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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
Presentation Title Examination of Local Microscale-microsecond Temperature Rise in HMX-HTPB Energetic Material under Impact Loading
Author(s) Ayotomi Olokun, Bing Li, Chandra Prakash, Zhiwei Men, Dana Dlott, Vikas Tomar
On-Site Speaker (Planned) Bing Li
Abstract Scope Energetic material (EM) with solid oxidizer material and polymeric binder can experience abrupt temperature rise or even explosion when exposed to dynamic impact due to its complex microstructure. Such unintended detonation could result in severe accidents. It has been noticed that there are hot-spots within the EM, which are prone to initiate the chemical reaction and detonation under dynamic loads. The behavior of hot-spots during detonation initiation under impact is influenced by the EM microstructure, including oxidizer particle size, volume fraction, etc. It is important to capture the local temperature rise and relate it with material microstructure during the detonation for improvement of safety management. Infrared imaging technique was employed in this work to provide visualization of temperature change during EM detonation, and high time and special resolution were both achieved. This related the behavior of hot-spots with material microstructure and the observation agreed well with existing numerical simulation work.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

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A Novel Fracture Observation in SiC-based Ceramics Through In-situ Double Torsion Testing
A Novel X-ray Diffraction Simulation Framework for Rapid Thermo-mechanical Processes
Ab-initio Predictions of Plastic Anisotropy in BCC Metals
Acoustic Emission Measurements During In-situ Scanning Electron Microscopy Experiments to Quantifying Damage Accumulation and Crack Initiation in Microcrystals
Assessing Crack Propagation Along Brittle/Ductile Interfaces
Core Structure and Mobility of Dislocations in Alpha-Ti
Deformation Behavior of Additively Manufactured Cu-Fe Composites at Different Strain Rates
Development of TiAl Alloys for High Temperature Applications
Dislocation-grain Boundary Interaction Investigations Using In-situ DIC and EBSD
Effect of Loading Rate on Fracture Behavior of Magnesium Alloys
Examination of Local Microscale-microsecond Temperature Rise in HMX-HTPB Energetic Material under Impact Loading
Experimental and Numerical Investigation into Mechanical Degradation of Polymers and Polymer Composites
Fabrication of Microscale Specimens via Additive Manufacturing for In-situ Mechanical Testing
Fracture Across Length Scales in Tungsten: A Combined Experimental and Predictive Approach
High Throughput Creep Data Acquisition by Cantilever Bending Coupled to Digital Image Correlation
Impact of the Architecture / Texture on the Mechanical Behavior of Ni-microwires: How to Drive the Strength and Ductility
In-situ Dynamic Stress Field Detection using 2D Mechanical Raman Spectroscopy
In-situ Mechano-electrochemical Coupling of Structural Supercapacitor Electrodes
In-situ TEM Investigation of the Electroplasticity Phenomenon in Metals
In-situ TEM Investigation on Pyramidal Dislocations in Magnesium
Investigating Bulk Mechanical Properties on a Micro-scale: Micro-tensile Testing of Ultrafine Grained Ni-SiC Composite to Determine its Fracture Mechanism and Strain Rate Sensitivity
Micropillar Compression Testing with In-situ Raman Spectroscopy to Study Plastic Deformation in Vitreous Silica
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Microtensile Testing of (fcc) Copper and (hcp) Titanium at Elevated Temperatures
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Multiscale Modeling to Determine Bulk Material Property from Miniature Specimen Testing
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Synchronized Indentation and Raman Spectroscopy for Crystal Engineering
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