Experimental investigation on stress concentration factors for diamond bird beak T-joints

L. W. Tong, D. Q. Yan, Y. Q. Liu, X. L. Zhao

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)

Abstract

For need of fatigue assessment, the behavior of hot spot stresses of diamond bird beak T-joints in SHS trusses were investigated experimentally under axial force and in-plane bending on the brace respectively. Seven specimens of T-joints were designed with different values of nondimensional geometric parameters β, 2γ and τ. The hot spot Stress Concentration Factor (SCF) distribution and the effects of β, 2γ and τ were presented and compared to the conventional SHS T-joints. It is concluded that the SCF in the chord is higher than that in the brace under axial tension, but the situation is reversed under in-plane bending. Both the crown and the saddle are all the possible positions where maximum SCF occurs under axial force. The diamond bird beak T-joints have much lower SCFs than the conventional SHS T-joints, and thus are expected to have better fatigue strength or larger fatigue life.

Original languageEnglish
Title of host publicationTubular Structures XIII - Proceedings of the 13th International Symposium on Tubular Structures
PublisherCRC Press
Pages523-528
Number of pages6
ISBN (Print)9780415584739
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event13th International Symposium on Tubular Structures, ISTS13 - Hong Kong, China
Duration: 15 Dec 201017 Dec 2010

Publication series

NameTubular Structures XIII - Proceedings of the 13th International Symposium on Tubular Structures

Conference

Conference13th International Symposium on Tubular Structures, ISTS13
Country/TerritoryChina
CityHong Kong
Period15/12/1017/12/10

ASJC Scopus subject areas

  • Civil and Structural Engineering

Fingerprint

Dive into the research topics of 'Experimental investigation on stress concentration factors for diamond bird beak T-joints'. Together they form a unique fingerprint.

Cite this