用具有四个自由度的伺服控制试验机来表征受到核爆炸的环状及扁平试样灵敏的机械性能的衰降。提要——具有四个自由度的伺服控制万能试验机成功地应用于鉴定受到模拟核爆炸的环状及扁平试样的机械性能衰降。最初想到对具有弯曲中心线的试样(即从9时的环上截取一段)进行单轴拉伸试验的方 A servo controlled test machine with four degrees of freedom is used to characterize the decay of the sensitive mechanical properties of ring-shaped and flat samples subject to nuclear explosions. Synopsis - A servo controlled universal testing machine with four degrees of freedom has been successfully used to identify the degradation of mechanical properties of annular and flat specimens subjected to simulated nuclear explosions. Initially it was conceived to test the uniaxial tensile test on a sample having a bending center line (ie, a section taken from a ring at 9 o’clock)