|
|
发表于 2021-8-26 20:00:05
|
显示全部楼层
UG-84里面没找到小尺寸试样与标准试样的值换算办法。唯一相关的是(-a) For materials that normally have absorbed energy in excess of 180 ft﹍bf (240 J) when tested using full size (10 mm × 10 mm) specimens at the specified testing temperature, subsize (10 mm × 6.7 mm) specimens may be used in lieu of full size specimens. However, when this option is used, the acceptance value shall be 75 ft﹍bf (100 J) minimum for each specimen and the lateral expansion in mils (mm) shall be reported.
全尺寸试样无法取出时,当全尺寸试样冲击功要求超过240J时,可以取(10 mm × 6.7 mm)试样,这种情况下,(10 mm × 6.7 mm)小尺寸试样冲击功不低于100J,同时报告侧面膨胀值。
第一,全尺寸试样冲击功400J或者250J,如果取(10 mm × 6.7 mm)试样,冲击功都是不低于100J吗?
第二,只提到全尺寸试样冲击功超过240J而且可以取出(10 mm × 6.7 mm)试样的情况,其他如全尺寸试样冲击功不超过240J,或者只能取出(10 mm × 5 mm)试样的情况.没找到规定。
|
评分1
-
查看全部评分
|
|