About this Abstract |
Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
Presentation Title |
A micro-Mechanical Analysis of Tow Undulation Effects on Compressive Failure in Woven Composite Laminates |
Author(s) |
Kedar Kirane, Wanru Miao |
On-Site Speaker (Planned) |
Kedar Kirane |
Abstract Scope |
This work presents an investigation into the micro-mechanical effects of tow undulations on the compressive failure of woven composite laminates. The analyses are carried out by employing a new rotating microplane triad model or MTM. The model incorporates meso-scale elastic and damage behavior in the matrix and fibers and can predict the lamina level mechanical behavior via a multi-scale homogenization scheme. The model formulation can also account for the accumulating shear deformation and changing undulation angles during compressive loading. Double lamina analyses using the MTM are presented which clearly demonstrate an increased tendency of delamination with opposing undulation curvatures in adjacent layers. Insights into the effect of tow undulations on the extensional and shear deformation modes of the inter-yarn matrix are provided. These effects are shown to significantly affect the compressive load carrying capability of woven composite laminates. Despite being homogenized at lamina level, the MTM is able to capture these micro-mechanical effects, unlike other models that embody homogenized woven lamina properties. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |