ABSTRACT
The author has had the fortune to collaborate through many years with J. Michael Rotter on the study and specification of loads in silos. The collaboration began in 1983. J. Michael Rotter was at that time working at University of Sydney and had developed an interest in shell buckling. He had realized how big a challenge it was to understand buckling in silos (Rotter 1983, Jumikis et al. 1983 and Ansourian et al. 1983). The Author had from a general interest in experimental mechanics developed an interest in accurate determination of pressures in silos (Askegaard et al. 1971). In 1983 he could present results which indicated severe non-symmetric loads in notionally symmetric silos (Nielsen 1983).
