138
7 Virtual testing approach for sandwich panel joints
strength due to stronger face sheets appears to be limited since the strength increase
from the 102 to the 103 lay-up is smaller if compared to just adding one layer to the
reference lay-up (101 to 102).
Figure 107 Simulation results for face sheet parameter study
Core
Analogous to the face sheets, two additional core types are investigated in order to
quantify the core impact on the insert pull-out strength. All investigated core types are
summarized in Table 29, while the nomenclature of the cores is based on the Airbus
specification ABS 5035 [Air14]. The ABS 5035-A4 core is used in the reference test.
Hence, the material model of the cell walls for the detailed core model has been calibrated in section 4.1 based on experimental results. The additionally considered core
types of the parameter study have the same cell size as the reference core (3.2 mm).
They differ in the density, which is achieved by applying different Nomex paper thick-
7 Virtual testing approach for sandwich panel joints
strength due to stronger face sheets appears to be limited since the strength increase
from the 102 to the 103 lay-up is smaller if compared to just adding one layer to the
reference lay-up (101 to 102).
Figure 107 Simulation results for face sheet parameter study
Core
Analogous to the face sheets, two additional core types are investigated in order to
quantify the core impact on the insert pull-out strength. All investigated core types are
summarized in Table 29, while the nomenclature of the cores is based on the Airbus
specification ABS 5035 [Air14]. The ABS 5035-A4 core is used in the reference test.
Hence, the material model of the cell walls for the detailed core model has been calibrated in section 4.1 based on experimental results. The additionally considered core
types of the parameter study have the same cell size as the reference core (3.2 mm).
They differ in the density, which is achieved by applying different Nomex paper thick-