نتایج جستجو برای: x70 steel
تعداد نتایج: 81353 فیلتر نتایج به سال:
In practice, steel tubulars lack a mathematically perfect cylindrical shape, due to non-uniformities introduced during the manufacturing process, construction methods, damages incurred in the transport. The imperfections might exist in the cross section and along the tubular member. Imperfections can greatly affect the behavior of tubular members. The work presented in this paper is perusing ef...
Abstract Sulfate reducing bacteria (SRB) are considered as one of the main causes for failures buried metal pipes. Although many researchers reported that more negative cathodic protection potential was required in environments containing SRB, SRB would increase concentration hydrogen adsorbed on steel surface and thus lead to embrittlement. In study, optimum (CP) potentials X70 bacterial steri...
In the current study a numerical simulation approach has been chosen to simulate the force-deflection response of tubular member under lateral impact in the absence of internal pressure or axial force and the results have then been compared with analytical relations. Two series small scale experiments were carried out by the authors on X70 steel tubes and D/t of 22 and the numerical model has t...
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