Design for Minimum Weight
Abstract
Design rather than analysis poses the real problem in machines and structures. The basis for an optimum design is, of course, a compromisebetween material and fabrication costs within some space limitation. It is always of interest, therefore, to know the minimum weight possible so that an appropriate design may be selected. A very simple formal approach to this problem is outlined for a perfectly plastic material with a completely general yield criterion and then specialized to sheets, membranes and plates, Some of the specific results have been established previously by more elaborate techniques, others appear to be new. Much more work must be done because in all cases the conditions found are sufficient rather than necessary and the question of existence of solutions arises. Also, in applications involving bending of homogeneous beams and plates the minimum is a relative one and not an absolute one as for space structures, sheets, and membranes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1956
- Accession Number
- ADA950504
Entities
People
- D. C. Drucker
- R. T. Shield
Organizations
- Brown University