Results 21 to 30 of about 3,600 (293)

Failure Modeling for QP980 Steel by a Shear Ductile Fracture Criterion

open access: yesMetals, 2022
The wide application of advanced high strength steels with high specific strength in the automotive industry can significantly reduce energy consumption and contribute to carbon neutrality. Accurate prediction of the ductile fracture behavior of advanced
Songchen Wang   +5 more
doaj   +1 more source

Failure prediction for advanced crashworthiness of transportation vehicles. [PDF]

open access: yes, 2004
During the past two decades explicit finite element crashworthiness codes have become an indispensable tool for the design of crash and passenger safety systems.
Lauro, F   +13 more
core   +2 more sources

Study on Dependence of Ductile Fracture Progress on Grain-Boundary Due to FCC Tri-Crystal Model [PDF]

open access: yes, 2013
Based on shock wave theory one of the authors derived the criterion of the micro-crack nucleation, namely the micro-crack nucleation is caused by the jump of the velocity along the intersected crossing line between two different stationary discontinuity ...
後藤, 謙明   +4 more
core   +2 more sources

CC(T) Specimen Load-Bearing Capacity Related to Yield Strength and Upper-Shelf Charpy-V Energy

open access: yesApplied Mechanics, 2021
The load-bearing capacity of a CC(T) specimen (Center-Cracked Tension) in the ductile fracture regime is usually controlled by plastic collapse. If the material’s tearing resistance is sufficiently low, the load-bearing capacity can drop below the ...
Kim Wallin
doaj   +1 more source

Experimental and numerical analysis of micromechanical damage in the punching process for High-Strength Low-Alloy steels [PDF]

open access: yes, 2014
Sequential sheet metal forming processes can result in the accumulation of work hardening and damage effects in the workpiece material. The mechanical strength of the final component depends on the “evolution” of these two characteristics in the ...
GERMAIN, Guénaël   +3 more
core   +2 more sources

Evaluation of ductile crack initiation limit using strain hardening exponent

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Evaluation of ductile crack initiation limit without depending on materials was investigated. Ductile crack initiation behaviors were experimentally and analytically comprehended using Al alloy as non-ferrous metal in addition to two different steels. It
Takehisa YAMADA   +2 more
doaj   +1 more source

A Criterion for Ductile Fracture in Mild Steels

open access: yesJournal of the Society of Naval Architects of Japan, 1973
A criterion of the ductile fracture of mild steels is investigated from the view point of mathematical theory of plasticity.Round bar test specimens are brought to fracture, some under simple tension, some others under simple twist and the rest prestrained under tension and then twisted.
Hara, Yoichi   +2 more
openaire   +2 more sources

Fracture Failure Numerical Simulation of Lug Joint Structure

open access: yesHangkong gongcheng jinzhan, 2019
Fracture of metallic materials is a difficult problem in engineering calculation. At present, researches on the ductile fracture of metal components are mostly based on the fracture samples of 10 kinds of classical plastic materials to analyze the ...
Lin Changliang, Hu Wengang, Liu Na
doaj   +1 more source

Notched impact behavior of polymer blends: Part 1: New model for particle size dependence [PDF]

open access: yes, 2009
A model is proposed to explain the observed relationships between particle size and fracture resistance in high-performance blends, which typically reach maximum toughness at particle diameters of 0.2–0.4 μm.
Paul, D. R., Bucknall, C. B.
core   +2 more sources

Application of Finite Element Method to Analyze the Influences of Process Parameters on the Cut Surface in Fine Blanking Processes by Using Clearance-Dependent Critical Fracture Criteria

open access: yesJournal of Manufacturing and Materials Processing, 2018
The correct choice of process parameters is important in predicting the cut surface and obtaining a fully-fine sheared surface in the fine blanking process.
Phyo Wai Myint   +4 more
doaj   +1 more source

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