摘要
高精度电子万能试验机绘出的材料载荷－变形曲线往往没有明确的初始直线部分，传统求弹性模量Ｅ的方法不能应用。电子试验机的两点法求Ｅ，有一相当大的人为因素，结果不可靠。自动测定弹性用量Ｅ软件能挑选出载荷－变形曲线初始部分中的最直段，从而求出合适的Ｅ值。
Load-elongation curve of materials drawn by a hight accurate electronic universal testing mchine do not ften have well-defined initial straight portion; therefore traditional method for the determination of E can not be ap- plied.Two-point method for determining E has quite great artificial factor,and then result obtained by this methos is not very reliable. The best straight part from initial portion of the load-elongation cure can be chosen and the appropri- ate value of E can be detemined.
