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Mechanism study on subcritical crack growth of flabby and intricate ore rock YUAN Hai-ping(袁海平), CAO Ping(曹 平), XU Wan-zhong(许万忠) School of Resources and Safety Engineering, Central South...; Abstract: Double torsion specimens were applied to study the subcritical crack growth of flabby and intricate ore in Jinchuan Ⅲ Mine. The relation between......
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Elastic-plastic analytical solution for centric crack loaded by two pairs of point shear forces in finite plate ZHOU Xiao-ping(周小平)1, LING Tong-hua(凌同华)2 1. School of Civil Engineering...: The near crack line analysis method was used to investigate a centric crack loaded by two pairs of point shear forces in a finite plate, and the analytical solution was obtained. The solution......
Acoustic Emission Monitoring the Fatigue Crack Growth in SM50B-Zc Steel朱祖铭,王中光,蓬钧摘 要:<正> The acoustic emission(AE)characteristicsfrom the fatigue crack propagation in SM50B-Zcsteel were strongly affected by the environment me-dium.The AE feature from the fatigue process bothin air and in 3.5% NaCl aqueous solution mani-fested a periodicity which......
A Method of Observing Fatigue Crack Growth by SEM穆恩生,林吉忠,吴玉树,胡玉祥,成兆银摘 要:<正> This paper introduces a modified control cir-cuit of static tensile stage of Cambridge S-200SEM.The function of the stage is extended to thatof a tensile/compressive dynamic fatigue testingstage.It can be used for studying fatigue microcharacteristic and crack......
Fatigue Crack Propagation in Plain Carbon Dual-phase Steel雷廷权,林广湧摘 要:<正> The effect of volume fraction VM and carboncontent(%C)M of martensite was studied on the fa-tigue crack propagation behaviour of plain carbonmartensite plus ferrite M+F dual-phase steel.Theexperimental results show that the △Kthdecreasesand da/dn increases with increasing VM......
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As-extruded AZ31B Magnesium Alloy Fatigue Crack Propagation Behavior张红霞,王文先College of Material Science and Engineering,Taiyuan University of Technology摘 要:The fatigue crack propagation rate of as-extruded AZ31B magnesium alloy was studied. Compact tension [C(T)] of the notch direction parallel (T-L), vertical (L-T), and inclined at 45o to the extrusion......