Overview

ZIP3D is an elastic and an elastic-plastic finite element program to analyze cracks in three dimensional solids. The program may also be used to analyze uncracked bodies or multi-body problems involving contacting surfaces. For crack problems, the program has several unique features including the calculation of mixed-mode strain energy release rates using the three dimensional virtual crack closure technique, the calculation of the J integral using the equivalent domain integral method, the capability to extend the crack front under monotonic or cyclic loading, and the capability to close or open the crack surfaces during cyclic loading. The theories behind the various aspects of the program are explained briefly. Line-by-line data preparation is presented. Input data and results for an elastic analysis of a surface crack in a plate and for an elastic-plastic analysis of a single-edge-crack-tension specimen are also presented. Shivakumar, K. N. and Newman, J. C., Jr. Langley Research Center COMPUTER PROGRAMS; CRACKS; ELASTIC PROPERTIES; FINITE ELEMENT METHOD; PLASTIC PROPERTIES; SOLIDS; SURFACE CRACKS; COMPUTERIZED SIMULATION; CRACK CLOSURE; CYCLIC LOADS; J INTEGRAL; STRAIN ENERGY RELEASE RATE; STRESS INTENSITY FACTORS; THREE DIMENSIONAL MODELS...

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9781723490224

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