Results 91 to 100 of about 1,750 (215)

Ratcheting testing of polytetrafluoroethylene (PTFE) under multiple-step compression

, 2018
Uniaxial stress-controlled ratcheting experiments of PTFE (polytetrafluoroethylene) under cyclic compressive loads with multiple load steps were performed.
Linwei Ma, Wei Lin, Wei Wang, Xiaotao Zheng, Jiuyang Yu   +4 more
core   +1 more source

Study on local cyclic plastic behavior of 3D printed titanium alloy notched parts

Jixie qiangdu
The main purpose was to study the local cyclic plastic behavior of 3D printed titanium alloy notched parts. Firstly, the local stress and strain field near the 3D printed titanium alloy notch was analyzed in detail by finite element method， and the ...
LIU Huan, XU Yingdong, LI Jian, ZHAO Xun, LIU Depu, WANG Zhiqiang, ZHOU Yingchao, FANG Lijia, CHEN Pei, LIU Qing, SHEN Chengjun   +10 more
doaj  

Low cycle fatigue behavior and deformation mechanism of Ti–6Al–4V-0.55Fe alloy under the control of strain and stress amplitudes

Journal of Materials Research and Technology
The present study focuses on investigating the low cycle fatigue (LCF) behavior and cyclic deformation mechanism of Ti–6Al–4V-0.55Fe alloy under strain and stress control.
Yangyang Sun, Feng Chen, Shenwei Qian, Hui Chang, Wenshu Zhang, Liang Feng, Lian Zhou   +6 more
doaj   +1 more source

Parametric Nonlinear Finite Element Analysis of Strain Ratcheting in Pressurized Elbows Based on Random Vibration

Shock and Vibration, 1996
The large strain ratcheting in cyclic plasticity of a typical pressurized pipe elbow in a realistic nuclear piping system was investigated in a more quantitative manner than previously.
Yong Zhao, John D. Stevenson, H.T. Tang
doaj   +1 more source

Ratcheting and ratcheting-creep interaction in A356 aluminium alloy

, 2018
In automobile sectors, particularly inner turbo frame, engine blocks, pistons etc. and in aerospace industries the components like pistons, brackets, pulleys, wheels etc. are fabricated from the cast A356 aluminium alloy.
Mishra, Srimant Kumar
core  

Assessment methods for Bree-type ratcheting without the necessity of linearization of stresses and strains

International Journal of Pressure Vessels and Piping, 2007
Pressurized component design codes based on design-by-analysis require the evaluation of thermal ratcheting produced by the combination of primary and cyclic secondary stresses. In the current codes for nuclear power components provide domain categorization type evaluation methods of progressive strain, using Miller's or Bree's diagram.
openaire   +2 more sources

Study on Ratcheting Effect of Pressurized Straight Pipe with Local Wall Thinning Using Finite Element Analysis

, 2015
Ratcheting deformation is studied on straight pipe made of Z2CND18.12N stainless steel with local wall thinning subjected to constant internal pressure and reversed bending using finite element analysis.
Chen, X.H., Chen, X.
core   +1 more source

Evaluation of the ratcheting behavior of Cr-Mo steel used in CNG tank

Results in Engineering
Compressed natural gas (CNG) tanks, due to the frequent filling and emptying during their service life, are constantly subjected to fatigue loading on the tank's wall, which causes premature failure.
Karim Aliakbari, Shahab Kamel Abbasnia, Mahmoud Shariati   +2 more
doaj   +1 more source

3D Surface Acquisition and Reconstruction for Assessing the Extent of Strain Ratcheting and Wrinkling in Steel Tubulars

, 2011
Cyclic axial loads in steel tubular might lead to local buckling, wrinkling and accumulation of plastic strains in the tube. During their life time steel tubes may also experience different types of material loss such as corrosion or thinning. This paper
A. Abzal, M. Zeinoddini, M. Peykanu
core   +1 more source

Ratcheting Response of Heat-Treated Notched 1045 Steel Samples Undergoing Asymmetric Uniaxial Loading Cycles

Applied Mechanics
The present study evaluates the ratcheting response of notched cylindrical samples made of 1045 steel alloy subjected to asymmetric loading cycles using the kinematic hardening framework, coupled with Neuber’s rule.
Faezeh Hatami, Ahmad Varvani-Farahani
doaj   +1 more source