An investigation into the secondary stage creep behaviour of ABS thin-walled additive manufactured specimens

Advances in additive manufacturing (AM) technologies have resulted in a much wider choice of materials and recently improved quality of AM components with fewer rejected parts. Although research into the material properties of additive manufacturing materials is well established, there are still challenges in the production of some complex geometries and thin-walled parts. Uncertainty in the behaviour of these parts requires testing, which includes time-dependent behaviour and at elevated temperatures. Creep testing provides a way of observing this behaviour of thin-walled specimens. This study looks at a comparison of ABS test specimens using two different types of in-fill and various in-fill densities. Whilst there are many variations of in-fill and build options which are not included, this study provides a pilot investigation which can be used for more extensive testing for other AM materials and shapes.