6.1 Fundamental quantities and fundamental equations expressed by matrix 61基本量和基本方程的矩程表示 Body force体力:{p}=XYT Surface force面力:{p}=区XYT Displacement位移:{f}=uvT Strain应变: te=& E ryI Stress应力: to=lo oy txy l Geometrical equations Physical equations virtual work equations 徐汉忠第一版2000/7 弹性力学第六章有限元 8徐汉忠第一版2000/7 弹性力学第六章有限元 8 6.1 Fundamental quantities and fundamental equations expressed by matrix 6.1 基本量和基本方程的矩程表示 Body force 体力： {p}=[X Y]T Surface force 面力： {p}=[X Y]T Displacement 位移： {f}=[u v]T Strain 应变： {}=[x y rxy ] T Stress 应力： {}= [x y xy ] T Geometrical equations Physical equations virtual work equations