Hinopoulos, G; Broughton, W R (1999) Evaluation of the T-peel joint using the finite element method. NPL Report. CMMT(A)207

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Abstract

This report evaluates the effect of environmental conditioning and geometric parameters on the performance of the T-peel test. Finite element analyses were performed to establish the effects of these parameters on joint performance and stress distribution within the adhesive layer. The finite element models presented in this report were constructed and solved using the ABAQUS program with FEMGV as the pre-processor. The analyses were based on experimental data generated within the DTI funded ADH and PAJ programmes.
The effect of environmental conditioning on the joint performance was investigated using a sequentially coupled mechanical-diffusion finite element model, which incorporated continuously varying adhesive material properties. The numerical predictions revealed that the stress distributions become more uniform along the adhesive layer when the adhesive contains increased amounts of moisture. Peel stresses at the edge of the adhesive fillet decrease with increasing moisture content.
Parametric studies on the specimen geometry revealed that stress distributions are sensitive to adherend material properties, adherend thickness and flange radius, the flange radius is the least significant. In general, stresses were reduced when changes in the T-peel geometry resulted in smaller joint displacements for the same load.

Item Type:	Report/Guide (NPL Report)
NPL Report No.:	CMMT(A)207
Subjects:	Advanced Materials Advanced Materials > Materials Modelling
Last Modified:	02 Feb 2018 13:18
URI:	http://eprintspublications.npl.co.uk/id/eprint/1267

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