Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 61, Issue 1, Pages 125-134Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0266-3538(00)00201-3
Keywords
composite materials; fiber waviness; nonlinear behavior; tensile stress-strain relation; compressive stress-strain relation
Categories
Ask authors/readers for more resources
The effects of fiber waviness on the nonlinear behavior of unidirectional composites under tensile and compressive loadings have been investigated theoretically and experimentally. Unidirectional composites examined were composed of continuous fibers with sinusoidal waviness in a matrix. As a consequence of material and geometric factors, both the tensile and compressive behavior of these composites was generally nonlinear under finite deformation. Analytical models were proposed for predicting the nonlinear tensile and compressive behavior as a function of fiber waviness for three types of fiber waviness pattern: uniform, graded and localized fiber waviness. The material and geometric nonlinearities due to fiber waviness were incorporated into the models based on complementary energy density and an incremental method. Specimens with various degrees of fiber waviness were fabricated. Tensile and compressive tests were conducted on the specimens to obtain the elastic properties and behaviors of the composite materials with fiber waviness. The experimental results were in good agreement with the predictions. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available