A User's Manual for a Detailed Level Fatigue Crack Growth Analysis Computer Code. Volume I. The CRKGRO Program.

Abstract

This report presents the description of a computer program which was developed to perform detailed fatigue crack-growth analysis on a cycle-by-cycle basis. This program is a two-dimensional crack-growth computer routine. An improved load interaction model which accounts for both the retardation and acceleration effects of the spectrum loading was implemented in the program. This program contains a crack library which consists of 10 subroutines, each containing a specific stress intensity factor solution for a specific crack geometry. The program provides the option for counting the cycles for spectrum loadings through the range-pair counting routine built into the program. It also provides the option to perform parametric studies. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1981
Accession Number
ADA118968

Entities

People

  • James B. Chang
  • Ko-wei Liu
  • M. Szamossi

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Air Force
  • Computer Programs
  • Computers
  • Equations
  • Fracture (Mechanics)
  • Geometry
  • Governments
  • Intellectual Property
  • Materials
  • Mechanics
  • Network Protocols
  • Plastic Explosives
  • Rdx
  • Stress Intensity Factors
  • Three Dimensional
  • Two Dimensional

Readers

  • Business Analytics
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Health Monitoring of Composite Structures.