1996
DOI: 10.1007/bf02369265
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Mechanisms of spalling of metals in the fast space-heating regime in submicrosecond and submillimicrosecond ranges of durability

Abstract: It is known [1, 2] that fast heating of materials by pulsed flows of penetrating radiation gives rise to compressive stresses whose amplitude in the solid-phase region is proportional to the concentration of the absorbed energy.The time lag of the absorbing medium causes a motion in the form of compression waves (or shock waves) and expansion waves. The interaction of two counter waves of the latter type gives rise to tensile stresses in the material with duration rt "-" A/c (A is the thickness of the heated … Show more

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Cited by 4 publications
(6 citation statements)
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“…To study the dynamic (spall) fracture of materials on the submicrosecond scale of loading, along with the highspeed impact of plates [1], shock waves are currently used that are generated under the action of high-current ion [2][3][4] and electron beams [5][6][7] of power density 10 10 -10 11 W/cm 2 . The generation of a shock wave is associated with fast heating and intense evaporation of the surface layer of the target under the action of the beam.…”
Section: Introductionmentioning
confidence: 99%
“…To study the dynamic (spall) fracture of materials on the submicrosecond scale of loading, along with the highspeed impact of plates [1], shock waves are currently used that are generated under the action of high-current ion [2][3][4] and electron beams [5][6][7] of power density 10 10 -10 11 W/cm 2 . The generation of a shock wave is associated with fast heating and intense evaporation of the surface layer of the target under the action of the beam.…”
Section: Introductionmentioning
confidence: 99%
“…The results obtained under X-ray irradiation for low-carbon steels, copper, titanium, tungsten, molybdenum, cadmium, lead and zinc [5], and the results obtained under electronic irradiation for copper, titanium, cadmium, lead and zinc [8], and for aluminum, 6061aluminum alloy, copper and titanium [11,12] were used. In whole the consistent picture of influence of loading conditions, first of all loading time and temperature, on the fracture conditions under fast heating by penetrating radiation was noted for all examined materials.…”
Section: Discussionmentioning
confidence: 99%
“…Mention may be made of some of the works of this group in which rather numerous results were published for a number of metals [6][7][8]. For the first time such results were published for tin, lead and cadmium [6].…”
Section: Introductionmentioning
confidence: 99%
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