Fracture characteristics of advanced high strength steels during hole expansion test
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Fracture"
DOI: 10.1007/s10704-020-00458-y
Abstract: This study was performed to estimate the stretch-flangeability of two important advanced high strength steel (AHSS) sheets, i.e. DP980 and TRIP1180, using hole-expansion test (HET). Moreover, the effect of hole edge-quality on stretch-flangeability of both… read more here.
Keywords: high strength; fracture; hole expansion; advanced high ... See more keywords
Modeling and Analysis of Variable Parameters for Compound Hole Expansion of Fit Bushing
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Materials Engineering and Performance"
DOI: 10.1007/s11665-021-06009-3
Abstract: A three-dimensional finite-element model was generated of the hole expansion of a fit bushing for an aerospace aluminum alloy lug with a hole, and the effect of the compound hole expansion treatment in which the… read more here.
Keywords: compound hole; expansion fit; expansion; fit bushing ... See more keywords
Effect of anisotropic evolution on circular and oval hole expansion behavior of high-strength steel sheets
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2017.10.038
Abstract: Abstract The circular and oval hole expansion behaviors of JSH440W and JSH590R high-strength steel sheets were investigated based on experiments and finite element (FE) simulations using three types of anisotropic yield functions: Hill48-r, Yld2000-2d, and… read more here.
Keywords: high strength; circular oval; evolution; oval hole ... See more keywords
Numerical modeling for accurate prediction of strain localization in hole expansion of a steel sheet
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Solids and Structures"
DOI: 10.1016/j.ijsolstr.2018.08.005
Abstract: Abstract The hole expansion of a low carbon steel sheet shows an interesting feature that localized thinning and subsequent crack initiation are observed inside the specimen, and not at the hole edge as is typically… read more here.
Keywords: steel sheet; prediction; strain; hole expansion ... See more keywords
Effect of austenite stability on the hole expansion behavior of δ-TRIP steels
Sign Up to like & getrecommendations! Published in 2020 at "Materials today communications"
DOI: 10.1016/j.mtcomm.2020.101034
Abstract: Abstract This paper deals with the assessment of the stability of retained austenite in δ-TRIP steels at two different isothermal holding time durations. Longer holding time leads to an improvement in austenite stability by greater… read more here.
Keywords: hole expansion; stability; trip steels; austenite stability ... See more keywords
A critical review on hole expansion ratio
Sign Up to like & getrecommendations! Published in 2020 at "Materialia"
DOI: 10.1016/j.mtla.2019.100566
Abstract: Abstract Materials resistance to edge fracture in intricate shape forming is commonly quantified by hole expansion ratio (HER). Hole expansion test is normally used to evaluate HER. To date, the governing factors of HER have… read more here.
Keywords: review hole; expansion; expansion ratio; hole expansion ... See more keywords
Experimental investigation of hole expansion ratio for automotive-grade steels
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture"
DOI: 10.1177/09544054221121892
Abstract: Hole expansion ratio (HER) is widely used to quantify the stretch-flangeability of sheet metal. HER is determined from the maximum limit of successful expansion of a central hole by a conical punch. The central hole… read more here.
Keywords: strength; hole expansion; hole; expansion ratio ... See more keywords
Integrated Machine Vision System for Evaluating Hole Expansion Ratio of Advanced High-Strength Steels
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15020553
Abstract: In this paper, we propose a new method to estimate the hole expansion ratio (HER) using an integrated analysis system. To precisely measure the HER, three kinds of analysis methods (computer vision, punch load, and… read more here.
Keywords: system; hole expansion; analysis system; analysis ... See more keywords