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changing with temperature on welding residual stress, plastic strain and welding distortion of A7N01-T4 aluminum alloy was studied by finite simulation method. The simulation results show that the weld..., the strain hardening and strain softening effects counteract each other, introducing slightly influence on the welding residual stress, residual plastic strain and distortion. The welding longitudinal......
and experienced shear plastic strain based on the existing dilation models, numerical simulations of tunnels and underground openings with constant dilation parameter usually lead to satisfactory results... words: dilation; post-peak behavior; plastic zone; strain softening Cite this article as: Hamed MOLLADAVOODI, Marzieh RAHMATI. Dilation angle variations in plastic zone around tunnels in rocks-constant......
Plastic Deformation Mechanism of Dual-phase Steel at Different Strain Rates庞启航1,2,ZHAO Zhenduo3,徐梅3,徐振1,2,ZHAO Tan21. School of Materials and Metallurgy, University of Science and Technology... universal testing machine and a high-speed tensile testing machine.The plastic deformation mechanism was investigated from the perspectives of the strain rate sensitivity index,activation volume and dynamic......
; Influences of strain softening and seepage on elastic and plastic solutions of circular openings...; Abstract: Considering the influence of strain softening, the solutions of stress, displacement, plastic softening region radius and plastic residual region radius were derived......
of Mg89Zn4Y7 alloy was as extremely high as approximately 480 MPa at RT. After yielding, strong work-hardening was accompanied by a few percent of plastic strain. After that, however, the flow stress showed... yielding and the flow stress at 10% plastic strain reached about 430 MPa. Fig.6 shows the deformation microstructure observed in the TEM. Many dislocations were visible when observed......
J. Cent. South Univ. Technol. (2009) 16: 0025-0031 DOI: 10.1007/s11771-009-0004-8 Fig.4 Microstructures of non-oriented electrical steel deformed at strain rate of 1 s-1 and different temperatures: (a) 500 ℃; (b) 800 ℃; (c) 1 050 ℃; (d) 1 150 ℃ Fig.5 shows microstructures of the electrical steel after being deformed at 800 ℃ and different strain rates. After being deformed......
that should be described by the principle of dissipative structure and synergetics. This method has been widely used in plasticity, especially in strain hardening[13, 14]. In the process of severe plastic...Evolution of dislocation cells during plastic deformation ZHOU Zhi-min(周志敏)1, SUN Yan-rui(孙艳蕊)1, ZHOU Hai-tao(周海涛)2 (1. College of Science, Northeastern University, Shenyang 110004, China; 2......
double linear strain distribution assumption of RC beam strengthened with external-bonded or near-surface mounted fiber reinforced plasticRen Zhen-hua (任振华) 1, Liu Han-long (刘汉龙) 1, Zhou feng-jun (周丰... of the Headquarters of the General Staff, Beijing 100850, China)Abstract:Rehabilitation of existing structures with fiber reinforced plastic (FRP) has been growing in popularity because they offer superior......
strength theory (LSEST) were proposed. As for isotropic materials, the plastic yielding or brittle fracture of under uniaxial stress state would occur when the maximum TESSE reached the strain... of the strain specific energy generated by the normal and shear stresses at an oblique section refers to total equivalent strain specific energy (TESSE). For isotropic materials, we hypothesize that plastic......
