About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
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Presentation Title |
L-67: KRaStk – A Multi-scale Toolkit to Compute Fibrous Material Properties |
Author(s) |
Adnan Taqi, Mujan Seif, Matthew Beck |
On-Site Speaker (Planned) |
Adnan Taqi |
Abstract Scope |
Fiber based ablative materials are used in thermal protection systems (TPS) for atmospheric entry of spacecrafts. Connecting macro-scale bulk properties to underlying micro-structural features in these materials is complicated by the intrinsic complexity and randomness of their porous structure. To address this issue—linking complex and random micro-structure to bulk effective properties—we have developed the Kentucky Random Structures Toolkit (KRaSTk), a high-throughput approach to generate and compute properties of model representative volume elements (mRVEs). mRVEs are generated from a physics-based geometric seed description that captures the structure and complexity of fibrous materials. FEM calculations of the properties of many mRVEs allow determination of bulk effective properties, probability distributions of local properties, and structure-property relationships relating specific local structural features to bulk effective properties. We describe and demonstrate KRaSTk capabilities by exploring the structure-property relationships governing fiber based TPS materials, particularly the role of fiber-fiber bonding, fiber bending and sagging. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, Characterization |