CosmosWorks算法验证文件 1 (Static Analysis)

tigerdak

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/ |0 i) T" f# g8 n. v8 S这是我从ANSYS的算法验证文件转换过来的，同样适用于CosmosWorks。在计算实际的工程问题以前应该先计算一个类似的验证文件，比较计算结果以验证自己算法的正确性。也可以作为有限元例题使用。
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标题    Cylindrical Shell Under Pressure
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; i, A" ~5 l  ROverview

Reference:	S. Timoshenko, Strength of Material, Part I, Elementary Theory and Problems, 3rd Edition, D. Van Nostrand Co., Inc., New York, NY, 1955, pg. 45, article 11. A. C. Ugural, S. K. Fenster, Advanced Strength and Applied Elasticity, Elsevier, 1981.
Analysis Type(s):	Static Analysis

& L) H) H) V" U, dTest Case

A long cylindrical pressure vessel of mean diameter d and wall thickness t has closed ends and is subjected to an internal pressure P. Determine the axial stress σy and the hoop stress σz in the vessel at the midthickness of the wall.

Figure 13.1  Cylindrical Shell Problem Sketch



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Material Properties E = 30 x 106 psi υ = 0.3

Geometric Properties t = 1 in d = 120 in

Loading P = 500 psi

8 p6 G6 Z8 y" _% k5 D' ]% UAnalysis Assumptions and Modeling NotesAn arbitrary axial length of 10 inches is selected. Nodal coupling is used in the radial direction. An axial force of 5654866.8 lb ((Pπd2)/4) is applied to simulate the closed-end effect.
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/ ~3 j5 Q4 D8 H5 rResults Comparison

	Target	ANSYS	Ratio
Stressy , psi	15,000.	15,000	1.000
Stressz , psi	29,749.	29,750.	1.000

[ 本帖最后由 tigerdak 于 2007-11-5 10:48 编辑 ]