Physically based sensitivity derivatives for finite-element programsAttention is given to a virtual-work approach to the definition of sensitivity in terms of physical quantities; sensitivity fields are treated as a solution to loadings that consist of body forces, initial strains, and initial stresses. The method can accordingly be implemented in a finite element package, with only minimal knowledge of its programming detail and without access to its source code. The application of the approach to one- and two-dimensional problems is demonstrated. The sensitivity of the structural response for truss structures was computed with respect to the cross-sectional areas of the members.
Document ID
19870046351
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Barthelemy, Bruno (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Haftka, Raphael T. (Virginia Polytechnic Institute and State University Blacksburg, United States)