Results 61 to 70 of about 513,932 (143)

J and CTOD Estimation Procedure for Circumferentially Cracked Pipes Based on Fully-Plastic Solutions

, 2010
This work provides an estimation procedure to determine the J-integral and CTOD for pipes with circumferential surface cracks subjected to bending load for a wide range of crack geometries and material (hardening) based upon fully-plastic solutions.
Claudio Ruggieri, Mario S. G. Chiodo
core   +1 more source

A New CTOD Calculation Formula, Considering Strain-hardening Property [PDF]

, 2014
Crack opening profiles and crack tip opening displacement (CTOD) in single edge notch bend (SE(B)) specimens were investigated by the silicone rubber replication of loaded crack tips.
Tagawa, Tetsuya, Yamashita, Yoichi, Mimura, Hiroshi, Tamura, Ei-ich, Minami, Fumiyoshi, Aihara, huji, Kawabata, Tomoya, Ohata, Mitsuru, Hagihara, Yukito, Yoshinari, Hitoshi, Kayamoi, Yoichi, Sakimoto, Takahiro   +11 more
core   +1 more source

Constraint-Driven Fracture Toughness Assessment of Unequal-Wall-Thickness X80-X60 Girth Welded Pipelines Using SENT Specimens

Metals
Unequal-wall-thickness X80-X60 girth welded joints used in pipeline transition sections exhibit strong local mechanical heterogeneity, while the wall-thickness transition also introduces a separate structural geometry effect.
Ke Wang, Min Zhang, Dan Chen, Weifeng Ma, Weizhe Hao, Xuan Yang   +5 more
doaj   +1 more source

Experimental and Numerical Analysis of Fracture in 41Cr4 Steel – Issues of the Stationary Cracks

International Journal of Applied Mechanics and Engineering, 2018
This paper analyzes the process of fracture in 41Cr4 steel on the basis of experimental and numerical data obtained for non-propagating cracks. The author’s previous and latest experimental results were used to determine the apparent crack initiation ...
M. Graba
doaj   +1 more source

The behavior of statically-indeterminate structural members and frames with cracks present [PDF]

, 2009
Arts et Métiers ParisTech, invitation en tant que professeur invité de Paul C. Paris au LAMEFIPCrack stability is discussed as affected by their presence in statically-indeterminate beams, frames, rings, etc. loaded into the plastic range.
PARIS, Paul C., Paul C. Paris, PARIS, Paul Croce, PALIN-LUC, Thierry, Thierry Palin-Luc   +4 more
core   +1 more source

Microstructure and mechanical properties of 9Ni steel joints welded by NiCrMo filler alloy

Cailiao gongcheng
Welding of cryogenic 9Ni steel is performed using NiCrMo alloy systems with different Nb and C contents. The microstructure and mechanical properties of the welded joints are investigated， and the fracture toughness of the joints under ultra-cryogenic ...
CHANG Zijin, QI Yanchang, MA Chengyong, CONG Baoqiang, WEI Jinshan, PENG Yun   +5 more
doaj   +1 more source

A Mechanical Model For The Quantification Of The Effect Of Laser Quenching On Ctod In Steels

, 2009
The technology of laser quenching is widely used to improve the surface properties of steels in surface engineering. Generally, laser quenching of steels can lead to two important results. One is the generation of residual stress in the surface layer. In
Yang BQ, 肖京华, 陈光南, 杨班权, 罗耕星, 张坤   +5 more
core   +1 more source

Gross plastic deformation of axisymmetric pressure vessel heads [PDF]

, 2006
The gross plastic deformation and associated plastic loads of four axisymmetric torispherical pressure vessels are determined by two criteria of plastic collapse: the ASME twice elastic slope (TES) criterion and the recently proposed plastic work ...
Camilleri, D., Camilleri, Duncan, Hamilton, Robert, Mackenzie, Donald, Mackenzie, D., Hamilton, R.   +5 more
core   +1 more source

High-Speed Bearing Reliability: Analysis of Tapered Roller Bearing Performance and Cage Fracture Mechanisms

Metals
This investigation examines the fracture mechanisms of 31,311 tapered roller bearing cages using finite element analysis (FEA) and the Gurson–Tvergaard–Needleman (GTN) damage model. Static, dynamic, modal, and harmonic response analyses identify critical
Qingsong Li, Jiaao Ning, Hang Liang, Muzhen Yang   +3 more
doaj   +1 more source

Effect of heat input on microstructure evolution and fracture toughness of interlayer heat affected zone in ultra-high strength steel

Journal of Materials Research and Technology
This study investigates the effect of welding heat input on microstructural evolution and fracture toughness in the interlayer heat-affected zone (IHAZ) of ultra-high strength steel (UHSS).
Libo Wang, Yishan Jiang, Chengyang Hu, Xiangliang Wan, Guangqiang Li   +4 more
doaj   +1 more source