【摘要】 从总能量函数出发，采用折衷近似理论，对弹性杆热膨胀大挠度屈曲问题提出了一种简单实用的近似算法，给出了确定临界变温和变形的近似公式，并比较了线性解和非线性解的差异更多还原

【Abstract】 On the basis of compromise theory and general energy function,the paper proposes a simple and practical approach method for solving thermal expansion buckling problem in large deflection for an elastic columns. The formulas calculating critical change temperature and deflection are derived. The difference between nonlinear and linear solution are showed in this paper.更多还原