Johnson-Cook strength model constants for VascoMax 300 and 1080 steels. In Proceedings of the 14th American Physical Society (APS) Topical Conference on Shock compression of condensed matter, Baltimore, 2005, pp. 709-712.Cinnamon JD, Palazotto AN, Brar NS, Kennan Z, Bajaj D (2006) Johnson-...
Johnson–Cook strength modelJohnson〤ook (JC) high temperature strength material models have been widely used in Finite Element Analysis (FEA) to solve variety of hot rolling problems. In this paper, the temperature and strain rate related parameters of JC model were experimentally calibrated for ...
•屈服强度(Yield strength):表示材料在开始发生塑性变形前所能承受的最大应力,单位为MPa; •塑性应变硬化指数(Strn-hardening exponent):表示材料的塑性变形特性,描述了材料在屈服点后的应变硬化能力; •热软化指数(Thermal softening exponent):表示材料的热软化特性,描述了材料在高温下变软的能力; •材料常数...
国产C30混凝土考虑率型微损伤演化的改进Johnson-Cook强度模型
(Facultyof EngineeringNingbo University NingboZhejiang 315211China)AbstractThe dynamic mechanical behavior of C30 concrete is investigated in one-dimensional stressstate undera wide range of strain rates from 10Servo-hydraulic testing system. According to Johnson-Cook′s strength model the strain rate ...
The new strength model consists in a generalization of the original JC model, toward achieving a better modeling coherence. The present enhanced model allows to better describe the effects of equivalent plastic strain rate and temperature on the lower yield stress and on the plastic flow. The ...
Ranges of stress state attainable by various types of tests [1] 参考: [1] Wierzbicki, Tomasz, "Addendum to the Research Proposal on "Fracture of Advanced High Strength Steels.", page 19, January 2007 来源:Altair澳汰尔 登录后免费查看全文 立即登录 ...
具体如何输入可以参见 Radioss帮助手册Reference Guide工具书上关于/FAIL/TAB1的例子。 Ranges of stress state attainable by various types of tests [1] 参考: [1] Wierzbicki, Tomasz, "Addendum to the Research Proposal on "Fracture of Advanced High Strength Steels.", page 19, January 2007...
Strength model 一个强度模型和数据(关于金属承受大应变、高应变率和高温)已经被提 出[7].尽管本文的焦点是断裂特性,但是这个强度模型的结果对于评价断裂模 型,是非常必要的。 The model for the von Mises tensile flow stress , , is expressed as 流动应力 (1 ) 等效塑性应变(equivalent ...
c yield strength Yn = ( A + B*epsp**n )*hsv(8) c c effective plastic strain increment depsp = max( 0.0, sigtry - Yn ) / 3.0*g c scale = Yn/( sigtry + 1d-8 ) c radial return sij = scale*sij c effective plastic strain update ...