Abstract
This chapter covers the continuum mechanical description of solid or three-dimensional members. Based on the three basic equations of continuum mechanics, i.e., the kinematics relationship, the constitutive law, and the equilibrium equation, the partial differential equation, which describes the physical problem, is derived.
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Notes
- 1.
In the case of a shear force \(\sigma _{ij}\), the first index i indicates that the stress acts on a plane normal to the i-axis and the second index j denotes the direction in which the stress acts.
- 2.
If gravity is acting, the body force f results as the product of density times standard gravity: \(f=\tfrac{F}{V}=\tfrac{mg}{V}=\tfrac{m}{V}g=\varrho g\). The units can be checked by consideration of \(1\,\text {N}=1\tfrac{\text {m}\text {kg}}{\text {s}^2}\).
- 3.
A differentiation is there indicated by the use of a comma: The first index refers to the component and the comma indicates the partial derivative with respect to the second subscript corresponding to the relevant coordinate axis, [2].
References
Chen WF, Saleeb AF (1982) Constitutive equations for engineering materials. Volume 1: Elasticity and modelling. Wiley, New York
Chen WF, Han DJ (1988) Plasticity for structural engineers. Springer, New York
Eschenauer H, Olhoff N, Schnell W (1997) Applied structural mechanics: Fundamentals of elasticity, load-bearing structures, structural optimization. Springer, Berlin
Öchsner A (2014) Elasto-plasticity of frame structure elements: modeling and simulation of rods and beams. Springer, Berlin
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Öchsner, A. (2020). Three-Dimensional Solids. In: Partial Differential Equations of Classical Structural Members. SpringerBriefs in Applied Sciences and Technology(). Springer, Cham. https://doi.org/10.1007/978-3-030-35311-7_8
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DOI: https://doi.org/10.1007/978-3-030-35311-7_8
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