039BPA

说明：  应用visual studio软件，将疲劳三个方向应力合成主应力(Used to stress stress synthesis in three directions as fatigue hot spot stress)

说明：  滞回环面积求解，实验数据中滞回曲线的面积计算，采用MATLAB编写。(Solving the area of hysteresis loop)

说明：  双线性滞回模型，单自由度结构的地震时程分析(Bilinear hysteretic model, seismic time history analysis of single degree of freedom structure)

说明：  用于房屋、大坝、桥梁、水电站等大型结构的时程分析，根据桥梁抗震细则规范标准谱得到的25条地震波(For time history analysis of large structures such as buildings, dams, bridges and Hydropower stations, 25 seismic waves are obtained according to the standard spectrum of seismic rules for bridges.)

说明：  三层框架，瑞雷阻尼。 激励是白噪声。 先计算得到理论的响应时程，理论频率，再利用响应做峰值法识别频率模态，与理论频率对比。 程序只写到了画ANPSD曲线，还需要自己写一个拾取峰值的代码。(Three story frame, Rayleigh damping. The excitation is white noise. First, the theoretical response time history and frequency are calculated, and then the peak response method is used to identify the frequency mode, which is compared with the theoretical frequency. Later, you need to write a code to pick up the frequency corresponding to the peak value.)

说明：  第三代benchmark模型，可用于主动控制算法的比较(The third generation benchmark model can be used to compare active control algorithms)

说明：  abaqus VUMAT子程序,用于复合材料hashin-3D失效准则，只能用于abaqus/explici求解器(subroutine for abaqus/explicit)

说明：  可以用该程序进行多自由度结构的地震控制计算(Earthquake control calculation of structures)

徐世良经典算法集合，包含常用的各种算法，供大家下载参考(index for FEM code)

说明：  3维米塞斯屈服准则模型，子程序为vumat，用于abaqus(ABAQUS 3-dimensional Mises yield criterion)