Developable and undevelopable surfaces

A developable surface is a surface that can be flattened onto a plane without distortion.

Developable surfaces have unique flat patterns.

Developable surface	Undevelopable surface

Fiber distortion and shearing is present only on undevelopable surfaces.

To reduce or remove fiber distortion and shearing, use:

• Cut curves

• Splices

Fiber orientation is important in both, developable and undevelopable surfaces.

Example:

Consider the side of a cylinder. If the fibers align perfectly with the axis of the cylinder, all the fibers will have the same orientation vector, which is the axis of the cylinder. Otherwise, the orientation vectors will change as the fibers wind around the cylinder.

How do I

Define draping data for global plies

Compute draping and flat patterns

Map draped fiber orientation to material orientation

View ply fiber orientation

Change the color spectrum for the fiber orientation display

Export draping results

Learn more

Fiber orientation

List draping results

Ply-based workflow

Defining plies and a stacking sequence

Look up more details

Draping solvers

Fiber alignment methods

Draping solver feedback

Computing draped fiber orientation and flat patterns

Right-click commands for global layup nodes

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Developable and undevelopable surfaces, Simcenter 3D 2021.1 Series

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