Definition of "compliance" in structural optimization
Definition of "compliance" in structural optimization
(OP)
Hello everyone!
I hope my question doesn't sound very silly but I am quite confused and I haven't been able to clear this out myself. In various textbooks and articles of structural optimization I have come across the term "minimum compliance" referring to optimizing the design for a structure for maximum stiffness. The problem is that in these texts the so called "compliance" variable is defined as C=FTU , given in terms of energy (Force*Displacements) and it is getting directly associated with strain energy. I was under the impression that compliance is the inverse of stiffness and therefore it should be given in terms of Displacement/Force. Am I missing something basic here?
Any response would be really appreciated.
I hope my question doesn't sound very silly but I am quite confused and I haven't been able to clear this out myself. In various textbooks and articles of structural optimization I have come across the term "minimum compliance" referring to optimizing the design for a structure for maximum stiffness. The problem is that in these texts the so called "compliance" variable is defined as C=FTU , given in terms of energy (Force*Displacements) and it is getting directly associated with strain energy. I was under the impression that compliance is the inverse of stiffness and therefore it should be given in terms of Displacement/Force. Am I missing something basic here?
Any response would be really appreciated.






RE: Definition of "compliance" in structural optimization
BA
RE: Definition of "compliance" in structural optimization
I am aware that the inverse of stiffness is termed "flexibility" and this is actually the term that I have been using for it.
The reason that I am confused about it is that when I searched for the definition of the term "compliance" I have found it being defined both as the inverse of stiffness (in general structural analysis and FEM textbooks) and as C=FTU (in structural optimization textbooks). As I was not familiar with the term, it was confusing to find contradicting definitions.
In the end what is the usual meaning that is given to the term "compliance"?
RE: Definition of "compliance" in structural optimization
http://en.wikipedia.org/wiki/Stiffness#Compliance
BA
RE: Definition of "compliance" in structural optimization