G. Ramesh et Cs. Krishnamoorthy, POSTBUCKLING ANALYSIS OF STRUCTURES BY DYNAMIC RELAXATION, International journal for numerical methods in engineering, 36(8), 1993, pp. 1339-1364
The paper presents a displacement incrementation procedure to handle m
ultiple loadings in post-buckling analysis of structures by Dynamic Re
laxation (DR). This procedure is generalized and a 'variable-arc-lengt
h' method is proposed to automate the tracing of load-deflection path.
The resulting algorithm exactly traces limit points and can handle 's
nap-through' or 'snap-back' problems. The efficiency of the proposed m
ethod is demonstrated by typical examples of truss, beam and shell str
uctures.