Abstract
Structural failure under dynamic loads may occur at load levels that are less than the corresponding static load. Presence of local geometric imperfections may induce an early failure for both static and dynamic loadings. The phenomenon of 'dynamic weakening' is studied for a general class of shell structures under a general class of time dependent loadings. A doubly curved quadrilateral Love-Kirchhoff shell finite element is used. Geometric deviations of the shell middle surface are included within the element formulation by suitably modifying the strain-displacement relations. This is accomplished by retaining additional terms that are quadratic in spatial derivatives of imperfections and displacement components.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 569-575 |
| Number of pages | 7 |
| Journal | Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference |
| Issue number | pt 2 |
| State | Published - 1986 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Architecture
- General Materials Science
- Aerospace Engineering
- Mechanics of Materials
- Mechanical Engineering