More Information on mass conservation in linear elasticity
More Information on mass conservation in linear elasticity
(OP)
Hi
Would anyone be able to help me with information on how conservation of mass is treated in standard FEA codes (Abaqus etc.), in small displacement linear thermo-elasticity. For example, with a temperature change, the volume would change (but not the mass hopefully) and so the density changes slightly. I know that most codes use a Lagrangian formulation for large displacements but what about small displacements where these effects although small are important for certain applications.
thank you
Would anyone be able to help me with information on how conservation of mass is treated in standard FEA codes (Abaqus etc.), in small displacement linear thermo-elasticity. For example, with a temperature change, the volume would change (but not the mass hopefully) and so the density changes slightly. I know that most codes use a Lagrangian formulation for large displacements but what about small displacements where these effects although small are important for certain applications.
thank you





RE: More Information on mass conservation in linear elasticity
RE: More Information on mass conservation in linear elasticity
I don't know what application would consider these changes important without going to a large strain/large displacement assumption.....
Ed.R.