OpenSees Steel02 Material Test

Steel02材料是单轴各向同性强化的Giuffre-Menegotto-Pinto钢材本构。Steel02是OpenSees中十分强大的一个单轴钢筋材料。通过设置其参数可以调整出多种意想不到的效果。作为初学者,我也要学习一下。

  • 材料参数(Material Parameters

Fy:屈服强度(yield strength);

E0:初始弹性模量(initial elastic tangent);

b:应变强化率,即屈服后斜率与初始弹性模量的比值(strain-hardening ratio, ratio between post-yield tangent and initial elastic tangent);

R0、cR1、cR2:控制从弹性段向塑性段过度的参数(parameters to control the transition from elastic to plastic branches, Recommended values: R0=between 10 and 20, cR1=0.925, cR2=0.15);

a1:等向强化参数(isotropic hardening parameter, increase of compression yield envelope as proportion of yield strength after a plastic strain of a2*Fy/E0);

a2:等向强化参数(isotropic hardening parameter);

a3:等向强化参数(isotropic hardening parameter, increase of tension yield envelope as proportion of yield strength after a plastic strain of a4*Fy/E0);

a4:等向强化参数(isotropic hardening parameter);

sigInit:初始应力值(initial stress value)。

从材料的参数可以发现,与Steel01基本类似,也具有Steel01的一些基本特性,同时可以分别考虑拉压方向的各向同性强化。

  • 测试(Test

(1)默认随动强化的滞回性能(Hysteretic Behavior of Model without Isotropic Hardening

s02

s02-kine

(2)受压向考虑强化滞回性能(Hysteretic Behavior of Model with Isotropic Hardening in Compression

s02-con-material

s02-comp-hard

(3)受拉向考虑强化的滞回性能(Hysteretic Behavior of Model with Isotropic Hardening in Tension

s02-ten-hard-material

s02-ten-hard

(4)同时考虑拉-压各向同性强化的滞回性能(Hysteretic Behavior of Model with Isotropic Hardening both in Tension and Compression)

s02-iso-material

s02-iso

  • 参考(References

[1] Steel02 Material

  • 程序下载 ( Program Download )

[Tool][软件] OpenSees Material Test [OpenSees单轴材料测试工具]

PS. 程序免费下载 ,欢迎大家给我提意见 ,敬请尊重劳动成果

  • 相关话题 ( Related Topics)

[1] OpenSees Concrete06 Material Test

[2] OpenSees ConcreteD Material Test

[3] OpenSees Concrete04 Material Test

[4] OpenSees Concrete02 Material Test

[5] OpenSees Concrete01 Material Test

[6] OpenSees RambergOsgoodSteel Material Test

[7] OpenSees Steel02 Material Test

[8] OpenSees Steel01 Material Test

  • 备注(Comments

感谢 林乐斌 师弟 帮忙整理文档。

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3 thoughts on “OpenSees Steel02 Material Test

  1. oushii Reply

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    微信号:oushii

  2. Pingback: [Tool] OpenSees Material Test | 崔济东的博客 - JiDong Cui's Blog

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