Channel

Problem description

Figure 47 Cross section of the pipe [CHEN2010].

This example has a cross section of a highly heterogeneous channel. This cross section geometry can be defined as shown in Fig. 47 [CHEN2010]. The isotropic material properties are given in Table 23. The layup is defined having a single layer with the thickness 0.001524 m. The result is shown in Table 25 and compared with those in [CHEN2010]. Complete input files can be found in examples\ex_channel\, including channel.xml and materials.xml.

Figure 48 Base points, Base lines and Segments of the channel cross section.

Figure 49 Meshed cross section viewed in Gmsh.

Table 23 Material properties

Name	Type	Density	\(E\)	\(\nu\)
		\(\mathrm{kg/m^3}\)	\(\mathrm{GPa}\)
mtr1	isotropic	1068.69	206.843	0.49

Table 24 Layups

Name	Layer	Material	Ply thickness	Orientation	Number of plies
			\(\mathrm{m}\)	\(\circ\)
layup1	1	mtr1	0.001524	0	1

Result

Table 25 Results

\(\phantom{-}1.906\times 10^7\)	\(0.0\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)	\(-4.779\times 10^4\)	\(-1.325\times 10^5\)
\(\phantom{-}0.0\)	\(2.804\times 10^6\)	\(\phantom{-}2.417\times 10^5\)	\(\phantom{-}2.128\times 10^4\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)
\(\phantom{-}0.0\)	\(2.417\times 10^5\)	\(\phantom{-}2.146\times 10^6\)	\(-7.663\times 10^3\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)
\(\phantom{-}0.0\)	\(2.128\times 10^4\)	\(-7.663\times 10^3\)	\(\phantom{-}2.091\times 10^2\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)
\(-4.779\times 10^4\)	\(0.0\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)	\(\phantom{-}2.011\times 10^3\)	\(\phantom{-}9.104\times 10^2\)
\(-1.325\times 10^5\)	\(0.0\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)	\(\phantom{-}9.104\times 10^2\)	\(\phantom{-}1.946\times 10^3\)

Table 26 Results from reference [CHEN2010]

\(\phantom{-}1.903\times 10^7\)	\(0.0\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)	\(-4.778\times 10^4\)	\(-1.325\times 10^5\)
\(\phantom{-}0.0\)	\(2.791\times 10^6\)	\(\phantom{-}2.364\times 10^5\)	\(\phantom{-}2.122\times 10^4\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)
\(\phantom{-}0.0\)	\(2.364\times 10^5\)	\(\phantom{-}2.137\times 10^6\)	\(-7.679\times 10^3\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)
\(\phantom{-}0.0\)	\(2.122\times 10^4\)	\(-7.679\times 10^3\)	\(\phantom{-}2.086\times 10^2\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)
\(-4.778\times 10^4\)	\(0.0\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)	\(\phantom{-}2.010\times 10^3\)	\(\phantom{-}9.102\times 10^2\)
\(-1.325\times 10^5\)	\(0.0\)	\(\phantom{-}0.0\)	\(\phantom{-}0.0\)	\(\phantom{-}9.102\times 10^2\)	\(\phantom{-}1.944\times 10^3\)