Nondestructive Measurement of Bulk Residual Stresses.
Abstract
This report states the objectives and the accomplishments of the research program performed to develop the method of the temperature dependence of ultrasonic velocity to determine residual stresses. The report comprises of four papers which contain the results obtained and the discussions made on these results. The papers also include the theoretical calculations obtained in support of the experimental work. Residual stresses are those contained in a body which has no external traction or other sources of stress, such as thermal gradients or body forces. When the body is externally loaded, these stresses are called internal stresses, and, accordingly, residual stresses may be considered as a special case for vanishing external loads. Residual stresses result from non-uniform plastic deformation which includes cold working, forming, forging, heat treatment, etc. Their presence in manufactured components plays an important role in determining the behavior of the component when it is subjected to service loads and environment. The residual stress distribution directly affects the growth rate and frequency of formation of stress induced cracks in steels.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1984
- Accession Number
- ADA147063
Entities
People
- K. Salama
Organizations
- University of Houston