Test specimen design incorporating multiple fracture sites and m

Details Test specimen design incorporating multiple fracture sites and m Test specimen design incorporating multiple fracture sites and m

1998-03-18

1999-05-18

Noori, Max H.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73804, G01N3/08

Patent

active

059052040

ABSTRACT:
A material test specimen design is taught for the determination of critical train and stress states for multiaxial fracture. The objective of the specimen is to increase the amount of data obtained per specimen while retaining simplicity in testing procedure by using standard tension testing machines to generate the primary deformation of the specimen. The specimen, in conjunction with analytical or computational simulation, uses nonuniform deformation fields produced by secondary and tertiary strain concentrations to generate and track these multiaxial strain states to fracture. Typically, the primary deformation is uniaxial tension of a panel, the secondary strain concentration is a circular hole in the panel and the tertiary strain concentrations are areas of reduced thickness within the deformation field of the circular hole. Multiaxial strain ratios from -0.50 to -0.10 and control over fracture initiation sites may be generated by a test specimen design of the type taught by this invention.

REFERENCES:
patent: 5022272 (1991-06-01), Bronowicki et al.
patent: 5431060 (1995-07-01), Lauren
patent: 5508801 (1996-04-01), Panin et al.
patent: 5581040 (1996-12-01), Lin

Affiliated with

Also associated with

Rating

Test specimen design incorporating multiple fracture sites and m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Test specimen design incorporating multiple fracture sites and m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Test specimen design incorporating multiple fracture sites and m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1760696