Influence of Framework Material on Stress, Fatigue, and Stability of "All-on-Four" System Components-Biomechanical

Dijana Popovic Grubac1, Djordje Bozovic1, Jelena Lecic1

  • 1Department of Dentistry, Faculty of Medicine Foca, University of East Sarajevo, 73300 Foca, Bosnia and Herzegovina.

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Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
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Consider a structure made of a boom and a rod designed to support a load. These two components are connected by a pin and stabilized by brackets and pins. The boom and the rod are detached from their supports to assess the different stresses imposed on this structure, and a free-body diagram is drawn. Then, all the forces applied, including the load acting on the structure, are identified. The reaction forces exerted on both the boom and the rod are computed using the equilibrium equations.
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