文档介绍：L O C K H E E D M A R T I N
Engineering & pany
NASA Contractors Report 4751
Standard Test Methods for
posites
John E. Masters & Marc A. Portanova
Lockheed Martin Engineering & pany,
Hampton, Virginia
Contract NAS1-19000
September 1996
Table of Contents
Abstract ........................................................................................................ 3.
1. Introduction .................................................................................................. 4.
2. Description of Materials ............................................................................ 6.
3. Standard Guide for the Instrumentation of posites ......... 16.
4. Standard Method for Unnotched Tension Testing ............................... 23.
5. Standard Method for pression Testing ..................... 32.
6. Standard Method for Open Hole Tension Testing ............................... 42.
7. Standard Method for Open pression Testing ..................... 49.
8. Standard Method for Filled Hole Tension Testing ............................... 60.
9. Standard Method for Bolt-Bearing Testing ............................................ 68.
10. Standard Method for Interlaminar Tension Testing ............................. 76.
2
Abstract
Standard testing methods posite laminates reinforced with
works of braided, woven, or stitched fibers have been evaluated.
The microstructure of these "textile" composite materials differs significantly from
that of tape laminates. Consequently, specimen dimensions and loading
methods developed for tape posites may not be applicable to textile
composites. To this end, a series of evaluations were made to assess the
applicability of testing practices currently used in posite industry to
posite materials.
Information was gathered from a variety of sources and analyzed to
establish a series of mended test methods. The current practices
established for posite materials by ASTM and the MIL-HDBK-17
Comm