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GB1276718A - Improvements relating to analysis of strain in loaded components - Google Patents

Improvements relating to analysis of strain in loaded components

Info

Publication number
GB1276718A
GB1276718A GB6027369A GB6027369A GB1276718A GB 1276718 A GB1276718 A GB 1276718A GB 6027369 A GB6027369 A GB 6027369A GB 6027369 A GB6027369 A GB 6027369A GB 1276718 A GB1276718 A GB 1276718A
Authority
GB
United Kingdom
Prior art keywords
component
model
rubber
stresses
connecting rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6027369A
Inventor
John George Godfrey Hempson
Michael Louis Monaghan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricardo PLC
Original Assignee
Ricardo and Co Engineers 1927 Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricardo and Co Engineers 1927 Ltd filed Critical Ricardo and Co Engineers 1927 Ltd
Priority to GB6027369A priority Critical patent/GB1276718A/en
Publication of GB1276718A publication Critical patent/GB1276718A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G01B7/24—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

1276718 Measuring stress electrically RICARDO & CO ENGS (1927) Ltd 19 April 1971 [10 Dec 1969] 60273/69 Heading G1N The stresses in a loaded mechanical component are determined by measuring the strains in a rubber model of the component, using a variable inductance fixed to the component at the desired locations, the relationship between the stresses in the model and the actual component being dependent on their relative physical characteristics. The transducer 30, Fig.2, comprises a solenoid coil 31 and coaxial ferrite rod core 33, each mounted on a pin 32, 34 located a fixed distance apart. For testing a connecting rod for a V8 piston engine, a rubber model 10, Fig.1, is assembled round a roller 11 mounted on a board 12 and representing the big end. The small end is loaded through a proof ring 14A by a screw 16 acting on a block 15 attached to this end of the connecting rod. Additional loading by screw 25 is applied to secondary bearing 20 at an adjustable angle. Transducers 30 are attached to the rubber model at desired test locations, and the change in inductance, preferably converted by a tuned circuit to a change in frequency, is proportional to the local strain and stress. The model may be made of different grades of rubber to simulate a composite component of different materials.
GB6027369A 1969-12-10 1969-12-10 Improvements relating to analysis of strain in loaded components Expired GB1276718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6027369A GB1276718A (en) 1969-12-10 1969-12-10 Improvements relating to analysis of strain in loaded components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6027369A GB1276718A (en) 1969-12-10 1969-12-10 Improvements relating to analysis of strain in loaded components

Publications (1)

Publication Number Publication Date
GB1276718A true GB1276718A (en) 1972-06-07

Family

ID=10485336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6027369A Expired GB1276718A (en) 1969-12-10 1969-12-10 Improvements relating to analysis of strain in loaded components

Country Status (1)

Country Link
GB (1) GB1276718A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264832A3 (en) * 1986-10-16 1989-04-26 Hercules Incorporated Process and apparatus for monitoring laminate structural stability
CN103528493A (en) * 2013-10-15 2014-01-22 顾捷 Stress-strain test system for printed circuit board

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264832A3 (en) * 1986-10-16 1989-04-26 Hercules Incorporated Process and apparatus for monitoring laminate structural stability
CN103528493A (en) * 2013-10-15 2014-01-22 顾捷 Stress-strain test system for printed circuit board
CN103528493B (en) * 2013-10-15 2016-04-13 顾捷 A kind of printed circuit board stress-strain test system

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee