自作ねじり試験器による材料力学導入教育

概要

論文の詳細を見る
In mechine designs,the consideration for the strength and stiffness of members is required for the function and safety.To evaluate mechanical properties of materials,various experiments are executed.The shear elastic constant is an important parameter that influences the shear deformations. The shear elastic constant is usually obtained by the torsion test.But the torsion tests are not so much conducted at the student experiment.So in this paper,a simple torsion tester was manufactured for the introduction education of strength of materials.The torsion tester was made some kinds of efforts for the visual sensation of shear defomation.The validity of the tester was confirmed by the Ewing's machine.The questionnaire was also taken for the grasp of the understanding level,and the student of 80 percent was the positive opinion.