Enhanced modelling and numerical testing of GFRP composite box beam with adhesive joints
Marian Klasztorny, Daniel Bronisław Nycz, Kamil Paweł Zając
Quarterly No. 4, 2018 pages 217-226
DOI:
keywords: GFRP composite shells, adhesive joints, three-point bending test, numerical modelling and simulation, experimental validation, numerical testing
abstract The subject of the experiment and numerical research is a simply-supported thin-walled box beam with a span of 2.00 m, created by gluing two composite GFRP shells. The beam was subjected to a three-point bending test controlled by displacement in the range from 0 to 300 mm. An experimental bending test, numerical modelling and simulations of this test as well as validation of the modelling and simulation were carried out. In comparison with the authors’ previous publication, adjustments and enhancements include: correction of the GFRP material constants and friction coefficients; testing the key numerical parameters of the geometrically and physically non-linear task, i.e. an iteration step in the implicit algorithm, a convergence tolerance coefficient, FE mesh density; testing the use of the Glue contact option in the MSC.Marc FE code for modelling adhesive joints; quasi-optimization of the ply sequence with the maximum load bearing capacity as the objective function. The parameters and options of numerical modelling and simulation of glued composite shells in the MSC.Marc system were determined, useful for detailed design calculations of composite FRP structures.