For simplicity, SAP 2009 uses only first-order efficiency value for solar heating panels. This works well for most solar panels that have a relatively straight-line efficiency characteristic, however solar panels with poorer insulation and a more curved efficiency characteristic are unfairly rewarded. A simple enhancement of the current calculation is put forward to remedy this anomaly and make...

Most panel method implementations use both low order basis function representations of the solution and flat panel representations of the body surface. Although several implementations of higher order panel methods exist, difficulties in robustly computing the self term integrals remain. In this paper, methods for integrating the single and double layer self term integrals are presented. The ap...

A prototype test system with capacity to reproduce combined loads representative of real loading cases a curved fuselage panel has been developed. This allows the structural validation panels be accomplished. The developed is able apply mechanical and pressurization states under quasi-static dynamic conditions. It designed using CAD models calculated aid Finite Element ensure its integrity. dat...

A study on the bending response of a composite curved panel with pyramidal metallic truss cores suitable for functional applications is presented using a combination of analytical modeling, three-point bending experiments and finite element (FE) based simulations. The aluminum pyramidal cores were constructed using an interlocking method before curing with composite face sheets to fabricate the...

This work describes the high-velocity impact behavior of doubly curved sandwich panels. The panels are manufactured using carbon/fiber epoxy composite face sheets, polyurethane foam core and 3D-printed PLA plastic cellular auxetic (re-entrant) honeycombs. High-velocity tests carried out by a single-stage air gas gun test machine. A spherical steel projectile with radius 5 mm is impacted to cent...

Constructing free-form buildings is very complex due to the difficulty in fabricating curved façade. To install façade, geometric shapes of façade need be divided into panels. The panels developed are classified three categories terms their curvatures, i.e., planar, single-curved, double-curved quality determined by difference between as-built and as-designed panel shapes. Among types panels, d...

Our study presents a set of form-finding procedures to explore curved structures made from interlaced panels. Interlacing introduces a particular coupling between assembly components which has to be formulated along with a pertinent flexible body model. We examine here a hybrid approach: panels are simulated a first time using an elastic rod model formulated within a constrained elastic energy ...

The authors would to like to add a citation to a previously published article on a similar topic: Domokos, Gábor, and Timothy J. Healey. "Multiple helical perversions of finite, intrinsically curved rods." International Journal of Bifurcation and Chaos 15.03 (2005): 871–890. This work relates to the present paper in the following way: the authors numerically study the response of a uniform rod ...

Sandwich construction is widely accepted as a method of construction especially in the aircraft industry. It is a type of stressed skin construction formed by bonding two thin faces to a thick core, the faces resist all of the applied edge loads and provide all or nearly all of the required rigidities, the core spaces the faces to increase cross section moment of inertia about common neutral ax...