针对混凝土、石料等非金属材料的抗拉性能试验及其应力应变关系全过程曲线的测定,本文在普通材料试验机上研制了一种采用薄壁金属套筒及球铰方式对中的受拉辅助吸能装置。通过对高强混凝土材料试件的实测表明,该装置能有效地吸收试验机受拉过程中所释放的弹性变形能,减少轴拉过程中偏心的影响,延缓试件的破坏过程,不失为一种解决问题的新途径。 Aiming at the tensile test of nonmetallic materials such as concrete and stone and the determination of the whole curve of stress-strain relationship, this paper developed a kind of tension assisted by thin-walled metal sleeve and ball hinge on common material testing machine Energy-absorbing device. The test of high strength concrete specimens shows that the device can effectively absorb the elastic deformation energy released during the tension test of the test machine to reduce the influence of eccentricity during the process of shaft pull and delay the destructive process of the specimen, The new way of the problem.