Project Grant NNX16AM65H
- This $359,990 project grant award from the National Science Foundation's (NSF) Engineering program (CFDA 47.041) supports research at Rutgers, The State University to establish a physics-informed machine learning (PIML) framework that can accurately predict the fatigue life and scattering behavior of metal components produced through laser powder bed fusion (LPBF) additive manufacturing (AM) processes. The key objectives are to: 1) characterize the quality and fatigue properties of...
- This Project Grant, awarded by the National Science Foundation (NSF) Engineering Directorate (CFDA 47.041), aims to develop a deeper understanding of fracture and damage tolerance in micro-architectured materials composed of brittle ceramic or ceramic-like parent materials. The $500,000 award to the Texas A&M Engineering Experiment Station (Tees), a division of the Texas A&M University System, will facilitate damage tolerance and structural integrity analysis to enable the reliable use...
- This Cooperative Agreement award is funded by the National Aeronautics and Space Administration (NASA) Office of STEM Engagement (OSTEM) Federal Grant Program (CFDA 43.008). The $100,000 award will support the development of a finite element-based user material model for thermo-mechanically coupled fatigue damage accumulation in additively manufactured short-fiber thermoplastic composites. The project aims to bridge microstructural and macroscale properties to enable rapid assessment of the...
- This $249,999 Project Grant awarded by the National Science Foundation (NSF) under the Engineering program (CFDA 47.041) aims to establish a physics-informed machine learning (PIML) framework to enable accurate and transparent predictions of fatigue life and its variation for metal additive manufacturing (AM) components. The project will fabricate baseline fatigue samples of SS316L and Ti-6Al-4V alloys produced via laser powder bed fusion (LPBF) AM and post-processing, characterize their...
- This $180,000 federal Project Grant award from the National Science Foundation's (NSF) Mathematical and Physical Sciences program (CFDA 47.049) supports collaborative research to transform the fracture resistance of ceramics. The overarching goal is to introduce heterogeneous metallic features across multiple length scales into ceramic materials to significantly improve their toughness and make them more viable for use in various structural applications. The project will leverage advances in...
- This National Science Foundation (NSF) Engineering program (CFDA 47.041) grant award of $149,999 to the University of Toledo supports research to advance the scientific understanding of fatigue behavior in a novel additively manufactured aluminum matrix nanocomposite material. The project aims to establish a comprehensive experimental and analytical framework to evaluate the extended fatigue performance (10 million to 10 billion cycles) of laser-based additively manufactured Al-Cu nanocomposites...
- This National Science Foundation (NSF) Integrative Activities (CFDA 47.083) Project Grant award to The Administrators of the Tulane Educational Fund, doing business as Tulane University, provides $224,063 to develop a tough, lightweight self-healing modular panel system that can shield lunar habitats and vehicles against micrometeoroid and orbital debris (MMOD) impacts. The project aims to measure the thermal and flow properties of a polypropylene/carbon nanotube (PP/CNT) composite material,...
- This Project Grant award from the National Science Foundation's (NSF) Engineering program (CFDA 47.041) provides $340,277 to support fundamental research on developing a new class of fracture-resistant mechanical metamaterials. The research aims to create a hierarchical framework for understanding and designing these materials to have enhanced fracture resistance, addressing a critical issue that impacts safety and economic efficiency across industries such as construction, manufacturing,...
- This $487,000 federal Project Grant awarded by the National Science Foundation's (NSF) Engineering program (CFDA 47.041) aims to transform the fracture resistance of ceramics by introducing heterogeneous metallic features across multiple length scales. The overarching goal is to develop a new class of tough, hierarchically heterogeneous ceramic composites that can be directly implemented in commercial applications such as satellite structures, medical devices, armor, and hypersonic vehicles. The...
- This Project Grant award from the National Science Foundation's (NSF) Integrative Activities program (CFDA 47.083) provides $299,431 to the University of Alabama in Huntsville (UAH) to develop characterization techniques for determining the rate and temperature-dependent properties of polymer matrix composite (PMC) materials. The goal is to enable accurate simulations of PMC behavior under dynamic loading conditions, such as vehicle crashes and aircraft impacts, to support the widespread...
BECAUSE OF THE CHALLENGES ASSOCIATED WITH THE INABILITY TO RESUPPLY FOR REPAIR FUTURE DEEP SPACE EXPLORATION MISSIONS WILL REQUIRE INNOVATIVE MATERIAL AND STRUCTURAL SOLUTIONS TO ACHIEVE LIGHTER STRONGER MORE RELIABLE AND MORE MULTIFUNCTIONAL STRUCTURES. DIGITAL LATTICE MATERIALS OFFER A UNIQUE APPROACH TO ACHIEVING THESE GOALS GENERATING FROM DISCRETE PARTS LATTICE SOLIDS THAT BEHAVE AS CONTINUUM MATERIALS. SUCH MATERIALS HAVE SHOWN EXTRAORDINARY STRENGTH AND STIFFNESS PROPERTIES AT ULTRALOW DENSITY ARE RECONFIGURABLE AND ALLOW CUSTOMIZATION OF MATERIAL PROPERTIES BASED ON CONTROL OF LATTICE SUBSTRUCTURE. DESPITE DEMONSTRATION OF THESE PROPERTIES THE FAILURE MECHANISMS FRACTURE TOUGHNESS AND FATIGUE PROPERTIES OF THESE MATERIALS ARE NOT WELL UNDERSTOOD. CHARACTERIZATION OF THESE PROPERTIES IS CRITICAL FOR SAFE AND EFFICIENT IMPLEMENTATION OF THESE MATERIALS IN CRITICAL LOAD BEARING APPLICATIONS. THIS PROJECT SEEKS TO NOT ONLY CHARACTERIZE THE FUNDAMENTAL FRACTURE AND FATIGUE SCALING LAWS ASSOCIATED WITH DIGITAL LATTICE MATERIALS OF CUBOCTAHEDRAL STRUCTURE BUT ALSO INVESTIGATE NOVEL MACROSTRUCTURAL TOUGHENING MECHANISMS. IN ADDITIONAL BECAUSE THE POTENTIAL FOR RECONFIGURABLITY IS A PRIMARY ADVANTAGE OF THESE MATERIALS IN DEEP SPACE (WHERE MATERIAL LIFECYCLE IS OF CRITICAL IMPORTANCE) THIS RESEARCH WILL ALSO INVESTIGATE APPROPRIATE CHARACTERIZATION OF MATERIAL FRACTURE AND FATIGUE PROPERTIES FOR RECONFIGURED DIGITAL LATTICE STRUCTURES. EXPERIMENTAL INVESTIGATION WILL UTILIZE STANDARD FATIGUE AND FRACTURE SPECIMENS (3 POINT BEND NOTCHED SPECIMEN) TO COMPARE THE BEHAVIOR OF DIGITAL LATTICE MATERIALS TO OTHER CELLULAR SOLIDS. THESE WILL ALSO BE COMPARED TO SIMILAR TESTS THAT INVESTIGATE THE INFLUENCE OF MACROSCOPIC TOUGHENING FEATURES DESIGNED INTO THE LATTICE ON FRACTURE AND FATIGUE PERFORMANCE. FINALLY SIMILAR TESTS WILL BE USED TO VERIFY THE ABILITY TO PREDICT DEGRADED FRACTURE AND FATIGUE PROPERTIES ASSOCIATED WITH RECONFIGURED MATERIAL THAT HAS BE PRE-CYCLED. THE RESULTS OF THIS WORK WILL BE IN DIRECT SUPPORT OF NASA TECHNOLOGICAL ROADMAP TECHNOLOGY AREA 12 BY INVESTIGATING NOVEL APPROACHES TO INCREASING THE TOUGHNESS (AND THEREFORE RELIABILITY) OF ULTRA-LIGHTWEIGHT STRUCTURES. SUCH WORK IS ALSO CRITICAL FOR DESIGNING APPROPRIATE HEALTH MONITORING STRATEGIES. FINALLY ABILITY TO PREDICT THE DEGRADED PROPERTIES OF RECONFIGURED MATERIAL IS A KEY ENABLING TECHNOLOGY MATERIAL RECYLCABILITY THAT COULD REVOLUTIONIZE MATERIAL AND STRUCTURAL LIFE CYCLES IN SPACE APPLICATIONS.
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| 4 | Funding Only Action | ($10k) | 9/24/19 | |
| Not listed | ($10k) | 9/24/19 | ||
| 3 | Other Administrative Action | $0 | 11/13/18 | |
| Not listed | $0 | 11/13/18 | ||
| 2 | Other Administrative Action | $0 | 1/26/18 |