Repozytorium publikacji - Politechnika Gdańska

The paper is concerned with failure analysis of composite shells performed with the usage of the nonlinear 6‐parameter shell theory with drilling rotation degree of freedom. This special theory embodies naturally unlim-ited translations and rotations and is suitable for analysis of irregular shells for instance with various, partic-ularly orthogonal, intersections. The presence of the drilling rotation is inherently accompanied withasymmetry of in‐plane shear stresses and strains which must be taken into account in the composite failure cri-teria. In the paper in general two failure measures are applied: Hashin criterion and Tsai‐Wu criterion whichare appropriately modified to accommodate the stress asymmetry. It is shown, that depending on the used fail-ure criterion, it is possible to obtain slightly different damage zones and values of thefirst ply failure and ulti-mate load. These values are compared with those obtained experimentally.

Autorzy

• prof. dr hab. inż. Jacek Chróścielewski link otwiera się w nowej karcie ,
• dr hab. inż. Agnieszka Sabik link otwiera się w nowej karcie ,
• dr inż. Bartosz Sobczyk link otwiera się w nowej karcie ,
• prof. dr hab. inż. Wojciech Witkowski link otwiera się w nowej karcie