Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Apparatus for pre-stress-straining rod-type specimens in tension for in-situ passive fracture testing










Image Number 2 for United States Patent #8230748.

A stress-strain testing apparatus imposes a stress-strain on a specimen while disposed in a controlled environment. Each end of the specimen is fastened to an end cap and a strain gage is attached to the specimen. An adjusting mechanism and a compression element are disposed between the end caps forming a frame for applying forces to the end caps and thereby stress-straining the specimen. The adjusting mechanism may be extended or retracted to increase or decrease the imposed stress-strain on the specimen, and the stress-strain is measured by the strain gage on the specimen while the apparatus is exposed to an environment such as high pressure hydrogen. Strain gages may be placed on the frame to measure stress-strains in the frame that may be caused by the environment.








 
 
  Recently Added Patents
Dual work function recessed access device and methods of forming
Tracking data eye operating margin for steady state adaptation
Method of preparing enteric hard capsule and enteric hard capsule prepared thereby
Method for controlled layer transfer
Organizer
Method and apparatus for optimizing paging in a communication network
Intelligent sensor network
  Randomly Featured Patents
VSWR compensation circuits for RF transmit chain
Laryngoscope and method
Cephalosporins
Method for pouring quantities of chocolate into molds
Respiration-correlated radiotherapy
Process for reducing Ramsbottom Carbon Test of short residues
DNAs encoding analog GM-CSF molecules displaying resistance to proteases which cleave at adjacent dibasic residues
Solid alkylbenzene sulfonates and cleaning compositions having enhanced water hardness tolerance
Modular U-turn tunnel finisher
Electrode foil for capacitors and solid electrolytic capacitor