OpenSees Steel01 Material Test

学习一下OpenSees的钢筋材料 — Steel01,测试一下材料的性能。

Steel01是OpenSees中最简单的单轴钢筋材料,骨架曲线为二折线,滞回法则默认为随动强化(即可以考虑 包辛格效应 ),同时可以分别考虑拉压方向的各向同性强化。(Steel01 is a uniaxial bilinear steel material object in OpenSees. It is with kinematic hardening and optional isotropic hardening described by a non-linear evolution equation.

  • 模型参数(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);
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)。

  • 例子(Example

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

Steel01-1

Steel01-2

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

Steel01-3

Steel01-4

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

Steel01-5
Steel01-6

(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)

Steel01-7

Steel01-8

  • 动画(Animation

视屏网址:http://v.youku.com/v_show/id_XMTUzOTczOTExMg==.html?from=y1.7-1.2#paction

一点点学习! 🙂  🙂  😎  😎

  • 参考(References

[1] Steel01 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

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3 thoughts on “OpenSees Steel01 Material Test

  1. Bihua Reply

    请问一下崔博士,如果是钢筋到达极限拉应变的破坏,怎么设置钢筋的极限拉应变呢?因为我看opensees钢筋本构中没有极限拉应变这个参数

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