4. Stress matrix
The chapter discusses the transformation of stress matrices within different coordinate systems, explaining the mathematical relationships and the physical underlying principles. It elaborates on how stress tensors are represented in matrix form and highlights the significance of rotation tensors in the transformation process. An example illustrates the transformation of a stress matrix, along with verification of its correctness by analyzing traction on specific planes.
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What we have learnt
- The stress matrix is a representation of the stress tensor in a coordinate system, which may change while the tensor itself remains invariant.
- The transformation of a stress matrix involves a relationship between stress matrices in different coordinate systems, using rotation tensors.
- The transformation of vector components requires different approaches based on whether the transformation is applied to basis vectors or vector components.
Key Concepts
- -- Stress Matrix
- A matrix representation of the stress tensor in a specific coordinate system.
- -- Transformation of Stress Matrix
- The mathematical process of relating stress matrices in two different coordinate systems.
- -- Rotation Tensor
- A tensor that defines the rotation relationship between two sets of basis vectors.
- -- Traction Vector
- A vector representing the internal forces acting on a plane, defined by normals in a coordinate system.
- -- Zero Column Vector
- A vector representation where all components are zero, signifying no traction on certain planes.
Additional Learning Materials
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