Pereira, R.; Peixinho, N.; Costa, S.L. A Review of Sheet Metal Forming Evaluation of Advanced High-Strength Steels (AHSS). Metals2024, 14, 394.
Pereira, R.; Peixinho, N.; Costa, S.L. A Review of Sheet Metal Forming Evaluation of Advanced High-Strength Steels (AHSS). Metals 2024, 14, 394.
Pereira, R.; Peixinho, N.; Costa, S.L. A Review of Sheet Metal Forming Evaluation of Advanced High-Strength Steels (AHSS). Metals2024, 14, 394.
Pereira, R.; Peixinho, N.; Costa, S.L. A Review of Sheet Metal Forming Evaluation of Advanced High-Strength Steels (AHSS). Metals 2024, 14, 394.
Abstract
This paper presents a review on numerical and experimental methods to predict fracture of ad-vanced high strength steels (AHSS). AHSS are widely processed through sheet metal forming processes. Although being an excellent choice when lightweight, high strength and ductility are critical factors, their multi-phase microstructure accentuates forming challenges. To accurately model forming behavior, necking based failure criteria as well as direct fracture models require improvements. As a necking based failure model, the conventional forming limit diagram/curve (FLD/FLC) presents limitations such as in estimating direct fracture (surface cracks, edge cracks, shear cracks), as well as deformation histories under nonlinear strain paths. Thus, significant re-search efforts are being made towards the needs of advanced fracture constitutive models capa-ble of predicting fracture scenarios without necking, more frequently observed in the realm of AHSS. Scientific community research is divided into several directions aiming at improving the forming and fracture behavior accuracy of parts subjected to sheet metal forming operations. In this review paper, a comprehensive overview on ductile fracture modeling is presented. Firstly, the FLD/FLC limitations modeling fracture behavior in sheet metal forming operations are stud-ied. Followed by the recent trends in constitutive material modeling. Afterwards, material char-acterization methods advancements to cover a broad range of stress states are comprised. Final-ly, damage and fracture models predicting failure in AHSS are investigated. This review paper supplies relevant information on the current issues the sheet metal forming community is chal-lenged with due to the trend towards AHSS employment in the automotive industry.
Keywords
AHSS; Failure models; FLD/FLC limitations
Subject
Engineering, Mechanical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
