Difference between perpendicular and transverse directions
Answers
Whenever we talk about the axes(mentioned in the question),I too agree that it’s a bit confusing and many of the books aren’t clear about it.Well frankly speaking, I am no expert but what I consider and have understood is explained.Instead of direction ,I’ve written the term axis to be more precise.
Axial Axis: As the name suggests,it passes through the axis of the figure or the piece taken into account.Normally,axis here means the centriodal axis(axis passing through centroid).
Longitudinal Axis:the axis considered length wise
Transverse Axis:It is perpendicular to the longitudinal axis.So it is better and easier to consider the longitudinal axis first and then the transverse axis.
To have a clear picture in your mind,you may consider x and y axis.If x is the longitudinal axis then y will be the transverse axis.And the axial axis will depend upon the inclination of the piece from an axis.