说明：  有限单元法原理与应用 第2版(朱伯芳)是有限元书籍中比较经典的一本，包含了杆系、平面、空间单元的原理与应用，涉及流体力学，热传导，混凝土徐变，弹性稳定，大位移，断裂问题等等。
(Finite element method and application of Principle 2 (Zhu Bofang) is the finite element books more classic one, including the bar, flat, space modules and application of the principles involved in fluid mechanics, heat conduction, concrete creep, elastic stability, large displacement, fracture, etc..)