TY - EJOU
AU - Liu, JF
AU - Chen, C
AU - Shao, YB
AU - Yuan, WF
TI - Determination of Yield Lines for Circular Tubular T-joints under Axial Compression
T2 - Structural Longevity
PY - 2009
VL - 2
IS - 2
SN - 1944-6128
AB - 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.
KW - Yield line
KW - circular tubular T-joints
KW - axial compression
DO - 10.3970/sl.2009.002.129