偏心拉伸试验是材料力学试验教学内容之一。传统的万能材料试验机上无法直接进行偏心拉伸试验。设计了一种可安装于万能材料试验机的偏心拉伸简易装置,可以有效测定拉弯组合变形的应变,从而可以计算出材料的最大应力,扩展了万能材料试验机的功能。 Eccentric tensile test is one of the teaching content of material mechanics test. Traditional universal testing machine can not directly eccentric tensile test. An eccentric drawing simple device which can be installed on a universal testing machine is designed. It can effectively measure the strain of the combination of bending and bending, so as to calculate the maximum stress of the material and expand the function of the universal testing machine.