On the Application of Stress Triaxiality Formula for Plane Strain Fracture Testing 来自 掌桥科研 喜欢 0 阅读量: 200 作者:Yuanli Bai,Xiaoqing Teng,Tomasz Wierzbicki 摘要: Theoretical and experimental studies have shown that stress triaxiality is the key parameter controlling the magnitude of the ...
For preventing a microcrack nucleus from blunting at low temperatures, it is necessary to not only consider σe in the denominator of stress triaxiality formula, but also to consider the friction stress σi at each temperature. Because the real driving force for plastic strain is σe − σi...
Non-axially symmetric deformation of a nucleus is introduced to account for the admixture of the collective rotational bands and the distribution of the yrast levels. A new rotational level scheme and an approximate formula for the yrast are derived....
Compounds of formula (I), and salts and prodrugs thereof wherein n is 1, 2 or 3; X represents O or S; R¹ represents optionally substituted phenyl; R² represents aryl, heteroaryl, benzhydryl, or benzyl; R⁴ and R⁵ each independ... R Baker,T Harrison,CJ Swain,... - EP ...
A formula that contains the stress triaxiality and equivalent strain is proposed for the proportional loading process to determine the influence of the stress state on the fatigue life with the local strain being the cause of fatigue damage. The three categories that classifies the multiaxial fatigue...
Then, we work out analytical formulae for the new contributions, showing that their numerical values are within the truncation level adopted by REN-2000 (Souchay et al. 1999), which was fixed to 0.1 渭as.doi:10.1051/0004-6361:20020734Escapa, A....
A more general expression for the Bridgman formula is possible that gives the triaxiality as a function of both the notch radius and the location along the radius of the notch root. The more general expression can be found in the review by Tu et al. [54], or the original derivation by ...
The formulae presented give a good description of the data for low spin capture into 124 nuclei with 72 doi:10.1016/j.phpro.2013.06.015Grosse, EckartJunghans, Arnd R.Massarczyk, RalphElsevier B.V.Physics Procedia
On the application of stress triaxiality formula for plane strain fracture testing. J. Eng. Mater. Technol. 2009, 131, 021002. [Google Scholar] [CrossRef] Bai, Y. Effect of Loading History on Necking and Fracture PhD in Applied Mechanics Massachusetts Institute of Technology; Massachusetts ...
For round bar notched specimens, the stress triaxiality at the center of net section can be calculated by the formula 𝜂=13+ln(1+𝑎02𝑅0)η=13+ln1+a02R0, which was proposed by Bridgman [45], where 𝑎0a0 is the round radius of the net section and 𝑅0R0 is the notch radius...