Abstract: The stress and strain singularities of power hardening material for Mode I fracrure are analysed according to the fundamental equations of elastic-plastic mechanics. It is found that the singularities of all stress and strain components do not change in the thick direction, and neither the six stress components nor the six strain components have the same singularity.

Key words: dry-coal shed, cylindrical reticulated shell, wind tunnel test, fluctuating pressure, interference effect, block pressure coefficient