a Corresponding author:[email protected] Ductile failure analysis of high strength steel in hot forming based on micromechanical damage model Liang Ying 1, Wenquan Liu2, Dantong Wang1 and Ping Hu1,a 1 School of Automotive Engineering, Dalian
Effect of Loading Rate on Fracture A. Venkert Fracture experiments in a high-strength ductile steel (2.3Ni-1.3Cr-0.17C) were conducted the effects of microstructure on ductile fracture mechanisms and ductile failure can be found in
Jun 22, 2018 · The effect of structural characteristics (ferrite, ferrite + pearlite, sorbite) including morphology, size and distribution of nonmetallic inclusions of different morphology, sizes and distribution, on ductilebrittle transition in structural steels is considered. It is shown that an elementary ductile microcrack is initiated by particles of critical size.
Failure Modes:A Closer Look at Ductile and Brittle Harder, stronger metals tend to be more brittle. The relationship between strength and hardness is a good way to predict behavior. Mild steel (AISI 1020) is soft and ductile; bearing steel, on the other hand, is strong but very brittle. The relationship between strength and hardness of steel is shown in Figure 1. Figure 1:Steel Hardness vs
Fracture in Steel - Brittle fracture in ductile material Jun 13, 2014 · Fracture in Steel Brittle fracture in ductile material. Brittle failure is the brisk propagation of cracks through a material. This typically occurs so quickly that no plastic deformation takes place before fracture occurs. In structure failures, brittle failure usually causes a failure in structural integrity.
AbstractIntroductionMaterials and MethodsResults and DiscussionConclusionAcknowledgmentsThe shear behavior of six high ductile fiber reinforced concrete (HDC) beams is studied to investigate the influence of shear-span ratio and HDC mechanical property on the improvement of the shear failure mode and shear capacity of short beams. Four steel-reinforced high ductile concrete beams (SHDC) beams with different shear span ratios are tested under concentrated load at midspan. To study the effect of stirrups and steel on the shear capacity of short beams, two additional specimens without steel but one C. Ruggieri Numerical Investigation of Constraint Effects capability to predict the strong effects of constraint on measured stress-strain response for tensile specimens. Keywords:Ductile fracture, tensile specimen, constraint, computational cell, finite elements Introduction Failure assessments of damaged steel components subjected to large scale straining and plastic deformation remain a key issue in
The Effects of Sulfide Inclusions on Mechanical Properties Feb 20, 2015 · The effects of elongated sulfides as a function of total content and shape were shown in AISI 4137 steel with 260 ksi UTS (Table 9). There was only a moderate effect of sulfur on longitudinal impact strength . The large effect of inclusion shape can be seen for the globular MnS in Table 9, reflecting the changes in projected length, P.
The Influence of the Lode Parameter on Ductile Failure Jan 01, 2011 · The former material is a hot rolled medium strength steel and the latter material is a quenched and annealed high strength steel. which assumes that ductile material failure occurs when the deformation becomes highly non-uniform and localizes into a thin band. Clausing D. P., 1970. Effect of plastic strain state on ductility and
Oct 05, 2020 · The Lode sensitivity was quantified, and the results showed that the L S increases with increase in the ultimate strength of the steel grade. The results were incorporated to enhance the original ASME local failure criterion by accounting for T, L, and L S to accurately assess ductile failure in high-strength steels. The application of the enhanced failure locus in a design analysis of a pressure vessel