Laser Shock Experiments to Investigate Fragmentation at Extreme Strain Rates
| Autor: | Caroline Roland, Thibaut de Resseguier, André Dragon, E. Lescoute, Benjamin Jodar, Loëc Signor, Didier Loison |
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| Přispěvatelé: | ENDOmmagement et durabilité ENDO (ENDO), Département Physique et Mécanique des Matériaux (Département Physique et Mécanique des Matériaux), Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS), Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
[PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph] Spall fracture Time‐resolved velocimetry 02 engineering and technology 01 natural sciences law.invention [SPI.AUTO]Engineering Sciences [physics]/Automatic Fragmentation (mass spectrometry) Dynamic fragmentation [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] law 0103 physical sciences Strain rates [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph] 010302 applied physics [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] [PHYS.MECA.VIBR]Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph] [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment [SPI.NRJ]Engineering Sciences [physics]/Electric power [CHIM.MATE]Chemical Sciences/Material chemistry [PHYS.MECA.MSMECA]Physics [physics]/Mechanics [physics]/Materials and structures in mechanics [physics.class-ph] 021001 nanoscience & nanotechnology Laser [PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] Radiography [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism [CHIM.POLY]Chemical Sciences/Polymers Biophysics [PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph] Fast shadowgraphy 0210 nano-technology Post‐recovery analyses Laser‐driven shocks |
| Zdroj: | Dynamic Damage and Fragmentation Dynamic Damage and Fragmentation, John Wiley & Sons, Inc., pp.213-235, 2019, ⟨10.1002/9781119579311.ch6⟩ |
| DOI: | 10.1002/9781119579311.ch6⟩ |
| Popis: | International audience; Laser‐driven shocks can be used to investigate the processes over ranges of very high strain rates, high loading pressures, small spatial scales and very short duration of pressure application. This chapter provides an overview of some experimental work on spall fracture, microspall and microjetting, involving complementary techniques including fast shadowgraphy, time‐resolved velocimetry, ultrafast in situ radiography and post‐recovery analyses of both samples and ejecta. Dynamic fragmentation is a safety issue for a variety of applications, such as pyrotechnics/high‐speed machining, in which materials and structures are subjected to high‐rate thermo‐mechanical loading. Laser‐driven shock experiments with appropriate instrumentation can be used to study dynamic damage and fragmentation at very high loading rates. The chapter presents examples covering a variety of materials including copper, tin, iron, single‐crystal magnesium and a bulk metallic glass, focus more specifically on the ballistic properties of shock‐generated fragments resulting from spall fracture, microspall after shock‐induced melting and microjetting from surface defects. |
| Databáze: | OpenAIRE |
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