Open Access
ARTICLE
Determination of Yield Lines for Circular Tubular T-joints under Axial Compression
JF Liu1, C Chen2, YB Shao3, WF Yuan4
1 Dalian Maritime University, Dalian, China
2 Yantai University, Yantai, China
3 Yantai University, Yantai, China
4 Nanyang Technological University, Singapore
Structural Longevity 2009, 2(2), 129-137. https://doi.org/10.3970/sl.2009.002.129
Abstract
Yield line theory is commonly used for predicting the load carrying
capacity of a tubular joint. Theoretical method and numerical investigation have
both been carried out to determine the profile of yield lines on the chord surface
for a circular tubular T-joint under axial compression. Two yield lines in a form of
closed space curve are assumed to initiate when the axial compressive load reaches
a critical value. The first yield line is located along the weld toe, and the second
yield line is determined by minimum energy principle. Through finite element
simulation and verification, the theoretical method is evaluated to be effective and
reliable.
Keywords
Cite This Article
Liu, J., Chen, C., Shao, Y., Yuan, W. (2009). Determination of Yield Lines for Circular Tubular T-joints under Axial Compression.
Structural Longevity, 2(2), 129–137. https://doi.org/10.3970/sl.2009.002.129