Static Four-Point Bending Tester for Bone Plates

The Static Four-Point Bending Tester for Bone Plates is designed to evaluate the bending strength and bending stiffness of bone plates used in orthopedic fracture fixation. By applying a controlled four-point bending load, the tester measures the mechanical response of a bone plate under bending conditions, providing quantitative data for assessing its load-bearing capacity and resistance to deformation.

The testing process records the applied load and corresponding deformation of the specimen. These measurements can be used to determine bending strength and stiffness according to the selected test method. The resulting data support orthopedic implant research, product design evaluation, and manufacturing quality control.

The tester is intended for laboratory mechanical testing of bone plates. Test fixtures, loading conditions, and specimen preparation should be selected according to the plate design and applicable standard.

Application

(1) Metallic bone plates used for orthopedic fracture fixation.

(2) Straight bone plates and suitable plates with slight initial curvature.

(3) Bending strength evaluation of bone plates.

(4) Bending stiffness and deformation analysis.

(5) Mechanical performance comparison of different bone plate designs and materials.

(6) Orthopedic implant research, product development, and manufacturing quality control.

Standards

• ISO 9585:1990 — Implants for surgery — Determination of bending strength and stiffness of bone plates

• ASTM F382-24 — Standard Specification and Test Method for Metallic Bone Plates

Features

(1) Four-point bending testing for evaluating the mechanical properties of bone plates.

(2) Measurement of bending load and specimen deformation.

(3) Evaluation of bending strength and bending stiffness.

(4) Support for mechanical comparison of different bone plate designs.

(5) Quantitative data for product development and quality control.

(6) Test configuration adaptable to the selected plate geometry and applicable method.

(7) Supports laboratory evaluation of orthopedic implant mechanical performance.