At the end of the paper, a stress strain response model of different concrete grade has been built only using the compressive strength, and this model coincides well with the experiment results.
Based on the NACE standard, the behavior of restriction on hydrogen induced cracking (HIC) and sulfide stress corrosion cracking (SSCC) of X80 grade pipeline steel was investigated.
依据NACE标准研究了X80级管线钢的抗硫化物应力腐蚀开裂(SSCC)和氢致开裂(HIC)行为。
3
The stress of E-grade steel coupler knuckle was analyzed and the expression of stress intensity factor of the cracks on the coupler knuckle wrist area was given.