Analysis for influence of the shape of trusses up on the secondary stress;

Analysis of the secondary stress of welded parallel-chord steel trusses;

The off-specification of secondary stress of coke drum overhead gas line in delayed coking unit is analyzed.

In order to direct the remained ore recovery of pillars and treatment of the mined out area, the secondary stress change of ore pillar and wall rock at 420 and above levels in Suichang Gold Mine of Zhejiang Province is monitored by photoelastic stressmeter, and the long-term monitor-site for stability of mined-out area is established.

However, in the pressure vessel design codes, the thermal stress is identified as the secondary stress.

It is easy for primary stress to exceed allowed specifications due to large pipe weight, and carbon steel pipelines suffer from severe corrosion resulted from increased amount of sulfur in feedstock.

A new mathematical model for the coefficient of variable permeability affected by coal body, secondary stress & pressure in coalseam & a constitutive equation for gas migration are improved on the basis of the Secondary stress & deformation of coal body around boreholes in coalseam.

secondary stress.

The torsional stiffness matrix of a thin-walled bedm considering secondary shear stress and it s finite element analysis;