CosmosWorks算法验证文件 6 (Thermal Stress Analysis)

tigerdak

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Title      Thermally Loaded Support Structure

Overview
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Reference:	S. Timoshenko, Strength of Material, Part I, Elementary Theory and Problems, 3rd Edition, D. Van Nostrand Co., Inc., New York, NY, 1955, pg. 30, problem 9.
Analysis Type(s):	Static, Thermal Stress Analysis

Test Case

Find the stresses in the copper and steel wire structure shown below. The wires have a cross-sectional area of A. The structure is subjected to a load Q and a temperature rise of ΔT after assembly.
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Material Properties Ec = 16 E6 psi αc = 92 E-7 in/in-°F Es = 30 E6 psi αs = 70 E-7 in/in-°F

Geometric Properties A = 0.1 in2

Loading Q = 4000 lb ΔT = 10°F

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Analysis Assumptions and Modeling NotesLength of wires (20 in.), spacing between wires (10 in.), and the reference temperature (70°F) are arbitrarily selected. The rigid lower beam is modeled by nodal coupling.
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1 b$ C2 k! Y) G" T! TResults Comparison

	Target	ANSYS	Ratio
Stress in steel, psi	19,695.	19,695.	1.000
Stress in copper, psi	10,152.	10,152.	1.000

[ 本帖最后由 tigerdak 于 2007-11-9 15:28 编辑 ]