587 research outputs found
Novel Composites for Wing and Fuselage Applications: Speedy Nonlinear Analysis of Postbuckled Panels in Shear (SNAPPS)
Get PDFA simple and rapid analysis method, consisting of a number of modular, 'strength-of-materials-type' models, is presented for predicting the nonlinear response and stiffener separation of postbuckled, flat, composite, shear panels. The analysis determines the maximum principal tensile stress in the skin surface layer under to toe. Failure is said to occur when this stress reaches the mean transverse tensile strength of the layer. The analysis methodology consists of a number of closed-form equations that can easily be used in a 'hand analysis. For expediency, they have been programmed into a preliminary design code called SNAPPS (Speedy Nonlinear Analysis of Postbuckled Panels in Shear), which rapidly predicts postbuckling response of the panel for each value of the applied shear load. SNAPPS response and failure predictions were found to agree well with test results for three panels with widely different geometries, laminates and stiffnesses. Design guidelines are given for increasing the load-carrying capacity of stiffened, composite shear panels
Students’ Journal Writing Practices and Opinions in a Music Methods Course
Get PDFThis article presents an empirical investigation of students’ opinions about summary/reaction journals and their practices in writing those journals within a percussion methods course. An end-of-semester questionnaire was given to students as a means of measuring their perceptions about the journal component of the course. Findings indicate that students did refer to the assignment guidelines while preparing to write their journals. Furthermore, students claim that the journal requirement led them to review course content and prompted their learning about percussion. However, questions remain about the depth of that review and learning. Recommendations for pedagogy of music methods classes and future research are included
Students’ Opinions of Instructional Strategies in a Graduate-Level Creativity Course
Get PDFThis paper empirically examines a variety of instructional strategies as impetus for creative thinking and achievement in a graduate-level university course. This empiricism considers students’ opinions about the strategies used and the resulting effect of the class more holistically. Results indicate that reading the textbook and writing bi-weekly reflection journals were the most valued strategies by students for elevating creative thinking. The course, as a whole, did have benefit in that students felt that it allowed them to transform themselves into more creative thinkers
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