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Transverse tensile characteristics of fiber composites with flexible resins: Theory and test results
Author(s) -
Christensen R. M.,
Rinde J. A.
Publication year - 1979
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760190708
Subject(s) - materials science , lamina , composite material , ultimate tensile strength , elongation , transverse plane , tension (geology) , brittleness , tensile testing , modulus , fiber , failure mode and effects analysis , composite number , glass fiber , structural engineering , botany , biology , engineering
A theoretical and experimental investigation has been conducted of the transverse tensile properties of flexible‐resin/ glass‐fiber composite lamina. The objective is to increase the elongation at failure of a lamina in a state of transverse tension so that when a lamina is used in a laminate configuration, it does not suffer premature failure (e.g., failure at a lower strain level than that for a lamina in fiber direction tension). We show that the mode of failure in the transverse tensile lamina differs greatly from that in the neat resin. The failure mode in the lamina form is found to be brittle fracture. From this, it follows that the controlling neat resin property is the low elongation modulus rather than the elongation at failure. Significant improvements in the transverse tensile strain at failure were obtained for the flexible‐resin/glass‐fiber systems studied.