By U.S. Department Of Defense
Quantity 2 of this 2002 revised army instruction manual presents assistance at the choice and use of composite fabrics. Its presentation of the information gathered will enable for preliminary checks of fabric adequacy for a selected program. The instruction manual additionally offers a typical database to lessen the quantity of validation info essential to use the information for layout reasons.
desk of Contents
1. normal info
2. Fiber houses
three. Matrix houses
four. Carbon Fiber Composites
five. Aramid Fiber Composites
6. Glass Fiber Composites
7. Boron Fiber Composites
eight. Alumina Fiber Composites
nine. Silicon Carbide Fiber Composites
10. Quartz Fiber Composites
Appendix A1. MIL-HDBK-17A information
Standardization record development thought
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Extra resources for DEPARTMENT OF DEFENSE HANDBOOK COMPOSITE MATERIALS HANDBOOK POLYMER MATRIX COMPOSITES
Tolerance -- The total amount by which a quantity is allowed to vary. Tolerance Limit -- A lower (upper) confidence limit on a specified percentile of a distribution. For example, the B-basis value is a 95% lower confidence limit on the tenth percentile of a distribution. Tolerance Limit Factor -- The factor which is multiplied by the estimate of variability in computing the tolerance limit. Toughness -- A measure of a material's ability to absorb work, or the actual work per unit volume or unit mass of material that is required to rupture it.
Selvage or Selvedge -- The woven edge portion of a fabric parallel to the warp. Set -- The strain remaining after complete release of the force producing the deformation. Shear Fracture (for crystalline type materials) -- A mode of fracture resulting from translation along slip planes which are preferentially oriented in the direction of the shearing stress. Shelf Life -- The length of time a material, substance, product, or reagent can be stored under specified environmental conditions and continue to meet all applicable specification requirements and/or remain suitable for its intended function.
Modulus, Young's -- The ratio of change in stress to change in strain below the elastic limit of a material. (Applicable to tension and compression). Modulus of Rigidity (also Shear Modulus or Torsional Modulus) -- The ratio of stress to strain below the proportional limit for shear or torsional stress. Modulus of Rupture, in Bending -- The maximum tensile or compressive stress (whichever causes failure) value in the extreme fiber of a beam loaded to failure in bending. 4(a) Fb = I where M = maximum bending moment computed from the maximum load and the original moment arm, c = initial distance from the neutral axis to the extreme fiber where failure occurs, I = the initial moment of inertia of the cross section about its neutral axis.