I-IUTAM ibe yilungu kusukela ngo-1947.
I-International Union of Theoretical and Applied Mechanics (IUTAM) yasungulwa ngo-1946 ngenjongo yokudala ukuxhumana phakathi kwabantu nezinhlangano zikazwelonke noma zamazwe ngamazwe ezihlanganyela emsebenzini wesayensi (wethiyori noma wokuhlola) kumakhenikha noma kumasayensi ahlobene. Lokhu ikwenza ikakhulukazi ngokuhlela imihlangano yamazwe ngamazwe yokubhekana nezinkinga zesayensi. I-International Congress, okuhlanganisa ne-mini-symposia kanye namaseshini anqunyelwe, iba njalo ngemva kweminyaka emine ngokubamba iqhaza okungavinjelwe, futhi i-Symposia ekhethekile ephakathi kwemihlanu neshumi enabahlanganyeli abamenyiwe iba minyaka yonke. Lezi Symposia ze-IUTAM kwesinye isikhathi zibanjwa ngokubambisana nezinye izinyunyana emndenini we-ICSU noma nezinhlangano ezixhumene ne-IUTAM. Njengamanje amalungu angama-51 abambelele ku-IUTAM.