Rib

A raised strip, ridge or folded section that reinforces a surface and increases its resistance to bending.

A rib is a raised strip, ridge or folded section that stiffens a surface. Unlike an extra layer lying flat against the sheet, a rib projects away from it, increasing the depth of the structure. Forces can be carried along the rib, helping the surface resist bending.

A projecting support within or behind a component that increases its resistance to bending.

Link a strengthening feature to the force it resists: for example, ribs stiffen a thin casing wall so it flexes less under a load.

Explain how a fold, rib or fluted core changes the structure; do not just say that it makes the board stronger.

A raised ridge in a textile structure; knitted rib fabric can provide extra thickness and support.

A thin raised feature that stiffens a surface, reducing flexing without making the whole wall thicker.

Thin polymer walls can be supported by ribs—raised strips of material on the inside. Instead of thickening the whole wall, the ribs stiffen selected areas and reduce flexing. Internal webbing forms a supporting network that helps distribute loads through a part.

A supporting strip or ridge that stiffens a panel without increasing the thickness of the whole panel.

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Edexcel GCSE Design and Technology · 1DT0

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Eduqas GCSE Design and Technology · C600