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Updated: May 25, 2026

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BOTTS:宽带优化时间-温度叠加,以极大地加速粘弹性数据采集

Richard J Sheridan1, Stefan Zauscher1, L Catherine Brinson1

  • 1Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina, USA. richard.sheridan@duke.edu.

Soft matter
|September 11, 2024
PubMed
概括

这项研究引入了一种分析粘弹性材料的更快方法. 通过使用声扫描而不是离散频率扫描,研究人员可以更快地生成主曲线,加速材料设计.

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Temperature Dependent Deformation01:12

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In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added together...
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Elastic Strain Energy for Shearing Stresses

As discussed in previous lessons, strain energy in a material is the energy stored when it is elastically deformed, a concept crucial in materials science and mechanical engineering. This energy results from the internal work done against the cohesive forces within the material. When a material undergoes shearing stress and corresponding shearing strain, the strain energy density, which is the energy stored per unit volume, is calculated. Within the elastic limit, where the stress is...