Abstract: The sheet perforated with circular holes arranged in a square penetration pattern anp subjected to in-plane biaxial stress is investigated. Discontinuous fields of stress are used to obtain the ...

Abstract: New discontinuous fields of stress are derived for materials perforated in a triangular array of circular holes. These stress fields are applicable for loads of arbitrary bi-axiality and orientation ...

Abstract: A rigorous method of bounding both the total accumulated strain and the strain ranges due to cyclic operation in the creep regime is presented. These limits can be obtained from the results ...

Abstract: The sheet perforated with a uniform triangular pattern of round holes and subjected to in-plane stress of arbitrary biaxiality is investigated. Discontinuous fields of stress are employed to ...