Abstract: This paper presents the experimentation and finite-element analysis of a unique structure called a celestial icosahedron. The structure is being considered in a project related to lighter-than-air vehicles. The dimensions ...

Abstract: This paper attempts to characterize the various methods that may be used in defining the vibration features of a plate dimensionally proportioned to represent a turbine compressor blade. The comparison is specifically ...

Abstract: This paper makes use of the Duffing oscillator equation to represent the dynamic nonlinearity of rectangular plates. The response of the nonlinear oscillation of a beam leads to parameters that are determined and compared ...

Abstract: This paper presents an analytical procedure for predicting instability loads of composite tires using a simplified tire model. The tire is modeled as a closed composite torus with geometric nonlinearities. The equations ...

Abstract: This paper considers the state of the art in several important areas of research on adhesively bonded joints. The paper reviews the studies dealing with environmental and viscoelastic effects on stresses in adhesive joints. ...

Abstract: This research discusses the design, modal analysis, and additive manufacturing of a hexakis icosahedron frame for use in a vacuum lighter-than-air vehicle (VLTAV). A frame in the shape of a hexakis icosahedron, when encased ...

Abstract: In this work, a gouged section of 1080 railroad rail steel is examined using metallographic techniques to characterize the nature of the damage. The gouging was performed by a rocket sled at ...