Results 21 to 30 of about 17,898,029 (271)

Effects of Welding Processes on the Low Temperature Impact Toughness of Structural Steel Welded Joints [PDF]

open access: yesJournal of Korean Society of Steel Construction, 2012
In this study, the Charpy impact test along with metallurgical observation was conducted to evaluate low temperature impact toughness of structural steel welds with different welding processes to find out the optimal welding process to guarantee the required impact toughness at low temperatures.
Chin Hyung Lee   +2 more
openaire   +1 more source

Improvement of low-velocity impact and compression-after-impact performance by z-fibre pinning. [PDF]

open access: yes, 2006
Z-fibre® pinning is a new method of through-thickness reinforcement of laminated composites. This paper presents an experimental test and theoretical analysis on how and why these pins can improve the resistance to impact loading and post- impact ...
X. Zhang   +5 more
core   +1 more source

Study on impact toughness of TMCP and quenched and tempered high strength steels

open access: yesCase Studies in Construction Materials
In this study, the effect of steel rolling technique, temperature, yield strength and welding heat input on the impact toughness of high-strength steels is studied. The impact toughness of five kinds of high strength steels with yield strength of 550 MPa,
Jin Jiang   +4 more
doaj   +1 more source

The Influence of Centerline Segregation on Impact Toughness in Welding Heat-Affected Zone of X70 Pipeline Steel

open access: yesMetals
The influence of centerline segregation on the low-temperature impact toughness of the heat-affected zone (HAZ) of welded joints was studied by welding experiments on X70 steel plates rolled from continuous casting slabs with segregation grades of class ...
Fujian Guo   +4 more
doaj   +1 more source

Influence of equal-channel angular extrusion on impact toughness of aluminum and brass at room and low temperatures [PDF]

open access: yesInternational Journal of Mechanical and Materials Engineering, 2014
Abstract Background Equal-channel angular extrusion is a severe plastic deformation process that can be used for grain refinement to improve material properties of bulk metals. In this paper, the effect of equal-channel angular extrusion on the impact toughness of aluminum 1100 and brass C26000 was investigated.
Wang, Jyhwen   +3 more
openaire   +1 more source

Validation of low velocity impact modelling on different stacking sequences of CFRP laminates and influence of fibre failure [PDF]

open access: yes, 2013
This paper presents a validation of low-velocity impact Finite Element (FE) modelling. Based on switching ply location of reference layup [02,452,902,-452]s T700GC/M21 laminated plates from Bouvet et al.
Bouvet, Christophe   +2 more
core   +1 more source

Study on the effect of micro-shrinkage porosity on the ultra-low temperature toughness of ferritic ductile iron

open access: yesHigh Temperature Materials and Processes, 2022
In this study, the ductile iron ingots are cast using a metal mold, and the riser neck diameter is changed to control the micro-shrinkage porosity, which can affect the ultra-low temperature toughness of ferritic ductile iron.
Chen Shuying   +5 more
doaj   +1 more source

Insight into the Role of Mo Content on the Microstructure and Impact Toughness of X80 Thick-Walled Low-Temperature Pipeline Steel

open access: yesMetals, 2023
In this manuscript, the effects of Mo content on the microstructure and impact toughness of X80 thick-walled low-temperature pipeline steel were studied.
Jinxing Jiang   +5 more
doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Analysis of temperature effects near mode I cracks in glassy polymers [PDF]

open access: yes, 2005
A previous isothermal study has shown that the toughness of glassy polymers is governed by the competition between shear yielding and crazing. The present work aims at investigating loading rates for which thermal effects need to be accounted for.
Estevez, R.,   +14 more
core   +2 more sources

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