scholarly journals On Fatigue Fracture of the Clad Plate between Mild Steel and High Strength Steel

1974 ◽  
Vol 23 (244) ◽  
pp. 40-45
Author(s):  
Kazuo HONDA ◽  
Tashiyuki TORII
Keyword(s):  
Mild Steel ◽  
Fatigue Fracture ◽  
High Strength Steel ◽  
High Strength

Ultra-low Cycle Fatigue Fracture of High-Strength Steel Q460C and Its Weld

2018 ◽  
Vol 30 (11) ◽  
pp. 04018280 ◽  
Author(s):  
Fei Yin ◽  
Lu Yang ◽  
Liang Zong ◽  
Xiyue Liu ◽  
Yuanqing Wang
Keyword(s):  
Fatigue Fracture ◽  
High Strength Steel ◽  
Low Cycle Fatigue ◽  
High Strength ◽  
Cycle Fatigue

scholarly journals On the Low Cycle Fatigue Behavior in the Longitudinally Butt Welded Joints between High Strength Steel and Mild Steel

1977 ◽  
Vol 1977 (142) ◽  
pp. 236-244
Author(s):  
Kinichi Nagai ◽  
Mitsumasa Iwata ◽  
Kenhichiro Kurihara ◽  
Junkichi Yagi ◽  
Yasumitsu Tomita
Keyword(s):  
Mild Steel ◽  
Welded Joints ◽  
High Strength Steel ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
High Strength ◽  
Cycle Fatigue

Material Behaviour Modelling for Finite Element Vehicle Crash Simulation

2009 ◽  
Vol 410-411 ◽  
pp. 521-532
Author(s):  
Khawar Rabbani ◽  
Mike Daniels ◽  
Neil Walker ◽  
Bez Shirvani
Keyword(s):  
Finite Element ◽  
Mild Steel ◽  
Constitutive Equations ◽  
High Strength Steel ◽  
Piecewise Linear ◽  
Testing Machine ◽  
High Strength ◽  
Tensile Testing Machine ◽  
Material Models ◽  
Safety Research

Vehicle safety has increasingly become an economical factor for vehicle manufacturers and this has become most apparent in car safety [1-4]. Manufacturers are now spending considerable resources on safety research. Government requirements on safety have compelled manufacturers to carry out considerable number of crash tests to validate the safety of their cars [6-7]. The data from these tests is important in the development of simulation models employing finite element (FE) software. Many companies predict crashworthiness using commercially available software such as PAMCARSH and LS-DYNA. These simulations are based on mathematical constitutive equations and hence any simulation created is only as representative as the constitutive equations used. This project has studied the reliability of the material models used by LS-DYNA. Material models selected for analysis are used extensively by impact simulations software and were namely: Power Law Plasticity and Cowper/Symonds. Piecewise Linear Plasticity was also selected because it is based on a true stress/strain and is expected that the simulation would be representative. The models were developed using Belytschko-Lin-Tsay shell elements and were compared with experimental tests employing uni-axial tension strips carried out on three materials – aluminium, high strength steel and mild steel. The tests were carried out using a DARTEC tensile testing machine (up to strain rate of 2.0s-1) at UCE in Birmingham. Testing for the higher strain rates (aluminium up to 269.1s-1, mild steel up to 460s-1, and high strength steel up to 456.9s-1), were carried out at The Royal Military College, Shrivenham using a ROSAND tester.

Effect of vacuum environment on fatigue fracture surfaces of high strength steel

2016 ◽  
Vol 2 (0) ◽  
pp. 15-00730-15-00730 ◽  
Author(s):  
Fumiyoshi YOSHINAKA ◽  
Takashi NAKAMURA
Keyword(s):  
Fatigue Fracture ◽  
High Strength Steel ◽  
High Strength ◽  
Fracture Surfaces

Experimental Study on the Crash Performance of Aluminum and Steel Rails

2002 ◽  
Author(s):  
Chelliah Madasamy ◽  
Omar Faruque ◽  
Tau Tyan
Keyword(s):  
Mild Steel ◽  
Energy Absorption ◽  
Sheet Metal ◽  
High Strength Steel ◽  
High Strength ◽  
Maximum Load ◽  
Design Parameters ◽  
Impact Speed ◽  
Automotive Body ◽  
Metal Thickness

Increasing government mandated CAFE´ standards are forcing the OEMs to aggressively reduce vehicle weight. Aluminum, with a density of about a third of that of steel, has been established as a viable alternative to steel for the construction of the automotive body structure. However, for aluminum sheet metals, there are still lingering concerns about the reliability and robustness of the available joining techniques such as spot-welding, riveting etc. The investigation reported in this paper was aimed at evaluating the relative performance of self-pierced riveted aluminum rails as compared to spot-welded mild steel and high strength steel rails. A series of straight and curved (S-shaped) rails made of aluminum, mild steel, and high strength steel have been tested. Other design parameters considered in this study include sheet metal thickness, rivet/weld location, rivet/weld spacing, adhesives, temperature, and impact speed. As were observed from the tests, axial crush mode dominated the deformation of all straight rails while bending dominated the deformation of the curved rails. Statistical analysis was performed to find the relative importance and effects of each variable on the average crush load, maximum load and energy absorption. For aluminum rails, the thickness of the sheet metal was found to be the primary controlling factor for both straight and S-rails. Other factors i.e. rivet spacing/location, adhesives, temperature and impact speed, had no significant affect on the performance of the rails. For the steel rails, the sheet metal thickness, impact speed, temperature and material properties, were all found to be significant for the crash behavior. It was also found that the aluminum rails have higher specific energy absorption than the steel rails confirming that aluminum as a material is more efficient in absorbing crush energy than steel.

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