Static tensile force refers to a physical force, which usually refers to the application of tensile stress on an object to deform it without being affected by vibration or impact.In engineering and physics, static tensile force is an important indicator to evaluate the performance and stability of objects under static loads. In the field of construction and engineering, static tensile testing is used to determine the strength, toughness and durability of materials such as steel bars, steel wire ropes, etc. In the laboratory, the actual use of objects can be simulated by static loading and unloading. In biology, static tensile force also plays an important role. For example, the skeletal system can withstand a lot of static tensile force, and soft tissues such as muscles and ligaments can also maintain their structure and function under the action of static tensile force. In a word, static tensile force is a static physical force used to evaluate the performance and stability of objects under static load. It plays an important role in many fields such as engineering, physics and biology.