Abstract: Earned Value is a project control technique which provides a quantitative measure of work performance. It involves a crediting (earning) of budget dollars as scheduled work is performed. The earned value technique is a ...

Abstract: The analytical inclusion of the effects of initial curvature and lateral load in the force deformation equations of a two‐noded beam‐column element is considered. Current position‐(Eulerian) based equations are developed ...

Abstract: This paper presents a study on the influence of material properties on the energy absorption capabilities of composite sandwich panels. This is of interest as increased energy absorption capability is an effective approach ...

Abstract: This paper presents the development and application of a simplified analytical model to analyze the energy response of an idealized composite sandwich panel under blast loads. The model is used to gain insight into optimizing ...

Abstract: In this article, we study the characteristics of steady autorotation of a tethered autogyro. The phenomenon of autorotation refers to the natural spinning of a rotor in a wind field. We explore the viability of tethered ...

Abstract: This paper presents a control-oriented model for describing the steady-state and dynamic behavior of a single-winged samara seed-pod in autorotative descent. A negligible lateral center of mass motion and constant, prescribed ...

Abstract: A nonlinear stiffness matrix based computer program is used to investigate the stability of elastic space structures whose likely failure modes are determined by examining the tangent stiffness matrix of the structure near ...

Abstract: We developed an integral heat-pipe/evacuated-tube solar collector in which the inner receiver tubes form the evaporator sections of glass heat pipes. This paper describes both theoretical analyses ...