TECTONICS OF CHINA (TIAN SHAN LABORATORY)

Where is stress,ε strain and the Young's modulus or elastic modulus

Strain Displacement Strain Strain field Strain determination in rocks

Review: 1.What is the orientation relationship between maximum shear stresses and principal stresses? 2. What are trajectories of principal stresses?

(A)General triaxial stress ellipsoid in perspective view. (B)Views normal to each of the principal planes of the ellipsoid. (After W.D. Means,1976)

Force Force is a kind of mechanical action between different objects, it tends to change the shape, volume or movement state of the object with a force upon it. Force is a vector quantity, and thus possesses both magnitude and direction; it can be represented by an arrow whose length specifies the magnitude and whose

OBSERVATION OF TECTONIC SAMPLES Observe tectonic samples in the STRUCTURAL SCOPE. Discuss what you observed with your group members. Select one representative of the group to exchange ideas with other groups in the class

1.地质纪年方法 2.地球的早期演化 3.地质发展历史

Planar fabric Linear fabric and the size and elements In one dimension is Are parallel to much Longer than that in one another the other two dimensions

有限元法同差分法一样,也是一种数值 近似方法,用于求解在给定定解条件下 的偏微分方程。 1960年 R Clough正式提出“有限单元 法”FEM这个概念,1967年0. CZienkiewicz 和 Cheung(张佑启)写出了第一本有 限元专著,标志着有限单元法正式走向 实用