Abstract
This paper deals with fatigue behavior of paper-based friction materials under cyclic compression to tension loading and damage behavior under cyclic compressive loading. The fatigue tests under out-of-plane compressive stress to slight tensile stress loading are conducted to evaluate fatigue strength of friction materials. The tests under cyclic out-of-plane compressive loading are also conducted to investigate influence of compressive stress and load cycles on damage behavior. Two kinds of friction materials are composed of aramid-based fiber and phenolic resin, and cellulose fiber and phenolic resin. Their fatigue strengths decrease with increasing load cycles. The damage density in both materials increases with increasing compressive stress and load cycles.
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