Method and apparatus for laser shock peening ballistic armor
AssigneeLSP Technologies, Inc.
InventorsJeff L. Dulaney, David F. Lahrman, Daniel Ryan Georgiadis, Richard Daniel Hepburn
Life of this patent
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Abstract
Ballistic failure resistance is imparted to metallic ballistic armor plate by identifying a compressive residual stress profile for mitigating a predetermined ballistic failure mode in a metallic ballistic armor plate component, and imparting the identified compressive residual stress profile to the component by laser peening the component in a treatment mode predetermined with reference to the identified compressive residual stress profile.
Claims60
A method of imparting ballistic failure resistance to metallic ballistic armor plate, comprising:
- identifying a compressive residual stress profile for mitigating a predetermined ballistic failure mode in a metallic ballistic armor plate component;
- and
- imparting the identified compressive residual stress profile to the metallic ballistic armor plate component by laser peening the metallic ballistic armor plate component in a treatment mode predetermined with reference to the identified compressive residual stress profile.
A method of shaping metallic ballistic armor plate, comprising:
- identifying a compressive residual stress profile for providing a metallic ballistic armor plate component with a surface contour that is predetermined for deflecting a projectile;
- and
- inducing plastic deformation in the metallic ballistic armor plate component by laser peening the metallic ballistic armor plate component in a treatment mode predetermined with reference to the identified compressive residual stress profile.
A system for imparting ballistic failure resistance to metallic ballistic armor plate, comprising:
- an apparatus configured to treat a metallic ballistic armor plate component by applying laser peening that imparts a compressive residual stress profile predetermined to provide enhanced resistance to a ballistic failure mode.
A system for providing metallic ballistic armor plate with a surface contour for enhanced projectile deflection, comprising:
- an apparatus configured to treat a metallic ballistic armor plate component by applying laser peening that induces plastic deformation to impart a compressive residual stress profile that is predetermined with reference to the surface contour for enhanced projectile deflection.
An apparatus comprising:
- a metallic ballistic armor plate component having a compressive residual stress profile imparted by laser peening in a treatment mode predetermined with reference to a ballistic failure mode.
An apparatus comprising:
- a metallic ballistic armor plate component having a compressive residual stress profile imparted by laser peening in a treatment mode predetermined with reference to a projectile defection characteristic.
An apparatus for use in laser shock peening, the apparatus comprising:
- a diode-pumped solid-state laser (DPSSL) oscillator configured to output a pulsed laser beam having a first energy and a first temporal profile;
- a modulator configured to receive the pulsed laser beam from the DPSSL oscillator, to modify the pulsed laser beam from the first energy to a second energy, to modify the first temporal profile to a second temporal profile, and to output a beam having the second energy and the second temporal profile;
- and
- an amplifier having multiple stages comprising:
- a first stage configured to receive the beam having the second energy and the second temporal profile, to amplify the beam from the second energy to a third energy and to modify the beam from the second temporal profile to a third temporal profile, and to output a beam having the third energy and the third temporal profile;
- and
- a second stage configured to receive the beam having the third energy and the third temporal profile, to amplify the beam from the third energy to a fourth energy, to modify the beam from the third temporal profile to a fourth temporal profile, and to output a beam having the fourth energy and the fourth temporal profile.
An apparatus for use in laser shock peening, the apparatus comprising:
- a diode-pumped solid-state laser oscillator having an optical cavity and configured to produce and to output a pulsed laser beam;
- and
- an injection seeder configured to output a seed laser into the optical cavity to produce and output a pulsed laser beam of a single longitudinal mode.
A method for laser shock peening a target part, the method comprising:
- outputting a pulsed laser beam having a first energy, a first beam diameter, and a first temporal profile;
- modifying the beam having the first energy and the first temporal profile to a second energy and a second temporal profile;
- amplifying the beam having the second energy to a third energy, modifying the beam to a second beam diameter greater than the first beam diameter, and modifying the beam from the second temporal profile to a third temporal profile;
- and
- outputting the beam having the third energy, the second beam diameter, and the third temporal profile to the target part for laser shock peening the target part.
Dependencies are inferred from the claim text.