The displacement-controlled load introduction leads to the normal
force N0ðIÞ
xx in the middle plane of segment I in positive x1-direction
(see Fig. 4, middle). It can be directly deduced that this normal
force will transfer itself into segment II due to equilibrium requirements.
Note that the normal force N0ðIIÞ
xx does not act in the middle
plane of segment II, but rather has an offset d ¼ h1
2 (see Fig. 4).
Further, it has been assumed that the load introduction in the analysis
model is such that the section of segment I remains plane and
perpendicular to the x-direction under any given tensile load. In
order to enforce this requirement, a bending moment M0ðIÞ
xx is introduced
at the free end of segment I that runs counter to the rotation
of the section of segment I. This bending moment is also present in
segment II, denoted as M0ðIIÞ
xx . The resultant analysis model is shown
in Fig. 4, lower part. From equilibrium at the junction between segments
I and II it can be deduced that N0ðIÞ
xx ¼ N0ðIIÞ
xx and M0ðIÞ
xx ¼ M0ðIIÞ
xx
hold.
The displacement-controlled load introduction leads to the normal
force N0ðIÞ
xx in the middle plane of segment I in positive x1-direction
(see Fig. 4, middle). It can be directly deduced that this normal
force will transfer itself into segment II due to equilibrium requirements.
Note that the normal force N0ðIIÞ
xx does not act in the middle
plane of segment II, but rather has an offset d ¼ h1
2 (see Fig. 4).
Further, it has been assumed that the load introduction in the analysis
model is such that the section of segment I remains plane and
perpendicular to the x-direction under any given tensile load. In
order to enforce this requirement, a bending moment M0ðIÞ
xx is introduced
at the free end of segment I that runs counter to the rotation
of the section of segment I. This bending moment is also present in
segment II, denoted as M0ðIIÞ
xx . The resultant analysis model is shown
in Fig. 4, lower part. From equilibrium at the junction between segments
I and II it can be deduced that N0ðIÞ
xx ¼ N0ðIIÞ
xx and M0ðIÞ
xx ¼ M0ðIIÞ
xx
hold.
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