Research progress of dynamic load measurement technology for materials used in vehicle

To achieve energy saving and emission reduction targets, the automotive industry has been focusing on vehicle light-weighting. Wide applications of novel materials for body-in-white (BIW) structures effectively reduce net weight of car body, and it also poses great challenges to crash safety of vehicles. The vehicle materials under typical crash scenarios cover a broad strain rate range from quasi-static to 1 000 s^–1. Ringing effect in force signals under intermediate strain rate loading causes corruption of actual force responses of the materials used in BIW. This paper presents novel force measurement methods and applications namely oscillation-free compact force sensor, medium-high strain rate bar type force sensor and single-model method force sensor.