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王威强
机械工程学报,1999,35(4)15~20.,-0001,():
-1年11月30日
应用增量理论弹塑性有限元方法以及弹塑性断裂力学J积分理论,深入研究和全面探讨了一种用于含裂纹结构完整性评定的工程方法--失效评定图,以及钝裂纹或缺口根部曲率半径、缺口长度、缺口端部椭圆离心率、试样形式和材料等对其的影响。提出了钝裂纹或缺口应力强度因子和极限载荷修正方法。通过这一方法建立的失效评定图可有效地消除缺口因素对失效评定图的影响,由此,可完全等效地将裂纹失效评定图用于含缺口结构的完整性评定。
缺口分析, 失效评定图, 弹塑性有限元, 结构完整性
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【期刊论文】Design of nozzles for superfine particle preparation by using RESS
王威强, Yan Liu a, b, c, Weiqiang Wang a, *, Aiju Li a
Journal of Pressure Equipment 2(2004)30-34,-0001,():
-1年11月30日
The design of nozzles by using RESS (Rapid Expansion of Supercritical Solution) was carried out in this paper. Based on the re-lated thermodynamics principles, two models to calculate the nozzle inner diameter were proposed which were based upon one-dimensional time-independent flow including adiabatic and convective heat transfer process. The obtained results indicated that one-dimensional time-independent isentropic and adiabatic flow model could satisfy the requirement of engineering design.
Rapid expansion, Supercritical solution, Nozzle, Superfine particles
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