Schueler, Dominik and Toso-Pentecôte, Nathalie and Voggenreiter, Heinz (2011) Modeling of High Velocity Impact on Preloaded Composite Panels. 3rd EUCOMAS Thematic Conference on the Mechanical Response of Composites, 21.-23. Sept. 2011, Hannover, Germany.
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The paper describes a modeling methodology using finite element analysis (FEA) to simulate the influence of preloads on the impact damage resistance of composite panels. A continuum damage mechanics material model is coded within the framework of the software package Abaqus FEA to model in-ply damage development and failure. Strength reduction due to delamination damage is captured by modeling the laminate as a stack of multi-layered shell elements connected by cohesive element layers that allow separation into sublaminates. The impact process on pre-stressed panels is modeled utilizing coupled implicit/explicit solving techniques. The modeling methodology is applied to simulate the impact of a blunt impactor on pre-stressed and unstressed panels. Comparison of simulation results against preliminary results from impact tests on an unloaded and a preloaded panel show that the model can depict the trends of the material behavior observed in the experimental tests.
|Document Type:||Conference or Workshop Item (Speech, Paper)|
|Title:||Modeling of High Velocity Impact on Preloaded Composite Panels|
|In ISI Web of Science:||No|
|Keywords:||high velocity impact, preload, composite material, delamination, finite element modeling|
|Event Title:||3rd EUCOMAS Thematic Conference on the Mechanical Response of Composites|
|Event Location:||Hannover, Germany|
|Event Type:||international Conference|
|Event Dates:||21.-23. Sept. 2011|
|Organizer:||Leibniz Universität Hannover|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Structures & Materials|
|Institutes and Institutions:||Institute of Structures and Design > Structural Integrity|
|Deposited By:||Dominik Schüler|
|Deposited On:||06 Dec 2011 22:59|
|Last Modified:||09 Feb 2012 17:13|
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