SUMMARY OF AVAILABLE CODES
8-7
8.3 TEXCAD
Rajiv A. Naik
References:
R.A. Naik, “Analysis of Woven and Braided Fabric Reinforced Composites,”
NASA CR 194930, June 1994
R.A. Naik, “Failure Analysis of Woven and Braided Fabric Reinforced
Composites,” NASA CR 194981, Sept. 1994.
TEXCAD - Textile Composite Analysis for Design, Version 1.0 User’s Manual,
NASA CR 4639, Dec. 1994. Includes extensive documentation; example problems
for each of the predefined textile forms; and on-line graphics files to aid in
understanding the geometric relations and input parameters.
Format:
Executables are available for Apple Macintosh and Microsoft Windows.
Model:
TEXCAD uses a series of predefined geometric models for plain weaves, 5-
harness satin weaves, 8-harness satin weaves, 2x2 2D triaxial braids, 1x1 2D
triaxial braids (with two different axial patterns), and 3D, multi-interlock, 5-layer
braids. These models require input of a limited number of parameters, including
yarn spacing, yarn count, filament diameter, and braid angle. From these, the code
generates an idealization using straight and sinusoidal segments that matches the
specified yarn volume fraction. A method is provided for entering customized unit
cells. In addition, conventional laminates and n-directional 3D reinforced materials
may be analyzed (the orthogonal weaves of Section 2).
