Grain scale modeling of the bendability of AA6xxx Al alloy sheet

Heat-Treatable Aluminum Alloys: Three-Point Bending

“…Nakanishi et al (47) reported that the poorest bendability was found in the peak aged temper, while both the underaged and overaged tempers showed better bending behavior. This is in good agreement with the study by Mattei (32). Similarly, Westermann et al (8) reported better bendability for the overaged materials compared to the underaged material for both as-cast, as-extruded, and recrystallized materials.…”

“…In the finite element simulations presented by Saai et al (12) and Mattei et al (32), it is shown that a larger grain size in a material with equi-axed grains leads to an earlier formation of macro shear bands and an increase in surface waviness. In the work by Lievers et al (9) the influence of iron content on the bendability has been investigated.…”

Aluminum Sheet Metal Damage Mechanisms Application to Trimming and Hemming

“…Mattei et al [61] developed a finite element microstructure based model of the standard bending test to predict strain localization. The sheet metal is modeled as a grain aggregate, each grain with its own flow stress.…”

A Fast Identification Method of Yield Strength of Materials Based on Bending Experimental Data

“…Bending deformation mode is common in sheet metal forming [29], and is able to meet the above requirements. Some scholars have used bending deformation to test bendability [30][31][32]. However, how material parameters can be acquired based on the bending test is a problem worthy of more discussion.…”