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Laser-Shock

Laser shock experiments to investigate and to model various aspects of the response of metals to shock loading

Laser shock experiments to investigate and to model various aspects of the response of metals to shock loading

... pressure laser shocks have been applied onto tin samples to quantify the progressive loss of tensile strength associated with incipient melting on release [11], to investigate the debris ejec- tion from relatively ...

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Variation in the Mechanical properties of Extruded Al-2099 after laser shock peening

Variation in the Mechanical properties of Extruded Al-2099 after laser shock peening

... of laser shock peening on Al alloy 2634 in terms of hardening, state of heat treatment and crystallographic ...which laser shock peening parameters such as power density, spot size, peened ...

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Effects of Laser Shock Peening on Mechanical Properties and Surface Morphology of AA2024 Alloy

Effects of Laser Shock Peening on Mechanical Properties and Surface Morphology of AA2024 Alloy

... to laser surface modification processes and one of the applications growing rapidly is laser shock peening ...power laser beam density (GW/cm 2 ) to generate a plasma at high pressure to ...

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Research on Formation Mechanism of Dynamic Response and Residual Stress of Sheet Metal Induced by Laser Shock Wave

Research on Formation Mechanism of Dynamic Response and Residual Stress of Sheet Metal Induced by Laser Shock Wave

... Laser shock processing (LSP) is widely used for surface modification of metallic materials owing to its characteristics like high strain rate and high ...of laser shock processing are closely ...

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Effects of Laser Shock Peening on the Surface Integrity of 18 % Ni Maraging Steel

Effects of Laser Shock Peening on the Surface Integrity of 18 % Ni Maraging Steel

... of laser shock peening (LSP) on surface integrity characteristics of X2NiCoMo18-9-5 maraging ...of laser treatment on surface integrity were analyzed with roughness, residual stress, and ...

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Evaluation of Adhesive Strength of Thermal Sprayed Hydroxyapatite Coatings Using the LAser Shock Adhesion Test (LASAT)

Evaluation of Adhesive Strength of Thermal Sprayed Hydroxyapatite Coatings Using the LAser Shock Adhesion Test (LASAT)

... The adhesive strength between a coating and a substrate is an important factor that characterizes the quality of thermally sprayed Hydroxyapatite (HA) coatings such as those for biomedical applications. In this study ...

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Acoustic Emission Monitoring of Laser Shock Peening by Detection of Underwater Acoustic Wave

Acoustic Emission Monitoring of Laser Shock Peening by Detection of Underwater Acoustic Wave

... Laser shock peening (LSP) process is one of surface treat- ments to induce residual compressive stress into material sur- face to improve fatigue property of ...material. Laser is irradiat- ed on ...

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Impact-Sliding Tribology Behavior of TC17 Alloy Treated by Laser Shock Peening

Impact-Sliding Tribology Behavior of TC17 Alloy Treated by Laser Shock Peening

... investigation laser peening on TC17 titanium alloy microstructure and properties. Laser shock peening (LSP) is a surface treatment method that can improve fatigue, wear, and corrosion properties of ...

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Surface Modification of Aluminium Alloys with Laser Shock Processing

Surface Modification of Aluminium Alloys with Laser Shock Processing

... [9] Sano, Y., Obata, M., Kubo, T., Mukai, N., Yoda, M., Masaki, K., Ochi, Y. (2006). Retardation of crack initiation and growth in austenitic stainless steels by laser peening without protective coating. Materials ...

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Residual Stress, Phase, Microstructure and Mechanical Property Enhancement of Ultrafine Bainitic Steel through Laser Shock Processing

Residual Stress, Phase, Microstructure and Mechanical Property Enhancement of Ultrafine Bainitic Steel through Laser Shock Processing

... Further, the resulting peak shift trend in Fig.3 depicts that the current process is inducing the misorientation or martensite phase transformation trend in the crystalline structure. Likewise, the elevated intensity of ...

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Effect of Confinement Layer on Laser Ablation and Cavitation Bubble during Laser Shock Peening

Effect of Confinement Layer on Laser Ablation and Cavitation Bubble during Laser Shock Peening

... Laser shock peening (LSP) is one of surface treatments to induce residual compressive stresses near metal surface to improve the resis- tance of materials to surface-related failures, such as fatigue and ...

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Prediction of Laser Shock Peening Effects on Welding Residual Stresses in Alloy600 Penetration Nozzle using FE Analysis

Prediction of Laser Shock Peening Effects on Welding Residual Stresses in Alloy600 Penetration Nozzle using FE Analysis

... The analytical model used in this study are shown in Figure 1. The model consisted finite elements (C3D8R) for calculating residual stresses induced by laser shock and infinite elements (CIN3D8) for ...

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High-power laser shock-induced dynamic fracture of aluminum and microscopic observation of samples

High-power laser shock-induced dynamic fracture of aluminum and microscopic observation of samples

... High-power laser induced shocks generated by “ShenGuang II” laser facility has been used to study spall fracture of polycrystalline aluminum at strain rates more than ...of shock-loaded samples, 150 ...

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Use of non pneumatic anti shock garment in hemorrhagic shock

Use of non pneumatic anti shock garment in hemorrhagic shock

... applied by either trained nurses or doctors or both depending on the situation. The criteria for use of NASG were predetermined and thus followed in the hospital. The decision regarding application and removal of NASG ...

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Probable Toxic Shock Syndrome Without Shock and Multisystem Involvement

Probable Toxic Shock Syndrome Without Shock and Multisystem Involvement

... Three menstruating adolescents using tam- pons colonized with Staphylococcus aureus developed high fever, vomiting, diarrhea, and abdominal pain fol-.. lowed by conjunctival injection an[r] ...

5

Unsteady shock front waviness in shock-buffet of transonic aircraft

Unsteady shock front waviness in shock-buffet of transonic aircraft

... in shock-buffet by Sartor and Timme [19, 20] using both URANS and Delayed Detached Eddy Simulations ...intricate shock-buffet dynamics and a qualitative comparison with ...a shock-buffet onset ...

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Transverse ionizing shock waves in a planar electromagnetic shock tube

Transverse ionizing shock waves in a planar electromagnetic shock tube

... bow shock and the stagnation point along the stagnation streamline) is of the order of the probe diameter, that the bow shock shape is as illustrated in Figure 3*10b, and that the density ratio at Q is 1 ...

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Charity shock advertising : does it pay to shock in a philanthropic context?

Charity shock advertising : does it pay to shock in a philanthropic context?

... than 30 has children (CBS, 2005). We targeted people aged 18 to 40, hoping to survey comparable numbers of both people under and over 30 years old, in order to achieve the desired distribution. A little over 50 percent ...

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Prognostic value of shock index in children with sepsis/septic shock

Prognostic value of shock index in children with sepsis/septic shock

... septic shock: 2007 update from the american college of critical care ...37(2):666–688,2009. Shock index values and trends in pediatric sepsis: predictors or therapeutic targets? A retrospective ...

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A computational study of shock speeds in high performance shock tubes pdf

A computational study of shock speeds in high performance shock tubes pdf

... The shock speed was computed by recording the po- sition of the shock wave every ten ...analytical shock speeds in ...first shock tube problem as seen in ...computed shock speed and ...

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