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Sandia National Laboratories California Environmental Monitoring Program Annual Report

Holland, Robert C.

The annual program report provides detailed information about all aspects of the SNL/CA Environmental Monitoring Program for a given calendar year. It functions as supporting documentation to the SNL/CA Environmental Management System Program Manual. The 2006 program report describes the activities undertaken during the past year, and activities planned in future years to implement the Environmental Monitoring Program, one of six programs that supports environmental management at SNL/CA.

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TYPE SAND Report YEAR 2007
DOIOSTI

Dynamic Fracture of a Mild Steel Plate

Sandia journal manuscript; Not yet accepted for publication

Todd, Steven T.

A detonating explosive in contact or in close proximity with a material can impart an extremely strong impulsive load that nucleates the growth of cracks and voids at multiple sites simultaneously. This paper uses experimental results to show void nucleation and fractures that developed during the impulsive loading of a mild steel plate. Additionally, a numerical simulation that matches the experimental results shows the the progression, amplitude, and interaction of the stress wave as it propagates through the thickness of the plate. Through this simulation, one can see where the fractures might initiate due to large triaxial stresses. Finally, the paper discusses the possible mechanisms that initiate and generate the fracture surfaces found in the mild steel plate experiment.

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TYPE Journal Article YEAR 2007
OSTIOSTI
Results 80651–80675 of 96,771
Results 80651–80675 of 96,771