`specfem::point::stress`¶

template<typename Tags> using specfem::point::stress = impl::stress<Tags::dimension_tag, Tags::medium_tag, Tags::using_simd>¶

Represents a stress tensor at a quadrature point in spectral element simulations.

The stress class encapsulates stress tensor data and provides operations for stress transformations in finite element computations. The tensor dimensions and components are determined by the medium type and spatial dimension:

Acoustic medium: 1 component in 2D/3D (scalar pressure)
Elastic medium: 2 components in 2D, 3 components in 3D (velocity components)
Poroelastic medium: 4 components in 2D (solid and fluid phases)

The class inherits from the data access framework providing SIMD vectorization support and efficient memory access patterns for high-performance computing.

// Example: Create stress tensor for 2D elastic medium
using stress_type = specfem::point::stress<
    specfem::tags::Tags<specfem::element::dimension_tag::dim2,
                        specfem::element::medium_tag::elastic_psv,
                        false>>;

// Initialize stress components (2x2 tensor for 2D elastic)
typename stress_type::value_type T(1.1, 2.1,  // first column  (component 0,
1) 1.2, 2.2); // second column (component 0, 1) stress_type stress_tensor(T);

// Transform stress using jacobian matrix
// auto jacobian = initialize_jacobian_matrix();
auto transformed_stress = stress_tensor * jacobian;

specfem::point::stress¶

`specfem::point::stress`¶