采用獨立雙應(yīng)力函數(shù)分析純彎曲復(fù)合材料厚壁管
發(fā)布時間:2019-03-22 07:48
【摘要】:在純彎曲復(fù)合材料組合管的統(tǒng)一參數(shù)法分析中,采用獨立雙應(yīng)力函數(shù)求解0°和90°的特殊纏繞層及各向同性層,從而代替統(tǒng)一參數(shù)法求解過程中當(dāng)普通層趨向于特殊纏繞層的極限分析,避免了彈性系數(shù)關(guān)于纏繞角的復(fù)雜導(dǎo)數(shù)的計算,特別有利于各向同性材料層不存在纏繞角而難以計算導(dǎo)數(shù)的問題,推廣了統(tǒng)一參數(shù)法的應(yīng)用范圍,是對統(tǒng)一參數(shù)法的一個改進.數(shù)值算例中采用改進的統(tǒng)一參數(shù)法分析了不同復(fù)合材料組合管的力學(xué)性能,結(jié)果與有限元精細(xì)模擬吻合較好,說明本文中方法的有效性.
[Abstract]:In the unified parameter analysis of pure bending composite pipe, the special winding layer and isotropic layer of 0 擄and 90 擄are solved by independent double stress function. Instead of the unified parameter method, when the ordinary layer tends to the limit analysis of the special winding layer, the calculation of the complex derivative of the elastic coefficient with respect to the winding angle is avoided. In particular, it is beneficial to the problem that there is no winding angle in the isotropic material layer and it is difficult to calculate the derivative. It extends the application scope of the unified parameter method and is an improvement of the unified parameter method. The improved unified parameter method is used to analyze the mechanical properties of different composite pipes in numerical examples. The results are in good agreement with the finite element simulation, which shows the effectiveness of the method in this paper.
【作者單位】: 廈門大學(xué)建筑與土木工程學(xué)院;
【基金】:福建省自然科學(xué)基金(2014J01208)
【分類號】:TB33
本文編號:2445407
[Abstract]:In the unified parameter analysis of pure bending composite pipe, the special winding layer and isotropic layer of 0 擄and 90 擄are solved by independent double stress function. Instead of the unified parameter method, when the ordinary layer tends to the limit analysis of the special winding layer, the calculation of the complex derivative of the elastic coefficient with respect to the winding angle is avoided. In particular, it is beneficial to the problem that there is no winding angle in the isotropic material layer and it is difficult to calculate the derivative. It extends the application scope of the unified parameter method and is an improvement of the unified parameter method. The improved unified parameter method is used to analyze the mechanical properties of different composite pipes in numerical examples. The results are in good agreement with the finite element simulation, which shows the effectiveness of the method in this paper.
【作者單位】: 廈門大學(xué)建筑與土木工程學(xué)院;
【基金】:福建省自然科學(xué)基金(2014J01208)
【分類號】:TB33
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1 王先;矩形截面直梁純彎曲問題的再探討[J];青海大學(xué)學(xué)報(自然科學(xué)版);1998年04期
2 陳明;;關(guān)于梁純彎曲中曲率半徑計算公式的思考[J];中國西部科技;2010年29期
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