By U.S. Department Of Defense
Quantity 2 of this 2002 revised army guide offers tips at the choice and use of composite fabrics. Its presentation of the knowledge accumulated will permit for preliminary exams of fabric adequacy for a selected program. The guide additionally offers a standard database to lessen the volume of validation facts essential to use the knowledge for layout reasons.
desk of Contents
1. common details
2. Fiber houses
three. Matrix homes
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 idea
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Extra info for DEPARTMENT OF DEFENSE HANDBOOK COMPOSITE MATERIALS HANDBOOK POLYMER MATRIX COMPOSITES
Heterogeneous -- Descriptive term for a material consisting of dissimilar constituents separately identifiable; a medium consisting of regions of unlike properties separated by internal boundaries. (Note that all nonhomogeneous materials are not necessarily heterogeneous). Homogeneous -- Descriptive term for a material of uniform composition throughout; a medium which has no internal physical boundaries; a material whose properties are constant at every point, in other words, constant with respect to spatial coordinates (but not necessarily with respect to directional coordinates).
Creel -- A framework arranged to hold tows, rovings, or yarns so that many ends can be withdrawn smoothly and evenly without tangling. Creep -- The time dependent part of strain resulting from an applied stress. Creep, Rate Of -- The slope of the creep-time curve at a given time. Crimp -- The undulations induced into a braided fabric via the braiding process. Crimp Angle -- The maximum acute angle of a single braided yarn's direction measured from the average axis of tow. Crimp Exchange -- The process by which a system of braided yarns reaches equilibrium when put under tension or compression.
MIL-HDBK-17-3F Volume 3, Chapter 1 General Information one another, while the term angleply is used for all others. In the handbook, the two terms are used synonymously. The reservation of a separate terminology for only one of several basic orientations is unwarranted because a laminate orientation code is used. 4. , condensation, ring closure, or addition. Cure may be accomplished by addition of curing (cross-linking) agents, with or without catalyst, and with or without heat. Cure may occur also by addition, such as occurs with anhydride cures for epoxy resin systems.
DEPARTMENT OF DEFENSE HANDBOOK COMPOSITE MATERIALS HANDBOOK POLYMER MATRIX COMPOSITES by U.S. Department Of Defense