Beam Structural Elements

Note that beam structural elements are based on the Beam-Type Structural Elements and share the underlying formulation and implementation.

Mechanical Behavior

The mechanical behavior of each beam structural element can be divided into the structural response of the beam material itself (see Beam-Type Mechanical Behavior), and the way in which the beam element interacts with the grid. Beam elements may be rigidly connected to the grid such that stresses develop within the beam as the grid deforms. However, more generalized grid connections are available with pile elements.

Response Quantities

Beam element responses include force and moment vectors that act at the end of each beam element (see Beam-Type Response Quantities).

Properties

Each beam element has constitutive model properties and Beam-Type Properties.

FLAC3D Examples

Simple examples are given to illustrate the use of beams. This list is incomplete; a complete list of examples that use beam elements is available in Structural Beam Examples.

• Elastic Beam with Applied Moment
• Elastic Beam with Concentrated Loads
• Elastic Beam (Buckling)
• Elastic Beam (Plastic Hinges)
• Plastic Hinge Formation (with beam elements)
• Elastic-Plastic Beam with Two Plastic Hinges
• Free Vibration of a Cantilever Beam (FLAC3D)
• Braced Support of a Vertical Excavation

FLAC2D Examples

Simple examples are given to illustrate the use of beams.

• Braced Support of a Vertical Excavation
• Simple Beam — Two Equal Concentrated Loads — Beam Elements
• Cantilever Beam with Applied Moment at Tip — Beam Elements
• Buckling of an Axially Loaded Beam
• Plastic Hinge Formation in a Beam Structure

A complete list of examples that use beam elements is available in Structural Beam Examples.

Commands & FISH

• Commands
• FISH Functions