Analyzing the effect of carbon fiber reinforced polymer on the crashworthiness of aluminum square hollow beam for crash box application

14th International Conference on Science, Engineering and Technology

自然科学;工业技术

Raman, R.^1 ; Jayanth, K.^1 ; Sarkar, I.^1 ; Ravi, K.^1

School of Mechanical Engineering, VIT University, Vellore, Tamil Nadu

632014, India^1

关键词: Crush force efficiency;    Effect of carbons;    Hollow beams;    Hybrid beam;    Lay-up sequences;    Pure aluminum;    Specific energy absorption;    Vehicle components;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/263/6/062068/pdf
DOI  :  10.1088/1757-899X/263/6/062068

来源: IOP

【 摘 要 】

Crashworthiness of a material is a measure of its ability to absorb energy during a crash. A well-designed crash box is instrumental in protecting the costly vehicle components. A square, hollow, hybrid beam of aluminum/CFRP was subjected to dynamic axial load to analyze the effect of five different lay-up sequences on its crashworthiness. The beam was placed between two plates. Boundary conditions were imposed on them to simulate a frontal body crash test model. Modeling and dynamic analysis of composite structures was done on ABAQUS. Different orientation of carbon fibers varies the crashworthiness of the hybrid beam. Addition of CFRP layer showed clear improvement in specific energy absorption and crush force efficiency compared to pure aluminum beam. Two layers of CFRP oriented at 90° on Aluminum showed 52% increase in CFE.