PLM and SEM observations of the fracture surfaces and deformed regions beneath the fracture surfaces revealed that the fracture process of Nylon 6 was brittle, which was originated from the plastic constraint at the notch tip.

Stability analysis and determination of maximum second-order moment of cantilever beam with elastic constraints;

Static analysis of hanging submarine pipeline with elastic constraint;

The results demonstrate that the elastic constraint range of the soil on the pipeline is quite small and the plastic slippage of the soil takes place soon after the elastic state.

The article simply expounders the Theory of Disequilibrium Transportation Planning on the basis of analyzing the causes of traffic congestion problem,and analyses the urban transportation planning rigid constraint qualification, sequentially,educes concrete limit constraint qualification,provides a certain theoretical basis and design parameters to transportation planning.

A local map is presented for n-dimensional nonlinear dynamical systems with rigid constraints.

Fuzzy processing strategy for CMMO with priority flexible constraints;

A new method of assignment problem with flexible constraints;

Based on the concept of planning with flexible constraints, two different mathematical models of adopting generation adjustment were established.

The reason to reduce the complex order is divided into the dominant restraint and the recessive restraint.

Critical force and deformation of elastic restraint rod not only depend on the rod cross section, but also on the restraint condition.

In consideration of the randomness of elastic restraint stiffeness and both cable stiffeness and cable pretension, the general formulas for analyzing random internal forces of the prestressed steel truss by perturbation methed are obtained.