Unequal Faces Effect on Fracture of Composite Sandwich Beam with Flexible Core
Source abstract
Abstract
Sandwich panel higher order theory (SPHOT) which estimates core compression and face stresses is used to predict damage modes of a sandwich beam with unequal faces. It is shown that sandwich panel classical theory (SPCT) which is based on investigating of behavior of the structure with considering core shear stress in simply supported boundary conditions and neglecting shear modulus of core can not predict the failure load in the case of unequal faces when core yielding is happened. Comparing the results obtained by SPHOT, SPCT and available experimental ones shows that the higher order theory is a suitable approach to predict failure loads in this case for different damage modes.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Composite Structure Analysis and Optimization · Cellular and Composite Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (16)
Show source-provided references
1. Plantema, F.J.: Sandwich construction. Wiley, New York (1966)
2. Allen, H.G.: Analysis and design of structural sandwich panels. Pergamon, London (1969)
3. Steeves, C.A., Fleck, N.A.: Material selection in sandwich beam construction. Scripta. Materialia. 50, 1335–1339 (2004)10.1016/j.scriptamat.2004.02.015 ↗
4. Abot, J.L., Daniel, I.M., Gdoutos, E.E.: Contact law for composite sandwich beams. J. Sandw. Struct. Mater. 4, 157 (2002)10.1177/1099636202004002705 ↗
5. Zenkert, D., Shipsha, A., Persson, K.: Static indentation and unloading response of sandwich beams. Composites: Part B. 35, 511–522 (2004)10.1016/j.compositesb.2003.09.006 ↗
6. Koissin, V., Shipsha, A., Rizov, V.: The inelastic quasi-static response of sandwich structures to local loading. Compos. Struct. 64, 129–138 (2004)10.1016/S0263-8223(03)00221-6 ↗
7. Koissin, V., Skvortsov, V., Shipsha, A.: Stability of the face layer of sandwich beams with sub-interface damage in the foam core. Compos. Struct. 78, 507–518 (2007)10.1016/j.compstruct.2005.11.012 ↗
8. Tagarielli, V.L., Fleck, N.A., Deshpande, V.S.: Collapse of clamped and simply supported composite sandwich beams in three-point bending. Composites: Part B 35, 523–534 (2004)10.1016/j.compositesb.2003.07.001 ↗
9. Seong, T., Lee, C.S., Lee, D.G.: Failure modes of foam core sandwich beams under static and impact loads. J. Compos. Mater. 38, 1639 (2004)10.1177/0021998304044760 ↗
10. Kim, J., Swanson, S.R.: Effect of unequal face thickness on load resistance of sandwich beams. J. Compos. Struct. 52, 365–373 (2001)10.1016/S0263-8223(01)00027-7 ↗
11. Swanson, S.R.: An examination of a higher order theory for sandwich beams. J. Compos. Struct. 44, 169–177 (1999)10.1016/S0263-8223(98)00130-5 ↗
12. Frostig, Y., Brauch, M.: Bending of sandwich beams with transversely flexible core. J. AIAA. 28(11), 523–531 (1990)10.2514/3.10423 ↗
13. Frostig, Y.: Classical and high-order computational models in the analysis of modern sandwich panels. Composites: Part B. 34, 83–100 (2003)10.1016/S1359-8368(02)00073-2 ↗
14. Sokolinsky, V.S., Frostig, Y., Nutta, S.R.: Special behavior of unidirectional sandwich panels with transversely flexible core under static loading. Int. J. Non-Linear Mech. 37, 869–895 (2002)10.1016/S0020-7462(01)00103-2 ↗
15. Sadighi, M., Saadati, M.: Indentation in light weight composite sandwich beams. Proc. IMechE, Part G: J. Aerosp. Eng. 223, (2009). doi: 10.1243/09544100JAERO41610.1243/09544100JAERO416 ↗
16. Jones, R.M.: Mechanics of composites materials. Tylor & Francies Inc, Philadelphia (1999)