Development of a compact material testing machine for the education of strength and fracture of materials.

本研究开发了一种紧凑型材料试验机，可用于材料强度教学的讲堂。研制的拉压试验机包括拉压试验机、计算机系统和计算机系统，计算机系统计算输入信号作为应力和应变数据，并显示其数据和显微镜的图形，以观察材料的宏观和微观变形和断裂。因此，学生更容易理解复杂材料的变形和断裂，也对材料的强度感兴趣。研制的仪器无需专业知识，即可直观、明确地了解材料的变形和断裂情况，可用于儿童、老年人等开放式校园的讲座。本研究证实，利用测试机进行讲授，能更好地提高学生对材料强度的兴趣。然而，为了将所开发的测试仪应用于常规讲座，认为需要改进教材和可视化程序，并通过增加讲座来检查学生的反应和教育效果。然后，通过以上结果的反馈，开发出利用材料试验机进行材料强度教育的新方法。

This study developed a compact material testing machine which can be used in the lecture room for the education of the material strength. The developed testing machine includes a tension-compression testing machine, computer systems which calculate the input signals as stress and strain data and show the graphic of its data and microscopes in order to observe the macroscopic and microscopic deformation and fracture of materials.This machine was designed so as to be possible to observe the material deformation macro and microscopically at the same time. Thus, the students understand the complex material deformation and fracture easier and also take interest in the material strength. The developed machine hepls to understand the material deformation and fracture intuitively and definitely even with no professional knowledge, so it can be used for the lectures such as a open campus for children and aged persons. This study confirmed that the lecture using the testing machine appeals to the students for increase their interest in the material strength much. However, in order to apply the developed testing machine to the regular lecture, it was considered that the improvements of teaching materials and visual programs are needed and also examine the response of students and the educative results thorough the additional lectures. Then, the new method of the education of material strength using the material testing machine will be developed by the feedback from the above results.