Explicit FE-formulation of interphase elements for adhesive joints

• The potential of adhesive bonding to improve the crashworthiness of cars is attracting the automotive industry. Large-scale simulations are time consuming when using the very small finite elements needed to model adhesive joints using conventional techniques. In the present work, a 2D-interphase element formulation is developed and implemented in an explicit FE-code. A simplified joint serves as a test example to compare the interphase element with a straightforward continuum approach. A comparison shows the time-saving potential of the present formulation as compared to the conventional approach. Moreover, the interphase element formulation shows fast convergence and computer efficiency.

Nyckelord

Adhesive joint

Dynamic fracture

Execution time

Explicit FE

Interphase element

Adhesive joints

Crashworthiness

Finite element method

Adhesive bonding

Computer efficiency

Conventional approach

Conventional techniques

Element formulation

Fast convergence

Finite element (FE)

Large-scale simulations

Time consuming

Automotive industry

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)