In high toughness line-pipe material, inverse fracture is sometimes observed on fracture surface of Drop Weight Tear Test (DWTT) specimen. Inverse fracture is defined as the cleavage fracture that is observed after slant ductile fracture. The initiation point of inverse fracture is mostly located ...
1.The drop hammer impact testing machine is mainly used for ferrite steel drop weight tear test (ie DWTT). Also can be customized according to user needs in different forms of hammer and anvil to meet the requirements of other test methods. ...
Drop weight tear test was conducted and arrowhead marking (AHM) and separation were observed. To elucidate the formation mechanism of these fracture patterns, quasi-static test, finite element analyses and fractographic analyses were conducted. As a result, it was understood that the AHM comprises ...
美 英 un.落锤扯裂试验 英汉 un. 1. 落锤扯裂试验 例句 释义: 全部,落锤扯裂试验
TheDWT100-42drop weight tear trester fromImatekfeatures impact energy up to 103,000J requiring a floor-to-ceiling height of 7.5m (1000kg to 2500kg impact mass at 4.5m/s to 9.0m/s impact velocity) Other Equipment by this Supplier
K ywor s:drop-weightteartest(DWTT);highenergypendulumimpacttest;absorbedenergy;shearingarea 0前言 落锤撕裂试验是测试管线钢材料韧性的一种 方法,现已被广泛应用于抗脆性断裂扩展性能的 评价 [1] 。试验目的主要是建立断口形貌与温度的关 系,从而确定管线钢材料的韧脆转变温度,以保 证管线在韧性温度区内工作...
2) drop weight tear test 落重扯裂试验 3) drop weight test 滴重试验落锤试验 4) Drop test 坠重试验;坠落试验 5) drop weight nil ductility transition test 落重零延性转变试验 6) Drop-weight test 落锤试验 1. Numerical analysis on the ignition mechanism of explosive in drop-weight test ...
ASTM E208 The ASTM E208 Drop-Weight Test is used primarily to determine the Nil-ductility transition temperature or NDT of ferritic steels of 5/8 in thickness and over. This particular drop weight test was initially developed by the Navel Research Laboratory in 1952 and published as Department ...
Drop Weight Tear Test of Linepipe Materials by Using Laterally Compressed Specimens The use of pressed notch drop weight tear test (PN-DWTT) for a highly ductile linepipe steel encounters an abnormal fracture appearance, and raises difficu... T Ishihara,J Kondo,T Kitada,... - 《Transactions...
3) drop-weight test 落重试验4) drop weight tear test 落锤撕裂试验 1. The crack propagation rate of pipes was mainly dependent on FATT" of pipeline steel, and FATI" can be measured by drop weight tear test. 采用落锤撕裂试验(DWTT)方法对输油(气)管线钢API5LX65的止裂性能进行了试验研究...