تقرير
Modeling and simulation credibility assessments of whole-body finite element computational models for use in NASA extravehicular activity applications
| العنوان: | Modeling and simulation credibility assessments of whole-body finite element computational models for use in NASA extravehicular activity applications |
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| المؤلفون: | Richard A. Perkins, Christopher A. Gallo, Athena E. Ivanoff, Keegan M. Yates, Courtney M. Schkurko, Jeffrey T. Somers, Nathaniel J. Newby, Jerry G. Myers, Jr, Raj K. Prabhu |
| المصدر: | Computer Methods in Biomechanics and Biomedical Engineering. |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Engineering (General) |
| الوصف: | Computational finite element (FE) models are used in suited astronaut injury risk assessments; however, these models’ verification, validation, and credibility (VV&C) procedures for simulating injuries in altered gravity environments are limited. Our study conducts VV&C assessments of THUMS and Elemance whole-body FE models for predicting suited astronaut injury biomechanics using eight credibility factors, as per NASA-STD-7009A. Credibility factor ordinal scores are assigned by reviewing existing documentation describing VV&C practices, and credibility sufficiency thresholds are assigned based on input from subject matter experts. Our results show the FE models are credible for suited astronaut injury investigation in specific ranges of kinematic and kinetic conditions correlating to highway and contact sports events. Nevertheless, these models are deficient when applied outside these ranges. Several credibility elevation strategies are prescribed to improve models’ credibility for the NASA-centric application domain. |
| نوع الوثيقة: | Report |
| اللغة: | English |
| تدمد: | 1476-8259 1025-5842 |
| DOI: | 10.1080/10255842.2023.2293653 |
| URL الوصول: | https://ntrs.nasa.gov/citations/20240000233 |
| ملاحظات: | 305041.01.02.10 |
| رقم الأكسشن: | edsnas.20240000233 |
| قاعدة البيانات: | NASA Technical Reports |
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Full Text Finder | تدمد: | 14768259 10255842 |
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| DOI: | 10.1080/10255842.2023.2293653 |