feat: add analysis model objects

include/fesa/material/LinearElasticMaterial.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "fesa/material/Material.hpp"
+
+namespace fesa::material {
+
+class LinearElasticMaterial final : public Material {
+public:
+    LinearElasticMaterial(MaterialId id, double young_modulus, double poisson_ratio);
+
+    MaterialId id() const noexcept override;
+    double youngModulus() const noexcept;
+    double poissonRatio() const noexcept;
+
+private:
+    MaterialId id_;
+    double young_modulus_;
+    double poisson_ratio_;
+};
+
+} // namespace fesa::material

include/fesa/material/Material.hpp

@@ -0,0 +1,16 @@
+#pragma once
+
+#include "fesa/core/ModelTypes.hpp"
+
+namespace fesa::material {
+
+using fesa::core::MaterialId;
+
+class Material {
+public:
+    virtual ~Material() = default;
+
+    virtual MaterialId id() const noexcept = 0;
+};
+
+} // namespace fesa::material