Continuous Fiber Distribution problems from the FEBio test suite. These files are run through FEBio after each compilation to ensure that it is working as intended.
Owner: FEBio Team
contiuous fiber distribution
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cf01.feb
A cube consisting of a single element is modeled with a continuous fiber distribution with a 3D vonMises distribution density. The fiber dispersion parameter b is set to a large value approximating infinity, so that the distribution is nearly equivalent to a single fiber bundle oriented along the zdirection. An isotropic strain is prescribed on the cube. For these choices, the resulting stress response along z may be compared to an analytical solution.
The solution for the zstress as b goes to infinity is 190.016. This solution can be obtained by replacing the continuous fiber distribution material with a fiberexppow material having identical fiber properties.
contiuous fiber distribution
cf02.feb
A cube consisting of a single element is modeled with a continuous fiber distribution with a 3D vonMises distribution density. The fiber dispersion parameter b is set to a large value approximating infinity, so that the distribution is nearly equivalent to a single fiber bundle oriented along the zdirection. An isotropic strain is prescribed on the cube. For these choices, the resulting stress response along z may be compared to an analytical solution.
The solution for the zstress as b goes to infinity is 190.016. This solution can be obtained by replacing the continuous fiber distribution material with a fiberexppow material having identical fiber properties. This problem differs from cf01.feb only by the choice of fiber integration scheme.
contiuous fiber distribution
cf03.feb
A rectangular strip consisting of hex20 elements is modeled with a continuous fiber distribution with a 3D vonMises distribution density. A single fiber bundle is oriented along the xdirection. The left and right ends of the strip are interfaced with rigid bodies. The left end is fixed and a displacement is prescribed on the right end, along x.
The fiberexponentialpowerlaw properties are selected to produce a highly nonlinear response for the reaction force.
contiuous fiber distribution
cf04.feb
A rectangular strip consisting of hex20 elements is modeled with two continuous fiber distribution, each with a 3D vonMises distribution density. The two fiber bundles are oriented at +45 deg. and 45 deg. relative to the xdirection. The left and right ends of the strip are interfaced with rigid bodies. The left end is fixed and a displacement is prescribed on the right end, along x.
The fiberexponentialpowerlaw properties are selected to produce a highly nonlinear response for the reaction force. Compare to cf03.feb which uses a single fiber bundle aligned along x.
contiuous fiber distribution
cf05.feb
A rectangular strip consisting of hex20 elements is modeled with two continuous fiber distribution, each with a 2D vonMises distribution density. The two fiber bundles lie in the xy plane and are oriented at +45 deg. and 45 deg. relative to the xdirection. The left and right ends of the strip are interfaced with rigid bodies. The left end is fixed and a displacement is prescribed on the right end, along x.
The fiberexponentialpowerlaw properties are selected to produce a highly nonlinear response for the reaction force. Compare to cf04.feb which uses 3D vonMises distribution densities.
contiuous fiber distribution
cf06.feb
A rectangular strip consisting of hex20 elements is modeled with two continuous fiber distribution, each with a 3D ellipsoidal distribution density. The two fiber bundles are oriented at +45 deg. and 45 deg. relative to the xdirection. The left and right ends of the strip are interfaced with rigid bodies. The left end is fixed and a displacement is prescribed on the right end, along x.
The fiberexponentialpowerlaw properties are selected to produce a highly nonlinear response for the reaction force.
contiuous fiber distribution
cf07.feb
A rectangular strip consisting of hex20 elements is modeled with two continuous fiber distribution, each with a 2D elliptical distribution density. The two fiber bundles lie in the xy plane and are oriented at +45 deg. and 45 deg. relative to the xdirection. The left and right ends of the strip are interfaced with rigid bodies. The left end is fixed and a displacement is prescribed on the right end, along x.
The fiberexponentialpowerlaw properties are selected to produce a highly nonlinear response for the reaction force. Compare to cf06.feb which uses 3D ellipsoidal distribution densities.
contiuous fiber distribution
cf08.feb
A rectangular strip consisting of hex20 elements is modeled with a continuous fiber distribution with a 3D vonMises distribution density. A single fiber bundle is oriented along the xdirection. The left and right ends of the strip are interfaced with rigid bodies. The left end is fixed and a displacement is prescribed on the right end, along x.
The fiberexponentialpowerlaw properties are selected to produce a highly nonlinear response for the reaction force.
contiuous fiber distribution
cf09.feb
A rectangular strip consisting of hex20 elements is modeled with two continuous fiber distribution, each with a 2D elliptical distribution density. The two fiber bundles lie in the xy plane and are oriented at +45 deg. and 45 deg. relative to the xdirection. The left and right ends of the strip are interfaced with rigid bodies. The left end is fixed and a displacement is prescribed on the right end, along x.
The fiberexponentialpowerlaw properties are selected to produce a highly nonlinear response for the reaction force. Compare to cf06.feb which uses 3D ellipsoidal distribution densities.
contiuous fiber distribution
cf10.feb
A rectangular strip consisting of hex20 elements is modeled with two continuous fiber distribution, each with a 2D elliptical distribution density. The two fiber bundles lie in the xy plane and are oriented at +45 deg. and 45 deg. relative to the xdirection. The left and right ends of the strip are interfaced with rigid bodies. The left end is fixed and a displacement is prescribed on the right end, along x.
The fiberexponentialpowerlaw properties are selected to produce a highly nonlinear response for the reaction force. Compare to cf06.feb which uses 3D ellipsoidal distribution densities.
This version differs from cf09 by the method of allocating materials within solid mixtures in elastic and bond materials of the reactive vicoelastic material. cf10 is computationally more efficient than cf09.
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