scholarly journals EVALUATION ON PLASTIC DEFORMATION CAPACITY OF WELDED BEAM ENDS UNDER CYCLIC LOADING USING FE ANALYSIS

2019 ◽  
Vol 84 (759) ◽  
pp. 695-704
Author(s):  
Yoshikazu SAWAMOTO ◽  
Makoto OHSAKI
Keyword(s):  
Plastic Deformation ◽  
Cyclic Loading ◽  
Fe Analysis ◽  
Deformation Capacity

scholarly journals HYSTERETIC CHARACTERISTICS AND PLASTIC DEFORMATION CAPACITY OF UPLIFT YIELDING BASE-PLATES FOR CONTROLLED ROCKING FRAMES

2010 ◽  
Vol 75 (652) ◽  
pp. 1159-1166 ◽  
Author(s):  
Mitsumasa MIDORIKAWA ◽  
Tatsuya HASEGAWA ◽  
Tadashi ISHIHARA ◽  
Tatsuya AZUHATA ◽  
Tetsuhiro ASARI
Keyword(s):  
Plastic Deformation ◽  
Deformation Capacity ◽  
Hysteretic Characteristics ◽  
Base Plates

An Experimental Study of Inhomogeneous Cyclic Plastic Deformation

2001 ◽  
Vol 123 (3) ◽  
pp. 274-280 ◽  
Author(s):  
Yanyao Jiang
Keyword(s):  
Plastic Deformation ◽  
Cyclic Loading ◽  
Small Strain ◽  
Local Deformation ◽  
Gage Section ◽  
Strain Gages ◽  
Cyclic Plastic ◽  
Symmetrical Loading ◽  
Increasing Cyclic Loading ◽  
Cyclic Plastic Deformation

A localized inhomogeneous cyclic plastic deformation phenomenon was experimentally investigated in a mild steel. Small strain gages were utilized to characterize the local deformation within the gage section and the gross deformation was measured with an extensometer. Both fully reversed symmetrical loading and asymmetrical loading with a mean stress were used in the cyclic experiments. Plastic deformation was initiated in local areas of the specimen and it propagated into the whole gage section in the specimen with increasing cyclic loading. The local inhomogeneous cyclic deformation was dependent on the loading magnitude and evolved with continued cyclic loading.

Ductile Crack Propagation Simulation of a Cylinder With a Through-Wall Circumferential Flaw Under Excessive Cyclic Torsion Loading

2014 ◽  
Author(s):  
Kiminobu Hojo ◽  
Daigo Watanabe ◽  
Shinichi Kawabata ◽  
Yasufumi Ametani
Keyword(s):  
Cyclic Loading ◽  
Crack Growth ◽  
Rotation Angle ◽  
Fe Analysis ◽  
The Other ◽  
J Integral ◽  
Ductile Crack ◽  
Elastic Plastic ◽  
Cyclic Torsion ◽  
Ductile Crack Growth

A lot of applications of elastic plastic FE analysis to flawed structural fracture behaviors of mode I have been investigated. On the other hand the analysis method has not been established for the case of the excessive cyclic torsion loading with mode II or III fracture. The authors tried simulating the fracture behavior of a cylinder-shaped specimen with a through-walled circumferential flaw subjected to excessive monotonic or cyclic loading by using elastic plastic FE analysis. Chaboche constitutive equation of the used FE code Abaqus was applied to estimate the elastic plastic cyclic behavior. As a result in the case of monotonic loading without crack extension, the relation of torque-rotation angle of the experiment was estimated well by the simulation. Also J-integral by the Abaqus’ function agreed with a simplified J-equation using the calculated torque-rotation angle relation. On the other hand under load controlled cyclic loading associated with ductile crack growth, the calculated torque-rotation angle relation did not agree with the experimental one because of high sensitivity of the used stress-strain curve. J-integral from Abaqus code did not increase regardless of the accumulated crack growth and plastic zone. Several simplified ΔJ calculations tried to explain the experimental ductile crack growth and it seemed that da/dN-ΔJ relation follows the Paris’ law. From these examinations an estimation procedure of the structures under excessive cyclic loading was proposed.

Correlations between plastic deformation capacity and fragility/characteristic free volume in amorphous alloys

2018 ◽  
Vol 6 (1) ◽  
pp. 015201
Author(s):  
Xiaojin Xu ◽  
Zhilin Long ◽  
Zhihai Ping ◽  
Chaoping Yan ◽  
Wei Chai
Keyword(s):  
Plastic Deformation ◽  
Free Volume ◽  
Amorphous Alloys ◽  
Deformation Capacity
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