The Brazilian NANOSATC-BR - CubeSat Development Program is based on the worldwide CubeSat concept with emphasis on the Capacity Building of the new generation of aerospace professionals through every step (planning, development, implementation and operation) of a space project. The central idea of the NANOSATC-BR satellites is to monitor in real time the space weather and atmosphere anomalies over the Brazilian territory, such as the Geomagnetic field disturbs and its effects on the region known as the South Atlantic Magnetic Anomaly (SAMA). In order to accomplish such mission, the nanosatellite will use off-the-shelf magnetic field sensor, magnetometers and sounders as payloads. Furthermore, NANOSATC-BR1, the first NANOSATC-BR's satellite project, aims to assist as a testing platform of integrated circuits, designed and developed in Brazil, which will be used in future space mission. Hence, the main goal of the present paper is to demonstrate the actual stage of the NANOSATC-BR1 satellite, presenting the scheme and the student's involvement on project, focusing upon studies and analysis performed on the mechanical platform. The mechanical platform is a typical 1U CubeSat structure with a total mass of 190g, and has been analyzed in order to predict the mechanical behavior under launch and space environment. Three different analysis have been performed: static, modal and frequency response. The results will be exposed and discussed based on the Indian Polar Satellite Launch Vehicle requirements and mechanical project requirements. In conclusion, it is presented a summary of the present studies and proposals for a new 1U CubeSat platform, developed to support the subsystems of future academic projects.