Design studies for twist-coupled wind turbine blades.

This study presents results obtained for four hybrid designs of the Northern Power Systems (NPS) 9.2-meter prototype version of the ERS-100 wind turbine rotor blade. The ERS-100 wind turbine rotor blade was designed and developed by TPI composites. The baseline design uses e-glass unidirectional fibers in combination with {+-}45-degree and random mat layers for the skin and spar cap. This project involves developing structural finite element models of the baseline design and carbon hybrid designs with and without twist-bend coupling. All designs were evaluated for a unit load condition and two extreme wind conditions. The unit load condition was used to evaluate the static deflection, twist and twist-coupling parameter. Maximum deflections and strains were determined for the extreme wind conditions. Linear and nonlinear buckling loads were determined for a tip load condition. The results indicate that carbon fibers can be used to produce twist-coupled designs with comparable deflections, strains and buckling loads to the e-glass baseline

Fabrication, testing, and analysis of anisotropic carbon/glass hybrid composites: volume 1: technical report.

Anisotropic carbon/glass hybrid composite laminates have been fabricated, tested, and analyzed. The laminates have been fabricated using vacuum-assisted resin transfer molding (VARTM). Five fiber complexes and a two-part epoxy resin system have been used in the study to fabricate panels of twenty different laminate constructions. These panels have been subjected to physical testing to measure density, fiber volume fraction, and void fraction. Coupons machined from these panels have also been subjected to mechanical testing to measure elastic properties and strength of the laminates using tensile, compressive, transverse tensile, and in-plane shear tests. Interlaminar shear strength has also been measured. Out-of-plane displacement, axial strain, transverse strain, and inplane shear strain have also been measured using photogrammetry data obtained during edgewise compression tests. The test data have been reduced to characterize the elastic properties and strength of the laminates. Constraints imposed by test fixtures might be expected to affect measurements of the moduli of anisotropic materials; classical lamination theory has been used to assess the magnitude of such effects and correct the experimental data for the same. The tensile moduli generally correlate well with experiment without correction and indicate that factors other than end constraints dominate. The results suggest that shear moduli of the anisotropic materials are affected by end constraints. Classical lamination theory has also been used to characterize the level of extension-shear coupling in the anisotropic laminates. Three factors affecting the coupling have been examined: the volume fraction of unbalanced off-axis layers, the angle of the off-axis layers, and the composition of the fibers (i.e., carbon or glass) used as the axial reinforcement. The results indicate that extension/shear coupling is maximized with the least loss in axial tensile stiffness by using carbon fibers oriented 15{sup o} from the long axis for approximately two-thirds of the laminate volume (discounting skin layers), with reinforcing carbon fibers oriented axially comprising the remaining one-third of the volume. Finite element analysis of each laminate has been performed to examine first ply failure. Three failure criteria--maximum stress, maximum strain, and Tsai-Wu--have been compared. Failure predicted by all three criteria proves generally conservative, with the stress-based criteria the most conservative. For laminates that respond nonlinearly to loading, large error is observed in the prediction of failure using maximum strain as the criterion. This report documents the methods and results in two volumes. Volume 1 contains descriptions of the laminates, their fabrication and testing, the methods of analysis, the results, and the conclusions and recommendations. Volume 2 contains a comprehensive summary of the individual test results for all laminates

Promoting University Inventors: Patent Collection in Shocker Open Access Repository

Wichita State University is known for its advances in STEM research for many decades, but there were few inventions patented by WSU. In recent years, commercialization of the results of applied research, especially bioengineering, became a university focus; the number of WSU owned patents increased significantly. WSU initiated several initiatives to support university inventors. These included the development of the Innovation Campus and WSU Venture. The Wichita State University Libraries decided to join these efforts by not only providing information to inventors as a Patent and Trademark Resource Center but to archive and increase awareness of their patents. To increase the visibility of the work of WSU inventors, Wichita State University librarians created a collection of Wichita State Patents in the university\u27s institutional repository SOAR: Shocker Open Access Repository (Wichita State University Patents, 2016). Patent records within SOAR are unique compared to those previously established. This paper details our preparation for this project, such as learning best practices, patent databases, vocabulary and classification, development of guidelines, steps in creation and maintenance of the collection, and its usage

On the present and future importance of accounting History

A report of a survey on the present and expected importance of accounting history to practicing accountants and accounting educators. The survey appears to indicate that accounting history is, and perhaps will continue to be, a topic of special interest to us-accounting historians

Wichita State University and Fort Hays State University Extension Center Agreement

Signed agreement of transferable credits, degrees, and programs between Fort Hays State and Wichita State.https://scholars.fhsu.edu/military_science_rotc_docs/1025/thumbnail.jp

Wichita State University and Fort Hays State University Extension Center Agreement

A transfer agreement between WSU and FHSU for military science courses.https://scholars.fhsu.edu/military_science_rotc_docs/1002/thumbnail.jp

Elliott School of Communication Wichita State University

This article provides information on the Elliott School of Communication at Wichita State University. The Elliott School of Communication was established in 1989 merging the former departments of journalism and speech communication. The school is located in the College of Liberal Arts and Sciences and functions as both an academic department and a professional school. It is an integrated communication program that is built on the strengths of the traditions of mass communication and speech communication. While the Elliott School of Communication was established in 1989, discussion actually began five years before that when then-university president Warren Armstrong suggested in a State of the University address that the area of communication was one that should be targeted for review

08-08-2005 SWOSU Graduate Leaves $50,000 for Alma Mater

Southwestern Oklahoma State University in Weatherford has received a $50,000 gift from the estate of Elby (Ward) Threadgill of Wichita Falls, Texas

UA3/3/1 Memo Re: Student Government Finances

Memo to Kelly Thompson from Charles Keown regarding a student fee structure to create a budget for the Associated Student Government. It includes attachments from the following universities: Ball State University Stetson University University of Georgia Morehead State University Eastern Kentucky University University of New Mexico East Tennessee State University University of Oklahoma William & Mary Central Missouri State University Tennessee Technological University Indiana State University Wichita State University Ohio University Murray State University Auburn University University of Montana regarding how they assess student fees, the amounts and the kinds of activities the student governments provide for students