Target responses to the impact of high-velocity, non-abrasive water jets

Conference · Thu Apr 01 00:00:00 EST 1993

OSTI ID:6302169

Kang, S W; Reitter, T; Carlson, G ^[1]; Crutchmer, J; Garrett, D; Kramer, P; Do, B ^[2]

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1. Lawrence Livermore National Lab., CA (United States)
2. Mason and Hanger-Silas Mason Co., Inc., Amarillo, TX (United States)

Theoretical and experimental investigations have been performed on the effects of a non-abrasive water jet impinging on a solid surface. The theoretical analysis treats the time-dependent, twodimensional case of an axisymmetric jet impacting on a rigid or non-rigid surface at various velocities, up to 1500 m/s. The numerical results obtained include time-dependent pressure distributions and jet geometry near the surface. The maximum calculated pressures agree well with the water-hammer'' values when modified for high-velocity jets. Impact and machining experiments were conducted with various materials with water jet reservoir pressures up to 276 MPa (40,000 psi). Test results show that maximum mass removal rate takes place when the standoff distance is several hundred nozzle diameters from the nozzle, suggesting that at this long distance the jet has disintegrated into a series of ligaments and drops impinging on the surface. Analytical and experimental efforts are continuing on determining the dominant mechanisms for the target response to high-velocity jets.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6302169
• Report Number(s): UCRL-JC-113424; CONF-9308109-1; ON: DE93014409
• Resource Relation: Conference: 7. American water jet technology conference, Seattle, WA (United States), 28-31 Aug 1993
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
ALUMINIUM
CUTTING
JETS
WATER
IMPACT TESTS
NOZZLES
REMOVAL
TARGETS
WATER HAMMER
ELEMENTS
HYDROGEN COMPOUNDS
MACHINING
MATERIALS TESTING
MECHANICAL TESTS
METALS
OXYGEN COMPOUNDS
TESTING
420500* - Engineering- Materials Testing
360101 - Metals & Alloys- Preparation & Fabrication