Perpustakaan Digital ITB

As force that is given to the bone exceeds its strength, fracture may happen into the bone. Traumatic incidents or medical conditions can also lead to fracture. One of the ideal methods for curing a bone fracture is by replacing it. However, bone's complex composition, including water, hydroxyapatite, collage, proteoglycans, and non-collagenous proteins, contributes to its unique properties. Therefore, there are limitations, such as mismatches, that complicate the healing process. Nowadays, studies have shown that 3D printing is one method to create personalized bone grafts that helps increase production and has a significant impact on patient outcomes and surgical procedures. Mechanical properties will be crucial to be evaluated to see the performance of the 3D-printed bone implants. Bending testing is used in finding the mechanical properties, including flexibility, strength, and behavior, under bending loads which is close to the realistic load that the human body faces. However, since the wanted specimen for the experiment is so small as to mimic the realistic dimension of the bone of the experimental rabbit, a mini 3-point bending machine will be designed to fulfil these limitations along with resulting in accurate and reliable testing. The development and final design of a mini 3-point bending machine specifically tailored for small specimens are presented.