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A method for space truss analysis in the post‐buckling range
Author(s) -
Schmidt Lewis C.,
Gregg Bernhard M.
Publication year - 1980
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620150207
Subject(s) - truss , structural engineering , linearization , stiffness , nonlinear system , piecewise , mathematics , type (biology) , buckling , range (aeronautics) , engineering , mathematical analysis , physics , geology , quantum mechanics , aerospace engineering , paleontology
A dual load method of truss analysis is presented that allows highly nonlinear member behaviour to be followed. In particular, a brittle type of strut behaviour is considered. The method assumes that the inelastic strut response is known and that piecewise linearization of the behaviour is acceptable. An example is given to illustrate the type of problem that can be handled. The example involves negative stiffness of the members and consequently attention must be given to the equation solving procedure for the structure. A comparison is made with some observed test results.