Accession Number:

ADA183798

Title:

Modifications in EPIC-2 Subcycling and Quadrilaterals.

Descriptive Note:

Final rept. Mar 82-Jul 86,

Corporate Author:

BELYTSCHKO (THEODORE B) INC WINNETKA IL

Personal Author(s):

• Belytschko,Theodore B.
• Lin,Jerry I.
• Jonas,George H.

Report Date:

1987-06-01

Pagination or Media Count:

42.0

Abstract:

The following modifications of the code EPIC-2 are described 1 subcycling, which permits different time steps to be used in different parts of the mesh 2 the addition of a four-node quadirlateral which uses one quadrature point and employs a consistent hourglass control and 3 a rigid interface to interconnect meshes with different element sizes. Both the theoretical and programming aspects are described. Keywords Finite Elements Impact Ballistics.

Descriptors:

• *COMPUTER PROGRAMS
• COMPUTATIONS
• ALGORITHMS
• COMPUTER PROGRAMMING
• FINITE ELEMENT ANALYSIS
• INTERFACES
• MESH
• RIGIDITY

Subject Categories:

• Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE