Source : Free On-Line Dictionary of Computing

STRUDL
     
        STRUctured Design Language.
     
        Dynamic and {finite-element analysis}, steel and concrete
        structures.  Subsystem of {ICES}.  ["ICES STRUDL-II
        Engineering User's Manual", R68-91, CE Dept MIT (Nov 1968)
        Sammet 1969, p.613].