Fig. 8

1D truss: first three PGD modes of the refined PGD solution at the first design point approximation \(\varvec{\mu }_{h_0}\) with \(\xi =10\)
1D truss: first three PGD modes of the refined PGD solution at the first design point approximation \(\varvec{\mu }_{h_0}\) with \(\xi =10\)