Accession Number:

ADB010592

Title:

Computer Program (NOLAST) for Non-Linear Analysis of Composite Laminates

Descriptive Note:

Technical rept.

Corporate Author:

AIR FORCE FLIGHT DYNAMICS LAB WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1976-02-01

Pagination or Media Count:

75.0

Abstract:

The computer program NOLAST predicts the response of multidirectional laminates subjected to in-plane loads. It uses piecewise cubic spline interpolation functions to represent the basic stress-strain data. This yields smooth composite strain-strain curves from which accurate moduli of elasticity over the entire range can be determined. Loads are applied incrementally. The predictor corrector and iterative method employed renders the present approach practically independent of the size of load increment. The ultimate cumulative response of the laminate is determined by ply-wise application of an energy based failure criterion.

Subject Categories:

  • Miscellaneous Materials
  • Computer Programming and Software
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE