Wright-Patterson Air Force Base

About: Wright-Patterson Air Force Base is a other organization based out in Wright-Patterson AFB, Ohio, United States. It is known for research contribution in the topics: Laser & Mach number. The organization has 5817 authors who have published 9157 publications receiving 292559 citations. The organization is also known as: Wright-Patterson AFB & FFO.

Elevated temperature fatigue crack growth in alloy 718—part ii: effects of environmental and material variables

Abstract: Observations concerning the effects of the environment and material variables on the crack growth process in alloy 718 are reviewed and analyzed on the basis of deformation characteristics in the crack tip region. The review of the role of material variables has focused on the effects of chemical composition and microstructure parameters including precipitate size and morphology as well as grain size and morphology. These analyses have suggested that the governing mechanism at the crack tip is the degree of homogeneity of plastic deformation and associated slip density. For conditions promoting homogeneous plastic deformation, with a high degree of slip density, the environmental damage contribution is shown to be limited, thus permitting the dominance of cyclic damage effects which are characterized by a transgranular crack growth mode and a lower crack growth rate. Under conditions leading to inhomogeneous plastic deformation and lower slip density the crack tip damage is described in terms of grain boundary oxidation and related intergranular fracture mode. Considering that the crack growth damage mechanism in alloy 718 ranges from fully cycle dependent to fully environment dependent, conflicting experimental observations under different operating conditions are examined and a sensitizing approach is suggested to increase the alloy resistance to environmental effects.

Examining the influence of cross‐cultural training on cultural intelligence and specific self‐efficacy

Abstract: Purpose – The purpose of this paper is to examine the relationship between cultural intelligence (CQ) and specific self‐efficacy (SSE), and the effect of training on CQ and SSE.Design/methodology/approach – Pre and post‐test surveys were administered to 110 US government contracting trainees, in four separate training settings, to measure the effects of training on mean CQ and SSE scores. Two administrations included pre and post‐test surveys. One was designed as a post‐test only, while the fourth was taken from 25 contracting officers in a recurring training setting. Statistical analyses were performed through the use of t‐tests to measure the significance of the change in means across training classes.Findings – It was found that training using a lecture format significantly improved mean levels of CQ on the cognitive and behavioral dimensions, while less significantly improving motivational CQ. SSE scores from pre‐ to post‐training were also only marginally improved. An additional finding showed signif...