| AID | Analysis Name |
|---|---|
| 090 | Wrinkling, Eqn 1, Isotropic or Honeycomb Core, X, Y & Interaction |
| 091 | Wrinkling, Eqn 2, Honeycomb or RCS Core, X, Y & Interaction |
| 092 | Wrinkling, Vinson, Honeycomb, X, Y & Interaction |
Sandwich structures with thin facesheets and lightweight cores are prone to a type of local failure known as facesheet wrinkling. The term wrinkling refers to local, short wavelength buckling phenomenon of the facesheet with mode shapes having wavelengths up to the thickness of the core. The small buckling wavelength of the wrinkling mode results in the allowable load being insensitive to structural boundary conditions and curvature. Sandwich structures exhibit little or no post-wrinkling load carrying capability, therefore failure of these structures by wrinkling is typically catastrophic. As a consequence, accurate prediction of wrinkling is essential to quantifying structural integrity of sandwich structures.
Wrinkling coefficients k1and k2 are specified in the Options tab of the Sizing form. See Options Tab.
See the HME document for more information.
See the HVV document for more information.
