Vg. Ukadgaonker et Pa. Kale, FINITE-ELEMENT STRESS-ANALYSIS OF TUBESHEETS PERFORATED BY CIRCULAR HOLES IN SQUARE PITCH PATTERN, Journal of pressure vessel technology, 120(1), 1998, pp. 12-16
ASME has accepted the codes for the tubesheets with triangular pitch p
attern, but the code standards for the square pitch pattern have not b
een accepted so far. This is the motivation behind solving the present
problem. This paper deals with the finite element stress analysis of
a perforated plate or tubesheets with square pitch pattern. For the st
ress analysis, finite number of holes and in-plane and bending loading
are considered. Stress concentration factors are obtained for various
ligament efficiencies The problem of cracks emanating from holes is a
lso considered. Stress intensity factors for various crack lengths and
ligament efficiencies are obtained.