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User's manual for FRAC3D: Supplement to report on stress analysis for structures with surface cracksThe FRAC3D computer program, designed for use in analyzing stresses in structures (including plates, bars, or blocks) which may contain part-circular surface cracks or embedded circular cracks is described. Instructions are provided for preparing input, including that for the supporting programs LATTICE and MATSOL as well as for FRAC3D. The course of a substantial illustrative calculation is shown with both input and output. The formulas underlying the calculations are summarized and related to the subroutines in which they are used. Many issues of strategy in using this program for analysing stresses around surface cracks are elucidated.
Document ID
19790005235
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Bell, J. C. (Battelle Columbus Labs. OH, United States)
Hopper, A. T. (Battelle Columbus Labs. OH, United States)
Hayes, P. A. (Battelle Columbus Labs. OH, United States)
Date Acquired
September 3, 2013
Publication Date
August 1, 1978
Subject Category
Structural Mechanics
Report/Patent Number
NASA-CR-159401
Report Number: NASA-CR-159401
Accession Number
79N13406
Funding Number(s)
CONTRACT_GRANT: NAS3-21020
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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