We use the transformation matrix to calculate local stresses from the global stresses. Is the transformation matrix the same to calculate local strains from the global strains?
(A) No
(B) Yes
What is the transformation of stresses at one point from one coordinate system to another coordinate system dependent on?
(A) the angle between the two coordinate
systems
(B) elastic properties of the material.
(C) elastic properties of the material and
the angle between the two coordinate
systems
What is the transformation of strains at one point from one coordinate system to another coordinate system is dependent on?
(A) the angle between the two coordinate
systems
(B) elastic properties of the material and
the angle between the two coordinate
systems
(C) elastic properties of the material
Which matrix should be multiplied by the global strain vector to obtain the global stress vector?
(A) Transformation matrix
(B) Inverse transformation matrix
(C) Transformed rediced stiffness matrix
(D) Transformed compliance matrix
One of the major drawbacks of composites isWhich matrix should multiplied by the global stress vector to obtain the global strain vector?
(A) Inverse transformation matrix
(B) Transformed compliance matrix
(C) Transformation matrix
(D) Transformed reduced stiffness matrix
Which matrix should multiplied by the local stress vector to obtain the global stress vector?
(A) Inverse transformation matrix
(B) Transformation matrix
(C) Stiffness matrix
(D) Reduced stiffness matrix
If a normal stress is applied to an angle lamina in the global axes, it results only in normal strains in the global axes.
(A) True
(B) False