CALCULATION OF CANTILEVER TRUSS BEAM DEFORMATIONS USING CONTINUUM MODELING
TODOROVIC M. 1, DEDIC M. 2 (1) HIGHER TECHNICAL MECHANICAL SCHOOL, R. KRSTICA STREET 19, 37240 TRSTENIK, REPUBLIC OF SERBIA
(2) FACULTY OF MECHANICAL ENGINEERING IN KRALJEVO, UNIVERSITY OF KRAGUJEVAC, DOSITEJEVA 19, 36000 KRALJEVO, REPUBLIC OF SERBIA
Deformation analysis of beam-like truss structures can be significantly simplified if it is replaced by a continuum beam with bulk cross-section, so that ordinary formulas from Strength of materials can be used. An energy method is applied to calculate the equivalent bending and shearing stiffnesses for a truss cantilever beam with repeated cells loaded by a force at its free end. Different types of filling bars pattern and supports combination are analyzed. The procedure is generalized the truss simple beams, and demonstrated on examples of the end deflection and end slope calculation. Results obtained are analyzed for different ratios of number of cells and ratios of bars cross-section.
