摘要
研究了两种J55套管的动、静态断裂韧性,表明以静态断裂韧性计算公式计算动态断裂韧性是可行的.试验结果也表明动态下材料的脆化倾向增强,动态断裂韧性K_(1d)明显低于静态 K_(1c).
The dynamic and static fracture toughness of two kinds of J55 casing is studied and the test method for dynamic fracture toughness is analyzed and discussed in the paper. The results show that it is practical to calculate the dynamic toughness with the calculating formula of static fracture toughness. The brittle tendency of material increases under dynamic condition and the dynamic fracture toughness K_(id) is clearly lower than the static fracture toughness K_(id).
出处
《理化检验（物理分册）》
CAS
1998年第9期10-11,28,共3页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
断裂韧性
脆化
动态
油井
套管
静态
Fracture toughness Brittle Dynamic fracture toughness
