Mechanical behaviour for aeronautical structures with embedded electric cables under low energy impact

Active tensegrity structures with sliding cables – static and dynamic behaviour

Tensegrities are spatial, reticulated and lightweight structures that are increasingly investigated as structural solutions for active and deployable structures. Tensegrity systems are composed only of axially loaded elements providing opportunities for actuation and deployment through changing element lengths. In cable-based actuation strategies, the deficiency of having to control too many ca...

Mechanical behaviour of the « head - neck » system under impact acceleration

Mechanical and mathematical models of human body are the effective instruments for solving the problem of elaboration of protection against impact acceleration, which arise from an accident. These models should describe the dynamics of vertebral column in general and behaviour of intervertebral disks in particular. A great number of mathematical model were proposed for this purposes. The model ...

Size Effect on the Damaged Areas of Glass/Epoxy Structures under Low Velocity Impact

Most impact tests are carried out on specimens with specific stacking sequence and dimensions to meet standard and experimental limitations. The damaged areas and the resulted reduction in the strength values of specimens may not agree very well with those of real application. In this paper an attempt is made to study the variation in the size of damaged areas due to varying the dimension of te...

Analyses of composite structures behaviour with embedded Bragg grating sensors

Structural health monitoring of composite structures may be accomplished by measuring strains with embedded optical fibre sensors. In this paper, we present the performance of Bragg grating sensors, which are imbedded into a carbon composite laminate and them bonded to the structure in analyse. The paper will briefly discuss the results and compare them with a free fibre Bragg grating bonded in...

North Atlantic Treaty Organization Advisory Group for Aeronautical Research and Development Post Buckling Behaviour Op Structures