TY - JOUR
T1 - In-situ tensile testing of propellants in SEM
T2 - Influence of temperature
AU - Di Benedetto, Giuseppe L.
AU - van Ramshorst, Marthinus C.J.
AU - Duvalois, Willem
AU - Hooijmeijer, Peter A.
AU - van der Heijden, Antoine E.D.M.
PY - 2017
Y1 - 2017
N2 - A tensile module system placed within a Scanning Electron Microscope (SEM) was utilized to conduct in-situ tensile testing of propellant samples. The tensile module system allows for real-time in-situ SEM analysis of the samples to determine the failure mechanism of the propellant material under tensile force. The focus of this study was to vary the experimental parameters of the tensile module system and analyze how they affect the failure mechanism of the samples. The experimental parameters varied included strain rate and sample temperature (-54, +25 and +40°C). Stress-strain diagrams were recorded during the in-situ tensile tests, and these results were coupled with the in-situ images and videos of the samples captured with SEM analysis. The experiments conducted at -54°C showed a different failure behavior of the propellant sample due to its rigidity at this low temperature, while experiments conducted at +25 and +40°C displayed a similar failure mechanism. For future testing using this tensile tester, special attention should be given to improved temperature control of the specimen, especially at low temperatures.
AB - A tensile module system placed within a Scanning Electron Microscope (SEM) was utilized to conduct in-situ tensile testing of propellant samples. The tensile module system allows for real-time in-situ SEM analysis of the samples to determine the failure mechanism of the propellant material under tensile force. The focus of this study was to vary the experimental parameters of the tensile module system and analyze how they affect the failure mechanism of the samples. The experimental parameters varied included strain rate and sample temperature (-54, +25 and +40°C). Stress-strain diagrams were recorded during the in-situ tensile tests, and these results were coupled with the in-situ images and videos of the samples captured with SEM analysis. The experiments conducted at -54°C showed a different failure behavior of the propellant sample due to its rigidity at this low temperature, while experiments conducted at +25 and +40°C displayed a similar failure mechanism. For future testing using this tensile tester, special attention should be given to improved temperature control of the specimen, especially at low temperatures.
KW - In-situ SEM
KW - In-situ tensile testing
KW - Micromechanical deformation
KW - Propellant
KW - Temperature effect
UR - http://www.scopus.com/inward/record.url?scp=85031099198&partnerID=8YFLogxK
U2 - 10.1002/prep.201700178
DO - 10.1002/prep.201700178
M3 - Article
AN - SCOPUS:85031099198
SN - 0721-3115
VL - 42
SP - 1396
EP - 1400
JO - Propellants, Explosives, Pyrotechnics
JF - Propellants, Explosives, Pyrotechnics
ER -