期刊
AICHE JOURNAL
卷 66, 期 6, 页码 -出版社
WILEY
DOI: 10.1002/aic.16946
关键词
-
资金
- National Science Foundation of China [11802270, 11872333, 91852205]
- Zhejiang Provincial Natural Science Foundation of China [LR19A020001]
This article examines the mechanical response of flexible fiber packings subject to triaxial compression. Short fibers yield in a manner similar to typical granular materials in which the deviatoric stress remains nearly constant with increasing strain after reaching a peak value. Interestingly, long fibers exhibit a hardening behavior, where the stress increases rapidly with increasing strain at large strains and the packing density continuously increases. Phase diagrams for classifying the bulk mechanical response as yielding, hardening, or a transition regime are generated as a function of the fiber aspect ratio and fiber-fiber friction coefficient. Large fiber aspect ratio and large fiber-fiber friction coefficient promote hardening behavior. The positions of boundaries between different regimes depend on the confining pressure and fiber flexibility. The hardening packings can support much larger loads than the yielding packings, but larger internal axial forces within fibers and larger fiber-fiber contact forces occur.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据