BULLETIN 230-1977 AN EXPERIMENTAL STUDY OF ELASTO-PLASTIC RESPONSE OF BRANCH-PIPE TEE CONNECTIONS SUBJECTED TO INTERNAL PRESSURE@ EXTERNAL COUPLES AND COMBINED LOADINGS ; COLLAPSE TEST OF A THING-WALLED CYLINDRICAL PR
Experimental results of nine branch-pipe tee connections and two plain pipes are reported. The models were exposed to individual loadings: internal pressure and external couples and their combination. The loads were applied well beyond the elastic limit@ and the elasto-plastic response of the models are discussed. Experimental limit or yield-point load of each model is determined@ and the interaction curves are plotted. For the individual loadings@ the out-of-plane couple is the critical case. However@ presence of the internal pressure increases the resistance to the external couple. Normalized limit couple (out-of-plane or in-plane) decreases with the increase of diameter ratio. All models showed considerable reserve capacity beyond the experimentally determined limit loads
BULLETIN 230-1977 history
1977BULLETIN 230-1977 AN EXPERIMENTAL STUDY OF ELASTO-PLASTIC RESPONSE OF BRANCH-PIPE TEE CONNECTIONS SUBJECTED TO INTERNAL PRESSURE@ EXTERNAL COUPLES AND COMBINED LOADINGS ; COLLAPSE TEST OF A THING-WALLED CYLINDRICAL PR