Low velocity impact of hybrid stacked steel plates

摘要: Abstract Designing and manufacturing high strength, low weight parts with enhanced impact resistance is highly sought after in the transportation industry. The most common methods to improve strength-to-weight ratios of targets a composite material composition or favorable geometric design. An alternative method performance functionally gradient mechanical properties single by hybrid additive stacking. In this study, velocity tests were conducted on stacked 1070 steel plates where individual layers subjected shot peening (SP) grade properties. Hybrid stacking refers secondarily processing preferential within build volume cold working achieve compressive residual stresses localized work hardening. Incorporating SP layer intervals during radically different approach increase ratio metals. Cold achieves without need for multi-material manufacturing. objective was investigate strength energy absorption from peened non-shot form target. Identifying sequences provides insight how design structure that incorporates surface treatment (e.g., peening) outperform conventional targets. Results showed improved incorporating dependent sequence. improvement attributed induced increased friction incorporated predefined layers.