intensity parameter
2.Analyzing the instance in roadbed and cutting engineering of underground karat hole through strength degradation, it reproduces the breaking and steady losing process of the roadbed and cutting the intensity parameter during losing steadily is gained, it has certain directive significance to the roadbed and cutting engineering.
3.The fundamental solutions of complex stress functions or stress intensity factorsfor the equal-parameter orthotrpic plate containing an elliptical hole or a crack are derivedwith the Cauchy integral method,those fundamental solutions are very useful to solve someproblems in elastic mechanics and fracture mechanics by BEM。
5.International Society for Rock Mechanics ( ISRM ) proposed in 1995 a new type of rock fracture toughness specimen??cracked chevron notched Brazilian disk ( CCNBD ), the previous analytical and numerical studies of the dimensionless stress intensity factor, which is an important mechanicel parameter, does not take into account the effects of finite notch width.
7.In order to investigate this relationship,the critical stress intensity factor and the ther-mal shock resistance parameter of three types of alumina ceramics with different micro-structures were compared with their strength losses over a wide range of quenching tempe-rature difference (200℃<ΔT<1200℃) .
9.DRI production process of simulating tests of rotary in laboratory is studied. Influence of adding carbon capacity,reduction time,reduction temperature on ∑Fe,intensity of rotary kiln DRI is analysed. The best direct reduction process parameter of rotary kiln DRI production in this raw material conditions is proposed.
