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A stress singularity is a location where the stress is theoretically infinite. As stress is equal to force/area, stress singularities occur where the area is 0. There are some common places for stress singularities to occur: Point loads or point supports Sharp inside corners A stress...

Stresses of a FE analysis are calculated for elements at their integration points (https://www.fea-solutions.co.uk/nodal-stress-calculation/). To come up with a nodal stress, the common procedure is to calculate the average of the extrapolated element stresses at that node. There are two methods for stress averaging:  - Topological method  -...

During the static stress analysis of a structure, FEA solves its stiffness matrix. The results of this solution are nodal displacements. That means a FEA stress analysis is actually a displacement analysis. The nodal displacement results are precise, that means each node within the mesh...

Snap-through buckling is a mode of instability and a type of buckling where an elastic system under a specific load will pass from one equilibrium state to another, different equilibrium state. An example of snap-through buckling is a jumping popper toy, which resembles a rubber spherical...

For all linear analysis, the equilibrium of forces and moments is established on the undeformed structure, also called first order analysis. For a linear buckling analysis, this means that any deformation due to loads applied will not be considered, although in reality this deformation might...

May your Easter basket be full of Joy, Happiness & Peace! Wishing you a very Happy Easter! your simulation team at FEA-Solutions   Call us today on +44 (0)1202 798991 to discuss how FEA-Solutions (UK) Ltd can help you to solve your real world engineering problems. Please read our Blog or browse through the...

Linear buckling analysis, also called Eigenvalue Buckling or Euler Buckling, results in buckling load factors (BLF) and associated buckling modes (deformation shapes). The BLF is expressed by a number which the applied load must be multiplied by to obtain the buckling load magnitude. Linear buckling...

When a structure is subjected to a compressive load, failure can occur due the stresses exceeding the material limits or due to buckling (geometric instability). Buckling is the sudden change in shape of a structure under a compressive load. Any further load increase after buckling...

Radiation is a form of heat transfer (https://www.fea-solutions.co.uk/heat-transfer-analysis/) that does not require the presence of particles to transfer heat energy, but transfers energy through the emission of electromagnetic waves. Therefore Radiation is the only form of heat transfer that can take place in a vacuum. All...

Convection describes the heat transfer (https://www.fea-solutions.co.uk/heat-transfer-analysis/) through the movement of fluids (liquids and/or gases) or between fluids and solids. There are two types: - Free convection (natural convection) - Forced convection When a gas heats up, it will expand in volume. This will cause its density to drop, compared...