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What is a composite grid stiffened structure?

Typically, Composite Grid Stiffened Structures are fabricated using a continuous fiber, organic composite material. These structures are characterized by a shell structure (or skin) Page 2 supported by a lattice pattern (or grid) of stiffeners.

What is Orthogrid structure?

An orthogrid is a variation of an isogrid featuring rectangular openings rather than triangular ones. This grid configuration is employed to reinforce highly resilient components, primarily within the aerospace sector and related applications.

What is the difference between Isogrid and Orthogrid?

Isogrid is able to withstand both compressive and bending loads, making it ideal for space and aerospace applications. Orthogrid has similar benefits to Isogrid, however it differs in terms of its structural pattern the stiffening ribs use a square or rectangular waffle pattern rather than triangular.

What is the structure of the Isogrid?

Isogrid structures are constituted by a thin skin reinforced with a lattice structure. Such structures are adopted in the aeronautical industry since they present both structural resistance and lightness. The triangular pattern is very efficient because it retains rigidity while saving material and therefore weight.

What is the purpose of the isogrid?

Uses. Isogrid panels form self-stiffened structures where low weight, stiffness, strength and damage tolerance are important, such as in aircraft or space vehicles. Aerospace isogrid structures include payload shrouds and boosters, which must support the full weight of upper stages and payloads under high G loads.

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