INVESTIGATION OF MECHANICS OF REINFORCED PLASTICS, PART II.
Abstract
Four aspects of the mechanics of reinforcement have been studied: 1) shrinkage stresses in thermosetting resin-fibrous glass systems containing relatively few glass elements; 2) improvement of a method for directly testing the strength of the resin-glass fiber joints; 3) a detailed investigation of flexural failure mechanisms in fabric-based laminate, and; 4) particular solutions for aeolotropic plate behavior derived from the more general theory previously developed. In the same order, the significant findings include: 1) high axial stresses can be created in fibers, depending upon their length, diameter, surface condition and relative orientation; 2) polyester-glass fiber joint strengths reach a maximum value, contingent upon cure exotherm, while stronger epoxyglass fiber specimens usually fail before interfacial fractures occur; 3) some of the modes of flexural fracture and the test method-material-strength interactions which apparently occur remain obscure though good progress was made, and; 4) interlaminar stress and strain effects in plate specimens, thought to be operative from common qualitative experimental observations are substantiated by theoretical analysis. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1962
- Accession Number
- AD0607828
Entities
People
- Edward M. Krokosky
- Frederick J. Mcgarry
- John R. Roy
- Lawrence J. Broutman
- William H. Haslett
Organizations
- Massachusetts Institute of Technology