A high precision and small sample method for calculating composite allowables is given.

Discussion on the Increased Range of Allowable Stress in the Design Code for Industrial Metallic Piping;

The article theoretically calculated and analysed the assembly Stress of the pontes to proofread the allowable stress of the plate and rivets.

This paper describes the selection of allowable stress about Aluminum material 1050A and 5083 which used in stress analysis intensity calculation of Aluminum railway tank.

This paper analyzes the admissible stresses used to calculate the diamter of axles accord-ing to torsional stress and resultant stress,and some suggestions are given.

Taking a mine auxiliary shaft for example,briefly analyses the reason of winding cage which lost running stability and puts forward the measurement of installing maintaining stability means on cage,and from the strength of winder and crop,makes the allowance weight of maintaining stability means.

Combining permissible strain of the conveying belt.

Applying duplex stress condition analysis and energy conservation principle, the calculation of allowable torque under the action of axial force and shearing force, the calculation of the allowable torque of drillstring in rotating condition are analyzed, so as to let the torque calculation and its limit more approach in-situ practice.