... that sand-type 3D printing materials demonstrate comparable properties to natural rocks, including brittle characteristics, surface roughness, microstructural features and crack propagation patterns. Research limitations/implications While the research establishes the viability of sand-type 3D printing...

... and deformation behaviours, and fatigue crack propagation analysis. Findings According to the test results, the contribution of laser sintered surface structures to relevant mechanical properties can be neglected. Under dynamic loading conditions, laser sintered specimens achieved a longer lifetime but showed...