment of cracked uni-planar square hollow section T-, Y- and K-joints using the new BS 7910:2013+A1:2015

Experiment and design investigation of a multi-planar joint in a transmission tower

Contact Info

Product

Resources

About