为测定混凝土、石料等脆性材料的抗拉应力应变关系全过程曲线，作者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。通过对高强混凝土试件的实测表明，该装置能减少轴拉过程中偏心的影响，有效地吸收在试件破坏瞬间试验机所释放的弹性变形能，延缓试件的破坏过程，不失为一种解决问题的新途径。 In order to determine the whole process of tensile stress-strain curves of concrete, stone and other brittle materials, the author developed a tension-assisted energy absorber using thin-walled metal sleeves and ball joints in a common material testing machine. The test of high strength concrete specimens shows that the device can reduce the eccentricity during the process of shaft drawing and effectively absorb the elastic deformation energy released by the testing machine at the moment of specimen damage and delay the destruction process of the specimen, The new way of the problem.