التفاصيل البيبلوغرافية
| العنوان: |
Modeling of Prepregs during Automated Draping Sequences. |
| المؤلفون: |
Krogh, Christian1 ck@make.aau.dk, Glud, Jens A.1 jag@make.aau.dk, Jakobsen, Johnny1 joj@make.aau.dk |
| المصدر: |
AIP Conference Proceedings. 2017, Vol. 1896 Issue 1, p1-6. 6p. 1 Diagram, 1 Chart, 4 Graphs. |
| مصطلحات موضوعية: |
*TEXTILES, *DRY goods, *TEXTILE fibers, *FIBERS, *WOVEN composites |
| مستخلص: |
The behavior of wowen prepreg fabric during automated draping sequences is investigated. A drape tool under development with an arrangement of grippers facilitates the placement of a woven prepreg fabric in a mold. It is essential that the draped configuration is free from wrinkles and other defects. The present study aims at setting up a virtual draping framework capable of modeling the draping process from the initial flat fabric to the final double curved shape and aims at assisting the development of an automated drape tool. The virtual draping framework consists of a kinematic mapping algorithm used to generate target points on the mold which are used as input to a draping sequence planner. The draping sequence planner prescribes the displacement history for each gripper in the drape tool and these displacements are then applied to each gripper in a transient model of the draping sequence. The model is based on a transient finite element analysis with the material's constitutive behavior currently being approximated as linear elastic orthotropic. In-plane tensile and bias-extension tests as well as bending tests are conducted and used as input for the model. The virtual draping framework shows a good potential for obtaining a better understanding of the drape process and guide the development of the drape tool. However, results obtained from using the framework on a simple test case indicate that the generation of draping sequences is non-trivial. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
Academic Search Index |