Numerical assessment of delamination in fibre metal laminates. (English) Zbl 0965.74066
Summary: We discuss numerical models for delamination in fibre metal laminates. Fibre metal laminates form a class of materials in which homogeneous aluminium sheets are combined with fibre reinforced prepreg layers. Intensive experimental analyses have been carried out to assess the possible application of new design methods which make use of the layered structure of fibre metal laminates. To support the experimental analyses, numerical models have been developed to describe delamination in fibre metal laminates. To achieve this goal, we introduce a special continuum element and the corresponding interface elements. Loading functions are derived to account for delamination. The loading functions are either applied for the continuum or for the interface element. Using this methodology, the influence of delamination on spliced fibre metal laminates has been studied numerically, and has been compared to experimental results.
MSC:
| 74S05 | Finite element methods applied to problems in solid mechanics |
| 74E30 | Composite and mixture properties |
| 74-05 | Experimental work for problems pertaining to mechanics of deformable solids |
| 74R99 | Fracture and damage |
Keywords:
discrete delamination model; continuum-based delamination model; spliced metal laminates; fibre metal laminates; fibre reinforced prepreg layers; interface elements; loading functions; interface elementReferences:
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