ABSTRACT
The mechanical phenomena during cure under conditions of omnidirectional constraints of heterophase polymer system, the matrix being in the rubbery state, are considered. It is shown that in heterophase systems, as well as in earlier investigated 210homogeneous systems, development of shrinkage defects during isothermal cure takes place. General analysis of the shrinkage cracking is carried out. Most probable mechanisms of the cracking process are revealed. Stress state of the heterophase system on the initial stage of fracture is investigated. Possible directions for further research are discussed.
