arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2003.08065physics.class-phmath-phmath.MP
收藏

关于均匀位错密度场应力的一个注记

A Remark on stress of a spatially uniform dislocation density field

Rice University(莱斯大学)

Siran Li

AI总结:

本文在附加结构假设和更少正则性要求的条件下,将Acharya关于空间均匀位错密度场应力不为零的结果扩展到O(3)

摘要:

在最近一篇引人注目的论文[1](A. Acharya,空间均匀位错密度场的应力,J. Elasticity 137(2019),151--155)中,Acharya证明了在由非线性弹性材料构成的体中,由空间均匀位错密度场产生的应力在无外力作用下可能不为零。[1]中构造的反例本质上是二维的:它使用的是子群O(2)⊕⟨Id⟩⊂O(3)。本文的目的是在附加结构假设和更少正则性要求的条件下,将Acharya在[1]中的结果扩展到O(3)。

英文摘要:

In an interesting recent paper [1] (A. Acharya, Stress of a spatially uniform dislocation density field, J. Elasticity 137 (2019), 151--155), Acharya proved that the stress produced by a spatially uniform dislocation density field in a body comprising a nonlinear elastic material may fail to vanish under no loads. The class of counterexamples constructed in [1] is essentially $2$-dimensional: it works with the subgroup $\mathcal{O}(2) \oplus \langle{\bf Id}\rangle \subset \mathcal{O}(3)$. The objective of this note is to extend Acharya's result in [1] to $\mathcal{O}(3)$, subject to an additional structural assumption and less regularity requirements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑