NEi Explicit provides analysis capability for the following solution types:

Analysis Procedures

• Transient Explicit Dynamics
• Restart
• Full Large Deformation/Large Rotation Formulation
• Material failure and element deletion capability

Material Models

• Isotropic Linear Elastic
• 2D and 3D Orthotropic Linear Elastic
• Laminar Ortho Linear Elastic
• Mises Plasticity
• Crushable Foam
• Hyperelastic with Mullins Effect

Element Library

• 3D Solid: CHEXA, CPENTA, CTETRA
• 3D Shell & Membrane: CQUAD4, CQUADR, CTRIA3, CTRIAR
• 3D Beams & Trusses: CROD, CBEAM, CBAR, CELAS1
• Point Mass & Rotary Inertia – CONM2
• Miscellaneous: CBUSH, CWELD
• Rigid Bodies – RBE2Initial Conditions

Local Coordinate Systems

• Rectangular
• Cylindrical
• Spherical

Parallel Execution

• Domain Decomposition
• Available on both distributed memory and shared memory platforms

Contact Modeling

• Consistent with NEi Nastran Contact Definition: BSSEG, BSCONP
• Large deformation contact sliding with friction
• Automatic contact tracking of all contact surfaces
• Fully automatic contact surface generation
• Contact surface definitions using individual user specified
  surfaces
• Shell/Membrane surfaces including
  thickness offset

NEi Explicit is a completely new explicit dynamics module from NEi Software. [More Animations]

Damping

• Material Damping
• Structural Damping

Loads

• Amplitude Functions
• Point Loads:
  FORCE, FORCE1
• Point Moments:
  MOMENT, MOMENT1
• Gravity: GRAV
• Pressure: PLOAD4

Single Point Constraints

• Amplitude Functions
• Prescribed Displacement, Velocity and Acceleration

General

• Fully compatible with NEi Nastran input
• Binary neutral output files
• Available on: Windows, Linux
• Complete training courses
• Manuals: User’s Manual, Theory, Example Problems, Tutorial

Our new explicit module provides solutions for highly nonlinear, contact/impact simulations.
[More Animations]