Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Stephen W. Banovic"'
Publikováno v:
Metallurgical and Materials Transactions A. 43:854-869
Constitutive equations for the multiaxial stress-strain behavior of aluminum alloy 5754 sheets were developed, based on crystal plasticity. A Taylor-based polycrystal plasticity model, a tangent formulation of the self-consistent viscoplastic model (
Publikováno v:
Metallurgical and Materials Transactions A. 40:1611-1622
Three-dimensional, matrix-based statistical analysis methods were developed and integrated with high-resolution topographical imaging, to assess how microstructural changes influence the evolution of plastic deformation and strain localization in a c
Publikováno v:
International Journal of Plasticity. 24:2084-2101
Experimental measurement of the plastic biaxial mechanical response for an aluminum alloy (AA5754-O) sheet metal is presented. Traditional methods of multiaxial sheet metal testing require the use of finite element analysis (FEA) or other assumptions
Publikováno v:
International Journal of Impact Engineering. 35:511-520
Frangible bullets are designed to disintegrate on impact against rigid surfaces to avoid ricochet hazards in recreational shooting ranges or law enforcement training facilities. Their impact behavior against protective soft body armor is therefore qu
Publikováno v:
Metallurgical and Materials Transactions A. 39:2246-2258
Crystallographic texture evolution was quantified as a function of biaxial strain level and strain path for AA5754-O sheet metal in an effort to provide a physical description of grain rotation resulting from in-plane stretching. Samples were increme
Autor:
Joseph D. McColskey, William E. Luecke, Thomas A. Siewert, Timothy J. Foecke, Christopher N. McCowan, Stephen W. Banovic, Frank W. Gayle
Publikováno v:
JOM. 59:22-30
On August 21, 2002, on the direction of the U.S. Congress, the National Institute of Standards and Technology (NIST) initiated an investigation into the collapse of the World Trade Center (WTC) towers. In support of the overall investigation goals, t
Publikováno v:
Metallurgical and Materials Transactions A. 38:306-313
A method has been developed that allows measurement of stress-strain curves for sheet metal being deformed in multiaxial tension. The strain state is imposed using a modification of the Marciniak in-plane biaxial stretching test. Resulting stresses a
Autor:
Richard J. Fields, Frank W. Gayle, William E. Luecke, Thomas A. Siewert, Stephen W. Banovic, Tim Foecke, Chris N. McCowan, J. David McColskey
Publikováno v:
Journal of Failure Analysis and Prevention. 6:5-8
Autor:
Stephen W. Banovic, Timothy J. Foecke
Publikováno v:
Journal of Failure Analysis and Prevention. 6:103-120
Recovered structural steel from the World Trade Center was examined as part of the National Institute of Standards and Technology investigation to provide data on potential temperature excursions seen by the steel for input and validation of the fire
Publikováno v:
Journal of Failure Analysis and Prevention. 6:86-102
This paper describes damage characteristics and failure modes of the recovered structural steel components from the World Trade Center (WTC) towers WTC 1 and WTC 2. Knowledge of damage to the steel elements played an important role in the investigati