Stiff Composite Cylinders for Extremely Expandable Structures

Composite Hydrogen Storage Cylinders

Heuristics for the Design of Thick Composite Cylinders

A heuristic is proposed for a problem that occurs in the design of thick composite cylinders: the selection of the angles of wrap of all the layers forming a cylinder for given material properties and layer thicknesses. The heuristic consists of a local search algorithm that improves on a given initial design by modifying the angle of a single layer in each iteration. Each design is evaluated b...

Deformation Characteristics of Composite Structures

The composites provide design flexibility because many of them can be moulded into complex shapes. The carbon fibre-reinforced epoxy composites exhibit excellent fatigue tolerance and high specific strength and stiffness which have led to numerous advanced applications ranging from the military and civil aircraft structures to the consumer products. However, the modelling of the beams undergoin...

Dimension and simplicity for Ramsey-expandable classes of finite structures

We introduce a notion of manufactured dimension function (with values in R∪{−∞}) for the generic model of a Ramsey-expandable class of finite structures. This idea allows us to extract an automorphism-invariant dimension from a Hrushovski-style psuedo-finite dimension function as presented in [12, 13]. Adapting the technique of [6], we demonstrate that the existence of a manufactured dimension ...

Residual Stresses in Rotating Steel Cylinders with Composite Surface Layers

After undergoing a manufacturing process, materials may exhibit internal stresses referred to as residual stresses. In steel-composite hybrid structures, residual stresses are typically formed due to the unequal thermal behaviour of the steel and composite. Thus, knowledge of the residual stress state is important in the assessment of the external-internal loading in steel-composite hybrid stru...