CONTENTS
Introduction 5
1 Kinematics of Cosserat continuum 10
1.1 Strain and wryness tensors . . . . . . . . . . . . . . . . . 12
1.2 Tensors of curvature of microstructure . . . . . . . . . . . 16
1.3 Compatibility conditions for B . . . . . . . . . . . . . . . 17
1.4 Determination of D
k
along a curve . . . . . . . . . . . . . 18
1.5 Relative strain measures . . . . . . . . . . . . . . . . . . . 20
1.6 Linear and angular velocities . . . . . . . . . . . . . . . . 21
1.7 Rates of strain . . . . . . . . . . . . . . . . . . . . . . . . 21
1.8 Higher rates of strain . . . . . . . . . . . . . . . . . . . . . 24
2 Theory of stresses 26
2.1 Forces and couples . . . . . . . . . . . . . . . . . . . . . . 26
2.2 Euler’s dynamics laws . . . . . . . . . . . . . . . . . . . . 28
2.3 Stress and couple stress tensors . . . . . . . . . . . . . . 29
2.4 On principal stresses . . . . . . . . . . . . . . . . . . . . . 42
2.5 Motion equations . . . . . . . . . . . . . . . . . . . . . . . 45
3 Constitutive equations of the micropolar fluid 47
3.1 Axioms of the constitutive equations . . . . . . . . . . . . 48
3.2 Constitutive equations of the micropolar fluid . . . . . . . 49
3.3 Boundary conditions . . . . . . . . . . . . . . . . . . . . . 54
3.4 Equations of an elastic micropolar fluid . . . . . . . . . . 55
4 Selected problems of statics 63
4.1 Twisted structure . . . . . . . . . . . . . . . . . . . . . . . 63
4.2 Plane problem . . . . . . . . . . . . . . . . . . . . . . . . 64
4.3 Equilibrium with free-boundary . . . . . . . . . . . . . . . 66
4.4 Equilibrium of phases of micropolar fluid . . . . . . . . . . 69