Accession Number:

ADA094711

Title:

Elastic-Plastic Analysis Using a Triangular Ring Element in NASTRAN

Descriptive Note:

Technical rept.

Corporate Author:

ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER WATERVLIET NY LARGE CALIBER WEAPON SYSTEMS LAB

Personal Author(s):

Report Date:

1980-11-01

Pagination or Media Count:

22.0

Abstract:

An elastic-plastic triangular ring element is implemented in the NASTRAN computer program. The plane-strain problem of a partially-plastic thick- walled cylinder under internal pressure is solved and compared with the earlier finite-difference solution. A very good agreement has been reached. In order to demonstrate its application to more general problems, an overloaded thread problem for the British Standard Buttress is examined. The maximum axial and principal stresses are located and their values are determined as functions of loading.

Subject Categories:

  • Theoretical Mathematics
  • Guns
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE