3. Traction vector
This chapter delves into the concept of the stress tensor, its matrix representation, and its significance in solid mechanics. It introduces the formation and importance of the traction vector across different planes and explains how stress tensors are formulated using these vectors. The representation of vectors and second-order tensors in various coordinate systems is also highlighted, demonstrating the differing representations while maintaining the same physical quantity.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- The traction vector is independent of the chosen planes used for its calculation.
- The stress tensor can be obtained by summing the tensor products of vectors with respect to chosen planes.
- The representation of vectors and tensors varies with coordinate systems, but the physical characteristics remain unchanged.
Key Concepts
- -- Traction Vector
- A vector that represents the stress acting on an area, which is independent of the choice of planes used for its calculation.
- -- Stress Tensor
- A second-order tensor that describes the stress state of a material at a point, expressed mathematically in the form of a matrix.
- -- Matrix Representation
- The mathematical framework used to express vectors and tensors, allowing operations like dot products and tensor products.
Additional Learning Materials
Supplementary resources to enhance your learning experience.