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Effective mechanical behavior of sandwich beams under uncoupled bending and tor...

"International Conference on Applied Mechanics and Mechanical Automation (AMMA 2014)". Serie - Applied mechanics and materials, vol. 590 ; Sandwich geometries, mainly panels and beams are widely used in several transportation industries, namely aerospace, aeronautic and automotive. Sandwich geometries are known for their advantages in structural applications: high specific stiffness, low weight, and possibilit...

Determination of material/geometry of the section most adequate for a static lo...

The acceleration of industrial machines mobile parts has been increasing over the last few years, due to the need of higher production in a short period of time. The machines were dimensioned for a lower value of acceleration, which means there is not enough rigidity for the correct operation at much higher accelerations. Nowadays, the accelerations can be near 12 times the acceleration of gravity. There is the...

Improving the dynamical behaviour of a laser cutting equipment by using a carbo...

In order to improve the dynamic behaviour of an industrial laser cutting equipment a sandwich solution, using a carbon fibre reinforced polymer (CFRP) and polyester foam core, was implemented to construct its main runway structural frame, which supports the cutting head and major laser beam mirrors and lens. Nowadays, the commercial competiveness of laser cutting equipments is considerable enhanced by their hig...

Estudo do mercado livreiro on-line em Portugal : análise do perfil da população...

Tese de mestrado integrado. Engenharia Industrial e Gestão. Faculdade de Engenharia. Universidade do Porto. 2008

Memória material e materiais de memória : apresentação

CRAB: Um robot caranguejo

This paper presents a brief description of the CRAB robot developed by the team of the Unibersity of Aveiro that participated in a world mobile robotics competition in the scope of the 7th International Festival of Science and Technology that took place in Vierzon, France, from the 23rd to the 28th of May 2000.The technical specifications of the competition require that the robots are able to follow a line 60m ...

Substituting conventional steel alloys by carbon fibre composites in structural...

In the present work, a finite element (FE) analysis was employed to validate the use of advanced carbon fibre composites as replacement of traditional low-alloy steel in the construction of the main runway frame structure of a laser cutting equipment currently available in the market. This new composite solution was adopted to increase the current laser equipment precision and cutting speed. The main objective ...

The water in the city of Braga from Roman Times to the Modern Age

The use of traditional and computer-based visualization in archaeology : a user...

Visualization methods are commonly used during the successive stages of the archaeological process. However, it is difficult to determine which methods are more intensively used in each stage and, also, which stage of the archaeological process is more demanding regarding visualization needs. Within a broader questionnaire regarding the use of computer tools, archaeologists were inquired about their use of trad...

Improving the dynamical behaviour of a laser cutting equipment by using a carbo...

In order to improve the dynamic behaviour of an industrial laser cutting equipment a sandwich solution, using a carbon fibre reinforced polymer (CFRP) and polyester foam core, was implemented to construct its main runway structural frame, which supports the cutting head and major laser beam mirrors and lens. Nowadays, the commercial competiveness of laser cutting equipments is considerable enhanced by their hig...