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Shear Lag Factor for Longitudinally Welded Tension Members using Finite Element Method

Dhungana, Utsab
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1396533043

Abstract Details

2014, MS, University of Cincinnati, Engineering and Applied Science: Civil Engineering.
This thesis studies the shear lag factor for longitudinally welded tension member using Finite Element Method with the application of damage mechanics. Current AISC provisions for shear lag factor lacks any specifications for connections with distance between weld length shorter than length of weld and unequal weld length on each side of specimen. So, the main focus of this paper was to expand the shear lag provisions to overcome the current shortcomings in AISC specifications with the help of new sets of equation proposed by Fortney and Thornton (2010). Three experimental models; one for each plate, angle and channel; were initially modeled in finite element (ABAQUS) to verify the finite element procedure. Load vs. displacement curves for all three models were found to tally with the experimental results. 23 new connections were designed to represent various connection parameters and they were modeled in finite element. Current design provisions were found to be conservative for plates. Shear Lag factor for plates were always greater than 0.90 for weld length greater than distance between welds and unequal weld length of each side. It was proposed to be 0.72 for short weld connections. Shear lag factor for specimens with eccentricity were found to be well represented by current provisions.
James Swanson, Ph.D. (Committee Chair)
Thomas Baseheart, Ph.D. (Committee Member)
Gian Rassati, Ph.D. (Committee Member)
133 p.
Civil Engineering
Shear Lag Factor; Abaqus; Finite Element Method; Welded; Tension Member

Recommended Citations

Citations

  • Dhungana, U. (2014). Shear Lag Factor for Longitudinally Welded Tension Members using Finite Element Method [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1396533043

    APA Style (7th edition)

  • Dhungana, Utsab. Shear Lag Factor for Longitudinally Welded Tension Members using Finite Element Method. 2014. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1396533043.

    MLA Style (8th edition)

  • Dhungana, Utsab. "Shear Lag Factor for Longitudinally Welded Tension Members using Finite Element Method." Master's thesis, University of Cincinnati, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1396533043

    Chicago Manual of Style (17th edition)

ucin1396533043
4,933
© 2014, some rights reserved.Creative Commons License Shear Lag Factor for Longitudinally Welded Tension Members using Finite Element Method by Utsab Dhungana is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.