✍ Scribed by L.M.C. Simões
No coin nor oath required. For personal study only.
An elastic-perfectly plastic discretized structure subjected to given proportional loads, undergoes displacements, some of which are measured. On the basis of this experimental data the yield limits and the hardening coefficients are sought, whereas the elastic properties are known. A number of possible ways of tackling this inverse problem are outlined and discussed. The present paper contains results on the sensitivity analysis for elastoplastic problems in the case of discrete structures modeled by finite elements. This formulation covers situations where inaccuracies of practical significance with known statistical properties affect both the measurements and the modeling of the real system.
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