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Computational and experimental investigations on toughening mechanisms for thin-ply CF thermoplastic composites
The damage tolerance domain in design with composite material is commonly avoided due to the complexity of defining the sequence of damage events. Yet, the extent of damage tolerance of a partially damaged structure is attested by the assessment of the resistance to loads after such harsh events as an impact.
Keywords: Thin ply; PEEK; Fracture in composites; Interface modeling; Material damage modeling
At CMASLab, we have developed an in-house processing technique to produce novel thin-ply thermoplastic composites, with superior mechanical properties compared to their state-of-the-art epoxy counterparts. In this project, the focus is devoted to the analysis of these composites, and the scope is to investigate damage toughening mechanisms under certain loading conditions, using numerical and experimental tools. The investigations will explore the design space that semi-crystalline thermoplastic materials offer in terms of ductility and interface strength.
At CMASLab, we have developed an in-house processing technique to produce novel thin-ply thermoplastic composites, with superior mechanical properties compared to their state-of-the-art epoxy counterparts. In this project, the focus is devoted to the analysis of these composites, and the scope is to investigate damage toughening mechanisms under certain loading conditions, using numerical and experimental tools. The investigations will explore the design space that semi-crystalline thermoplastic materials offer in terms of ductility and interface strength.
The objectives of this project are the following:
1. Develop FE-based micro, meso, and macro-scale models of the composite under investigation.
2. Perform parametric sensitivity analysis focusing on damage response.
3. Investigate the damage cascade on a laminate level with experimental and numerical tools.
The objectives of this project are the following: 1. Develop FE-based micro, meso, and macro-scale models of the composite under investigation. 2. Perform parametric sensitivity analysis focusing on damage response. 3. Investigate the damage cascade on a laminate level with experimental and numerical tools.