# Slide 1: Title * Title: Crashworthiness Performance Evaluation of Automotive Bumper Beams: A Comparative Study * Content: Evaluation of Steel, Aluminium, and Composite Materials via LS-DYNA Simulation * Presenter: [Your Name / Institution] # Slide 2: Introduction & Research Background * Bumper beams are critical automotive safety components. * Main function: Absorb impact energy and minimize structural damage during collisions. * Objective: Evaluate and balance weight, energy absorption efficiency, and transmitted force. # Slide 3: Methodology - Simulation Setup * Method: Non-linear dynamic finite element analysis using LS-DYNA simulation. * Approach: Mass-equivalent design strategy to ensure fair comparison. * Constant Bumper Beam Mass: Kept identical at approximately 8.03 kg for all configurations. # Slide 4: Methodology - Material Configurations * Configuration 1: Steel beam with a material thickness of 2.2 mm. * Configuration 2: Aluminium beam with a material thickness of 6.35 mm. * Configuration 3: Composite beam with a material thickness of 10.16 mm. # Slide 5: Results - Intrusion Resistance * Reference Point Displacement: All three configurations exhibited similar structural responses. * Intrusion Value: Approximately 53 mm at the designated reference point. * Finding: Equivalent mass design results in comparable resistance to intrusion. # Slide 6: Results - Composite Configuration Performance * Energy Absorption (EA): Highest among all materials, absorbing approximately 50.6 kJ. * Peak Force (PCF): Generated an extreme peak force of approximately 2412 kN. * Crashworthiness Force Efficiency (CFE): Achieved the lowest CFE of 13.87%. * Risk: High peak force poses a potential structural risk to rearward vehicle parts. # Slide 7: Results - Metallic Configurations Performance (Steel) * Energy Absorption (EA): Approximately 43.3 kJ. * Peak Force (PCF): Maintained a moderate value of approximately 1140–1150 kN. * Crashworthiness Force Efficiency (CFE): Highest efficiency achieved at 27.87%. # Slide 8: Results - Metallic Configurations Performance (Aluminium) * Energy Absorption (EA): Approximately 40.7 kJ. * Peak Force (PCF): Comparable to steel at approximately 1140–1150 kN. * Crashworthiness Force Efficiency (CFE): Closely followed steel at 27.26%. # Slide 9: Discussion - Material Comparison Matrix * Total Mass: Identical (8.03 kg) for Steel, Aluminium, and Composite. * Intrusion: Identical (~53 mm) for all three materials. * Energy Management: Composite excels in total EA but suffers from extreme force transmission. * Structural Balance: Metallic structures (Steel and Aluminium) exhibit highly favorable and progressive crashworthiness. # Slide 10: Conclusion * Key Insight: Composite absorbs the most energy but transmits dangerous peak forces. * Recommendation: Steel and Aluminium provide a better balance of energy absorption efficiency (CFE) and moderate transmitted force. * Engineering Impact: Findings provide useful guidelines for
# Slide 1: Title * Title: Crashworthiness Performance Evaluation of Automotive Bumper Beams: A Comparative Study * Content: Evaluation of Steel, Aluminium, and Composite Materials via LS-DYNA Simulation * Presenter: [Your Name / Institution] # Slide 2: Introduction & Research Background * Bumper beams are critical automotive safety components. * Main function: Absorb impact energy and minimize structural damage during collisions. * Objective: Evaluate and balance weight, energy absorption efficiency, and transmitted force. # Slide 3: Methodology - Simulation Setup * Method: Non-linear dynamic finite element analysis using LS-DYNA simulation. * Approach: Mass-equivalent design strategy to ensure fair comparison. * Constant Bumper Beam Mass: Kept identical at approximately 8.03 kg for all configurations. # Slide 4: Methodology - Material Configurations * Configuration 1: Steel beam with a material thickness of 2.2 mm. * Configuration 2: Aluminium beam with a material thickness of 6.35 mm. * Configuration 3: Composite beam with a material thickness of 10.16 mm. # Slide 5: Results - Intrusion Resistance * Reference Point Displacement: All three configurations exhibited similar structural responses. * Intrusion Value: Approximately 53 mm at the designated reference point. * Finding: Equivalent mass design results in comparable resistance to intrusion. # Slide 6: Results - Composite Configuration Performance * Energy Absorption (EA): Highest among all materials, absorbing approximately 50.6 kJ. * Peak Force (PCF): Generated an extreme peak force of approximately 2412 kN. * Crashworthiness Force Efficiency (CFE): Achieved the lowest CFE of 13.87%. * Risk: High peak force poses a potential structural risk to rearward vehicle parts. # Slide 7: Results - Metallic Configurations Performance (Steel) * Energy Absorption (EA): Approximately 43.3 kJ. * Peak Force (PCF): Maintained a moderate value of approximately 1140–1150 kN. * Crashworthiness Force Efficiency (CFE): Highest efficiency achieved at 27.87%. # Slide 8: Results - Metallic Configurations Performance (Aluminium) * Energy Absorption (EA): Approximately 40.7 kJ. * Peak Force (PCF): Comparable to steel at approximately 1140–1150 kN. * Crashworthiness Force Efficiency (CFE): Closely followed steel at 27.26%. # Slide 9: Discussion - Material Comparison Matrix * Total Mass: Identical (8.03 kg) for Steel, Aluminium, and Composite. * Intrusion: Identical (~53 mm) for all three materials. * Energy Management: Composite excels in total EA but suffers from extreme force transmission. * Structural Balance: Metallic structures (Steel and Aluminium) exhibit highly favorable and progressive crashworthiness. # Slide 10: Conclusion * Key Insight: Composite absorbs the most energy but transmits dangerous peak forces. * Recommendation: Steel and Aluminium provide a better balance of energy absorption efficiency (CFE) and moderate transmitted force. * Engineering Impact: Findings provide useful guidelines for
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Bài viết trình bày về bối cảnh và thiết kế nghiên cứu, đánh giá dầm căn bằng mô phỏng LS-DYNA với mục tiêu cân bằng khối lượng. Kết quả mô phỏng cho thấy ba cấu hình đạt độ xâm nhập khoảng 53 mm, với composite có EA 50,6 kJ và PCF 2.412 kN. Kết luận chỉ ra rằng thép và nhôm có khả năng chịu lực cao, trong khi composite hấp thụ lực tốt nhưng cần chú ý đến an toàn và hiệu suất.