Mutual influence of openings on strength of shell-type structures under plastic deformation

作者：Hudramovich V S^*; Hart E L; Klimenko D V; Ryabokon' S A

来源：Strength of Materials, 2013, 45(1): 1-9.

DOI：10.1007/s11223-013-9426-5

• openings
• shell-type structures
• plastic deformation
• load-carrying ability
• mutual influence
• finite-element method
• projection-iterative schemes

Analytical models have been constructed for the stress-strain determination by using projectioniterative schemes for implementation of the finite-element method for shell-type structures with rectangular openings under plastic deformation. The variation of opening parameters, quantity, and spacing allows one to study the formation and transformation of plastic strain zones in the course of loading for various deformation curves. Merging of the zones leads to a decrease in stiffness; this fact is used in predicting the load-carrying ability of shell-type structures with openings.

• 出版日期2013-1