两种类型的表面处理对人类指甲结构弹性的影响
Hironori Tohmyoh1, Masaru Abukawa1
1Department of Finemechanics, Graduate School of Engineering, Tohoku University, Sendai, Japan.
概括
从软化和硬化处理中量化了指甲的变形性变化. 软化处理降低了指甲的弹性,而强化剂降低了可变形性和增加了刚性.
科学领域:
- 生物材料科学是生物材料的科学.
- 皮肤病学 皮肤病学
- 材料工程是材料的工程.
背景情况:
- 人类指甲具有复杂的三层结构.
- 由于表面处理导致的指甲变形性变化的定量分析是有限的.
研究的目的:
- 量化评估指甲软化和硬化表面处理对人类指甲变形能力的影响.
主要方法:
- 在软化处理之前和之后,纳米印被用来测量指甲板的模量.
- 一个三点曲试验确定了应用在聚乙烯板上的指甲增强剂的模量.
主要成果:
- 软化处理使指甲的模和曲变形结构弹性 (SEB) 在6小时后降低到60%.
- 指甲增强剂 (模244.5 MPa) 将SEB降低到73%,而曲刚度则增加到117%.
结论:
- 该研究成功量化了因软化和硬化表面处理引起的指甲变形性变化.
- 这些发现为了解化和治疗干预的指甲机制提供了定量基础.
相关概念视频
01:21Plastic Behavior
196
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
196
01:26Hooke's Law
379
Hooke's law, a pivotal principle in material science, establishes that the strain a material undergoes is directly proportional to the applied stress, defined by a factor called the modulus of elasticity or Young's modulus.
379