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在记忆中的振动和流动之间的过渡条件是粘贴的记忆效应
Chihiro Uemura1, Akio Nakahara2, Yousuke Matsuo2
1Department of Space and Astronautical Science, School of Physical Science, SOKENDAI (The Graduate University for Advanced Studies), Sagamihara, Kanagawa 252-5210, Japan and DigitalBlast, Inc., Tokyo 101-0051, Japan.
Physical review. E
|April 18, 2024
概括
密集的面料表现出运动记忆. 干燥糊形成垂直于振动和平行于流动的裂,证明了这些记忆效应. 小的振荡应变回忆起振动;大的变形回忆起流动.
科学领域:
- 体科学是一种体科学.
- 材料科学是一种材料科学.
- 类风病学 类风病学 类风病学
背景情况:
- 体悬浮剂或糊剂具有可塑性,使它们能够保留过去运动的记忆.
- 干燥糊表现出受先前振动和流动运动影响的干燥裂纹图案.
研究的目的:
- 为了研究干燥糊的记忆效应.
- 为了确定应用剪切应变和保留的运动记忆类型之间的关系.
- 为了识别过渡的关键剪切应变幅度,将记忆粘贴从振动到流动.
主要方法:
- 使用风力计将受控的振荡式剪切应变应用于糊.
- 分析干燥过程中形成的干燥裂纹.
- 将裂纹方向与所施加的剪切应变幅度和类型相关联.
主要成果:
- 干燥裂纹与振动运动垂直,与流动运动平行地传播,表明显著的记忆保留.
- 确定了振荡式剪切应变的值幅度,在此以上,粘贴从记忆振动过渡到记忆流动.
- 大量的剪切变形,不一定是振荡性的,足以诱导流量记忆.
结论:
- 粘贴记忆效应受应用变形的性质和幅度所支配.
- 小幅振荡剪切应变对于保存振动记忆至关重要.
- 足够大的剪切变形足以诱导和保存流量记忆.
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