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Elastic-plastic nonlinearities considering fracture mechanics

Authors
Journal
Computers & Structures
0045-7949
Publisher
Elsevier
Publication Date
Volume
25
Issue
6
Identifiers
DOI: 10.1016/0045-7949(87)90205-7
Disciplines
  • Mathematics
  • Physics

Abstract

Abstract The solution of fracture mechanics type problems including material and geometric non-linearities along with time-independent and time-dependent constitutive relations is discussed. The effect of solution tolerances on a fracture type problem are discussed and the use of Green's strain tensor and the Piola-Kirchhoff stress tensor is examined in a 1-D analysis and a 2-D fracture problem. A comparison of large and small displacement analysis for a center-cracked panel with elastic-plastic material is made. Small displacement, viscoplastic analysis results also are presented for a center-cracked panel.

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