Some interesting mechanical behaviors of fiber composite materials

Conference · Mon Jun 12 04:00:00 EDT 1978

OSTI ID:6824402

Chiao, T T

In the course of studies of the mechanical behaviors of aramid/epoxy and the high-strength glass/epoxy composites, two interesting but puzzling behaviors were observed. First, when a sustained tensile load is removed any time before stress-rupture failure, the composites retain almost their full original strengths. Second, the contribution of a high-elongation, low-modulus matrix to the performance of a simple glass composite seems to be surprisingly little. These results have raised questions about the validity of the strength retention test as well as the usefulness of a low-modulus matrix in fiber composites.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6824402
• Report Number(s): UCRL-80908(Rev.1); CONF-780916-1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360403* -- Materials-- Polymers & Plastics-- Mechanical Properties-- (-1987)
ARAMIDS
ELONGATION
EPOXIDES
FAILURES
FIBERS
GLASS
MATERIALS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
REINFORCED MATERIALS
REINFORCED PLASTICS
STRESSES
TENSILE PROPERTIES
TIME DEPENDENCE