Multiple flight regimes during typical aircraft missions mean that a single unique optimized configuration, that maximizes aerodynamic efficiency and maneuverability,\ud cannot be defined. Discrete components such as ailerons and flaps provide some adaptability,\ud although they are far from optimal. Wing morphing can significantly improve the performance\ud of future aircraft, by adapting the wing shape to the specific flight regime requirements,\ud but also represents a challenging problem: the structure has to be stiff to maintain its shape\ud under loads, and yet be flexible to deform without collapse. One solution is to adopt structural\ud elements made of smart materials; Shape Memory Alloys (SMAs) have demonstrated their\ud suitability for many static applications due to their high structural integration potential and\ud remarkable actuation capabilities.\ud In this work, the airfoil camber at the wing trailing edge on a full scale wing of a civil\ud regional transportation aircraft is controlled by substituting a traditional split flap with a\ud hingeless, smooth morphed flap. Firstly, the development and testing of an actuator device\ud based on a SMA ribbon, capable of a net rotation of 5 deg, is presented. Then, a flap bay is\ud designed and experimentally tested in presence of static loads, based on a compliant rib built\ud as a series repetition of the proposed actuator. An aero-thermo-mechanical simulation within\ud a FE approach was adopted to estimate the behavior and performance of the compliant rib,\ud integrating both aerodynamic loads, by means of a Vortex Lattice Method (VLM) code, and\ud SMA phenomenology, implementing Liang and Rogers’ constitutive model. The prototype\ud showed good actuation performance even in presence of external loads. Very good numerical\ud experimental correlation is found for the unloaded case, while some fatigue issues emerged\ud in presence of static load

ResumoO artigo apresenta a análise da interação solo-estrutura de uma construção que revelou, ao longo dos anos, comportamento inadequado de suas fundações. São resumidas análises anteriores de Rosa (2005), incluindo a interação solo-estrutura na previsão dos recalques. Essa nova análise considera, também, a influência das alvenarias na interação. Os recalques distorcionais previstos são analisados em conformidade com os danos, documentados em vários momentos da vida útil da edificação. O modelo de Kelvin foi utilizado para representar o comportamento do solo com o tempo. Verificou-se que, mesmo com as simplificações adotadas, justificadas no artigo, os resultados da análise numérica foram capazes de reproduzir a extensão dos danos, assim como sua localização espacial. Os resultados mostram a importância de uma concepção de projeto de fundações mais realista, contemplando a interação solo-estrutura. Palavras-chave:Interação solo-estrutura, danos estruturais, recalques distorcionais. AbstractAn analysis of soil-structure interaction of a construction with unsatisfactory foundation behavior along time is presented. Previous analyses by Rosa (2005) are briefly described considering soil x structure interaction in predicting foundation settlement. In addition, a new analysis is now presented, including the influence of the masonry in the soil-structure interaction. The predicted distortional settlements are analyzed in conformity with the observed damages documented at various moments of the construction lifetime. Kelvin's model was employed to represent the soil behavior along time. Notwithstanding the simplifications adopted and justified in the article, the results of the numerical analysis were able to reproduce the extent and spatial location of the damages. Such results show the relevance of a more realistic foundation analysis involving soil x structure interaction.